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University of Melbourne
1.
WANG, CHIH-HONG.
Power allocation for distortion outage minimization in wireless sensor networks.
Degree: 2011, University of Melbourne
URL: http://hdl.handle.net/11343/36517
► This thesis presents energy-efficient power allocation algorithms for wireless sensor networks used in distributed estimation. We focus on problems that require minimizing the distortion outage…
(more)
▼ This thesis presents energy-efficient power allocation algorithms for wireless sensor networks used in distributed estimation. We focus on problems that require minimizing the distortion outage probability when fading is present. Optimal and suboptimal power allocation schemes have been obtained and analyzed for a number of different wireless sensor network models and network assumptions.
We first look at power allocation for a clustered wireless sensor network where the clusterheads send their observations to the fusion center through orthogonal multi-access channels. Assuming full CSI (channel state information) is available, we obtain optimal power allocation that minimizes distortion outage probability subject to a long-term average power constraint for any arbitrary fading distributions. We then consider partial CSI at the transmitter via limited feedback and propose suboptimal power allocation schemes with low computational complexity for Nakagami-m fading channels. Simulation results show significant power gain for just a few bits of feedback.
We then consider a wireless sensor network where sensors send their measurements to the fusion center using coherent multi-access assuming full CSI is available. We present three power allocations - equal power allocation, short-term optimal power allocation and long-term optimal power allocation - and analyze theoretically the diversity order of estimation outage, given in terms of the number of sensors in the network, that these three power allocation can achieve for Rayleigh fading. Simulation results are given for performance comparison.
Finally we consider power allocation for a wireless sensor network where the sensor data are spatially correlated. We obtained necessary and sufficient conditions for finding the optimal power allocation. Simulation results show significant power gain can be achieved when the correlation between the sensor data is exploited. Various other aspects of the problem such as finding the closed form power allocations for any general correlation matrix and asymptotic outage performance analysis are still open problems. Some ideas are provided for future work.
Subjects/Keywords: power control; sensor networks; outage probability
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APA (6th Edition):
WANG, C. (2011). Power allocation for distortion outage minimization in wireless sensor networks. (Doctoral Dissertation). University of Melbourne. Retrieved from http://hdl.handle.net/11343/36517
Chicago Manual of Style (16th Edition):
WANG, CHIH-HONG. “Power allocation for distortion outage minimization in wireless sensor networks.” 2011. Doctoral Dissertation, University of Melbourne. Accessed December 11, 2019.
http://hdl.handle.net/11343/36517.
MLA Handbook (7th Edition):
WANG, CHIH-HONG. “Power allocation for distortion outage minimization in wireless sensor networks.” 2011. Web. 11 Dec 2019.
Vancouver:
WANG C. Power allocation for distortion outage minimization in wireless sensor networks. [Internet] [Doctoral dissertation]. University of Melbourne; 2011. [cited 2019 Dec 11].
Available from: http://hdl.handle.net/11343/36517.
Council of Science Editors:
WANG C. Power allocation for distortion outage minimization in wireless sensor networks. [Doctoral Dissertation]. University of Melbourne; 2011. Available from: http://hdl.handle.net/11343/36517

University of Notre Dame
2.
Anjin Guo.
Coverage Performance in Cellular Networks: Spatial
Stochastic Model Fitting and Asymptotic Deployment
Gain</h1>.
Degree: MSin Electrical Engineering, Electrical Engineering, 2014, University of Notre Dame
URL: https://curate.nd.edu/show/vh53ws87s8t
► The spatial structure of base stations (BSs) in cellular networks plays a key role in evaluating the downlink performance. The BSs are usually assumed…
(more)
▼ The spatial structure of base stations (BSs)
in cellular networks plays a key role in evaluating the downlink
performance. The BSs are usually assumed to form a lattice or a
Poisson point process (PPP). In reality, however, they are deployed
neither fully regularly nor completely randomly.
Accordingly, in this thesis, we first use different
spatial stochastic models, including the PPP, the Poisson hard-core
process (PHCP), the Strauss process (SP), and the perturbed
triangular lattice, to model the spatial structure by fitting them
to the locations of BSs in real cellular networks obtained from a
public database. We propose the coverage
probability (the
probability that the signal-to-interference-plus-noise-ratio (SINR)
exceeds a threshold) as the criterion for the goodness-of-fit, and
provide two general approaches for fitting. One approach is fitting
by the method of maximum pseudolikelihood. As for the fitted
models, the SP provides a better fit than the PPP and the PHCP. The
other approach is fitting by the method of minimum contrast that
minimizes the average squared error of the coverage
probability.
This way, fitted models are obtained whose coverage performance
matches that of the given data set very accurately.
Second, we consider the very general class of
motion-invariant point processes as models for the BSs and
theoretically analyze the behavior of the
outage probability.
(complement of the coverage
probability). We show that, remarkably,
the slope of the
outage probability (in dB) as a function of the
threshold (also in dB) is the same for essentially all
motion-invariant point processes, as the threshold goes to zero.
The slope merely depends on the fading statistics. Using this
result, we introduce the notion of the asymptotic deployment gain
(ADG), which characterizes the horizontal gap between the coverage
probability of the PPP and another point process in the
high-reliability regime (where the coverage
probability is near 1).
To demonstrate the usefulness of the ADG for the characterization
of the coverage, we investigate the coverage probabilities and the
ADGs for different point processes and fading statistics by
simulations.
Advisors/Committee Members: Bertrand Hochwald, Committee Member, J. Nicholas Laneman, Committee Member, Martin Haenggi, Committee Member.
Subjects/Keywords: coverage probability; deployment gain; outage; general fading
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APA ·
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MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Guo, A. (2014). Coverage Performance in Cellular Networks: Spatial
Stochastic Model Fitting and Asymptotic Deployment
Gain</h1>. (Masters Thesis). University of Notre Dame. Retrieved from https://curate.nd.edu/show/vh53ws87s8t
Chicago Manual of Style (16th Edition):
Guo, Anjin. “Coverage Performance in Cellular Networks: Spatial
Stochastic Model Fitting and Asymptotic Deployment
Gain</h1>.” 2014. Masters Thesis, University of Notre Dame. Accessed December 11, 2019.
https://curate.nd.edu/show/vh53ws87s8t.
MLA Handbook (7th Edition):
Guo, Anjin. “Coverage Performance in Cellular Networks: Spatial
Stochastic Model Fitting and Asymptotic Deployment
Gain</h1>.” 2014. Web. 11 Dec 2019.
Vancouver:
Guo A. Coverage Performance in Cellular Networks: Spatial
Stochastic Model Fitting and Asymptotic Deployment
Gain</h1>. [Internet] [Masters thesis]. University of Notre Dame; 2014. [cited 2019 Dec 11].
Available from: https://curate.nd.edu/show/vh53ws87s8t.
Council of Science Editors:
Guo A. Coverage Performance in Cellular Networks: Spatial
Stochastic Model Fitting and Asymptotic Deployment
Gain</h1>. [Masters Thesis]. University of Notre Dame; 2014. Available from: https://curate.nd.edu/show/vh53ws87s8t

University of Alberta
3.
Babaee, Ramin.
Routing Strategies for Multihop Wireless Relaying
Networks.
Degree: MS, Department of Electrical and Computer
Engineering, 2010, University of Alberta
URL: https://era.library.ualberta.ca/files/w37637670
► Multihop routing is an effective method for establishing connectivity between the nodes of a network. End-to-end outage probability and total power consumption are applied as…
(more)
▼ Multihop routing is an effective method for
establishing connectivity between the nodes of a network.
End-to-end outage probability and total power consumption are
applied as the optimization criteria for routing protocol design in
multihop networks based on the local channel state information
measurement at the nodes of a network. The analysis shows that
employing instantaneous channel state information in routing design
results in significant performance improvement of multihop
communication, e.g., achieving full diversity order when the
optimization criterion is outage performance. The routing metrics
derived from the optimization problems cannot be optimized in a
distributed manner. Establishing an alternate framework, the
metrics obtained are converted into new composite metrics, which
satisfy the optimality and convergence requirements for
implementation in distributed environments. The analysis shows that
the running time of the proposed distributed algorithm is bounded
by a polynomial.
Subjects/Keywords: Multihop communications; Outage probability; Routing metric; Routing algorithm; Power allocation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Babaee, R. (2010). Routing Strategies for Multihop Wireless Relaying
Networks. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/w37637670
Chicago Manual of Style (16th Edition):
Babaee, Ramin. “Routing Strategies for Multihop Wireless Relaying
Networks.” 2010. Masters Thesis, University of Alberta. Accessed December 11, 2019.
https://era.library.ualberta.ca/files/w37637670.
MLA Handbook (7th Edition):
Babaee, Ramin. “Routing Strategies for Multihop Wireless Relaying
Networks.” 2010. Web. 11 Dec 2019.
Vancouver:
Babaee R. Routing Strategies for Multihop Wireless Relaying
Networks. [Internet] [Masters thesis]. University of Alberta; 2010. [cited 2019 Dec 11].
Available from: https://era.library.ualberta.ca/files/w37637670.
Council of Science Editors:
Babaee R. Routing Strategies for Multihop Wireless Relaying
Networks. [Masters Thesis]. University of Alberta; 2010. Available from: https://era.library.ualberta.ca/files/w37637670

University of Alberta
4.
Hao, Yichen.
Energy Efficient Relay Network Design Using Power-Normalized
SNR.
Degree: MS, Department of Electrical and Computer
Engineering, 2013, University of Alberta
URL: https://era.library.ualberta.ca/files/pn89d744n
► Relay network designs have been widely studied in recent years. It is known that cooperative relay network can achieve cooperative diversity with the help of…
(more)
▼ Relay network designs have been widely studied in
recent years. It is known that cooperative relay network can
achieve cooperative diversity with the help of relays and improve
the data rate and/or the reliability of the network. On the other
hand, green communication design has also attracted significant
attention due to the drastic increase in energy consumption. We are
going to investigate green communication designs in relay network
in our work. In this thesis, we adopt a novel efficiency measure,
the power-normalized received signal to noise ratio (PN-SNR) in
relay network design for several scenarios and analyze the
performance of the proposed designs. In single-relay network and
multi-relay network with a sum relay power constraint, the PNSNR
maximization problem is formulated and solved. In multi-relay
network with individual power constraint on each relay, we
investigate both the basic PN-SNR maximization problem and the
quality of service (QoS)-constrained PN-SNR maximization problem.
Performance of the proposed designs is compared with the fixed
relay power scheme and the SNR-maximization scheme analytically and
numerically via simulation. Our results show that with the same
average relay transmit power, the PN-SNR maximizing scheme is
superior to the fixed relay power scheme not only in the PN-SNR but
also in the outage probability for both single and multi-relay
networks. Compared with SNR-maximizing scheme, it is significantly
superior in PN-SNR with moderate degradation in outage probability.
Our results reveal the potential of PN-SNR as efficiency measure in
relay network design.
Subjects/Keywords: Outage probability; Efficiency; Relay network; Power-normalized SNR; Power control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hao, Y. (2013). Energy Efficient Relay Network Design Using Power-Normalized
SNR. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/pn89d744n
Chicago Manual of Style (16th Edition):
Hao, Yichen. “Energy Efficient Relay Network Design Using Power-Normalized
SNR.” 2013. Masters Thesis, University of Alberta. Accessed December 11, 2019.
https://era.library.ualberta.ca/files/pn89d744n.
MLA Handbook (7th Edition):
Hao, Yichen. “Energy Efficient Relay Network Design Using Power-Normalized
SNR.” 2013. Web. 11 Dec 2019.
Vancouver:
Hao Y. Energy Efficient Relay Network Design Using Power-Normalized
SNR. [Internet] [Masters thesis]. University of Alberta; 2013. [cited 2019 Dec 11].
Available from: https://era.library.ualberta.ca/files/pn89d744n.
Council of Science Editors:
Hao Y. Energy Efficient Relay Network Design Using Power-Normalized
SNR. [Masters Thesis]. University of Alberta; 2013. Available from: https://era.library.ualberta.ca/files/pn89d744n

Addis Ababa University
5.
Gebremariam, Hailu.
Analysis and Evaluation of Diversity-Multiplexing Tradeoff for Multiple-Antenna systems in Ultra Wideband (UWB-MAS) and Rake Receiver
.
Degree: 2013, Addis Ababa University
URL: http://etd.aau.edu.et/dspace/handle/123456789/4706
► Ultra wide-band (UWB) systems have recently attracted much research interest owing to their appealing features in short-range wireless communications. These features include high data rates,…
(more)
▼ Ultra wide-band (UWB) systems have recently attracted much research interest owing to their appealing features in short-range wireless communications. These features include high data rates, low power consumption, multiple access communications, and precise positioning capabilities.On the other hand, multiple antenna systems (MAS) and space-time coding (STC) techniques, such as space time block coding (STBC) are well known for their great potential to play a significant role in the design of the next- generation broadband wireless communications. Multiple-Input Multiple-Output (MIMO) system extends the link reliability (spatial diversity (SD)) and increase throughput,(spatial multiplexing (SM)).However, there is a fundamental tradeoff(DMT) between how much of each type of gain in any coding scheme can extract.
In this thesis the approach for multi-antenna system is to obtain tradeoff between SD and SM gains for UWB technology. Atheoretical analysis is conducted to enlighten the DMTfor UWB-MAS (UWB- MISO/SIMO) and therefore; performance enhancements provided by the proposed scheme compared to the classic single link scheme is evaluatedat finite signal-to-noise ratios (SNRs).The tradeoff curves provide a characterization of achievable SD and SM for a given space-time code at SNR’s encountered in practice. A Rake receiver is employed that captures energy from sequences transmitted from N transmit antennas at M receive antennas in a subset of the resolvable multipath components. Exact diversity gain expressions are determined for orthogonal space–time block codes (OSTBC). It is shown that the asymptotical diversity gain has an infinite valueeven with single-antenna systems and the multi-antenna techniques can be very beneficial in the practical range of signal-to-noise ratios. Comparisons are also provided with DMT results in the literature and found thatcodes that are not optimal over the Rayleigh fading channels are also not optimal over the UWB channels.
Advisors/Committee Members: Dr.-Ing Getahun Mokuria (advisor).
Subjects/Keywords: DM;
DMT;
Finite signal-to-noise ratio (SNR);
outage probability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gebremariam, H. (2013). Analysis and Evaluation of Diversity-Multiplexing Tradeoff for Multiple-Antenna systems in Ultra Wideband (UWB-MAS) and Rake Receiver
. (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/4706
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Gebremariam, Hailu. “Analysis and Evaluation of Diversity-Multiplexing Tradeoff for Multiple-Antenna systems in Ultra Wideband (UWB-MAS) and Rake Receiver
.” 2013. Thesis, Addis Ababa University. Accessed December 11, 2019.
http://etd.aau.edu.et/dspace/handle/123456789/4706.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Gebremariam, Hailu. “Analysis and Evaluation of Diversity-Multiplexing Tradeoff for Multiple-Antenna systems in Ultra Wideband (UWB-MAS) and Rake Receiver
.” 2013. Web. 11 Dec 2019.
Vancouver:
Gebremariam H. Analysis and Evaluation of Diversity-Multiplexing Tradeoff for Multiple-Antenna systems in Ultra Wideband (UWB-MAS) and Rake Receiver
. [Internet] [Thesis]. Addis Ababa University; 2013. [cited 2019 Dec 11].
Available from: http://etd.aau.edu.et/dspace/handle/123456789/4706.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Gebremariam H. Analysis and Evaluation of Diversity-Multiplexing Tradeoff for Multiple-Antenna systems in Ultra Wideband (UWB-MAS) and Rake Receiver
. [Thesis]. Addis Ababa University; 2013. Available from: http://etd.aau.edu.et/dspace/handle/123456789/4706
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU
6.
Huang, Tzu-Yu.
Outage Probability Analysis for Distributed Antenna Systems in Composite Fading Channels.
Degree: Master, Communications Engineering, 2011, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-155432
► A distributed antenna system (DAS) with inter-cell interference (ICI) in composite fading channel, where multipath and shadowing effect simultaneously exist, is considered in this thesis.…
(more)
▼ A distributed antenna system (DAS) with inter-cell interference (ICI) in composite fading channel, where multipath and shadowing effect simultaneously exist, is considered in this thesis. How to properly choose a set of remote antennas (RAs) to provide spatial diversity as well as enhance the signal quality and transmission rate is the core concept in this work. Some approximation schemes are utilized to derive the closed form of statistical distributions for both the signal to interference ratio (SIR) and
outage probability. According to these approximations and the position of mobile station, we can partition the service area into several different cooperative regions. Simulation results show that the derived approximations are very similar to the experiment results.
Advisors/Committee Members: Char-Dir Chung (chair), Yu-Te Su (chair), Chih-Peng Li (committee member), Chin-Liang Wang (chair), Jyh-Horng Wen (chair).
Subjects/Keywords: distributed antenna systems; signal to interference ratio; outage probability; composite fading
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Huang, T. (2011). Outage Probability Analysis for Distributed Antenna Systems in Composite Fading Channels. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-155432
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Huang, Tzu-Yu. “Outage Probability Analysis for Distributed Antenna Systems in Composite Fading Channels.” 2011. Thesis, NSYSU. Accessed December 11, 2019.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-155432.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Huang, Tzu-Yu. “Outage Probability Analysis for Distributed Antenna Systems in Composite Fading Channels.” 2011. Web. 11 Dec 2019.
Vancouver:
Huang T. Outage Probability Analysis for Distributed Antenna Systems in Composite Fading Channels. [Internet] [Thesis]. NSYSU; 2011. [cited 2019 Dec 11].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-155432.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Huang T. Outage Probability Analysis for Distributed Antenna Systems in Composite Fading Channels. [Thesis]. NSYSU; 2011. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-155432
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester
7.
Almelah, Hisham Bashir.
DESIGN AND ANALYSIS OF NEXT GENERATION MIMO
NETWORKS.
Degree: 2017, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:312593
► Spectral efficiency is one of the most important measures of the performance of wireless communication systems owing to scarcity and cost of the radio spectrum.…
(more)
▼ Spectral efficiency is one of the most important
measures of the performance of wireless communication systems owing
to scarcity and cost of the radio spectrum. The increase in
spectral efficiency provides higher data rates to the user, lower
network cost to the operator, coverage extension and higher service
reliability as well. Intercell interference due to frequency reuse
is one of the key impairments in wireless systems. Multiple-input
multiple-output (MIMO) technique has been developed to enhance the
desired signal power (and hence mitigating the effects of intercell
interference) and with employing simple linear signal processing
technique, can strongly mitigate the interference resulting from
co-channel users. This technique is mainly used to achieve spatial
diversity for boosting the communication link reliability by
combating fading, and providing spatial multiplexing to increase
data rates without extra bandwidth by exploiting multipath.
Distributed antenna system (DAS) has recently gained substantial
interest due to its ability to reduce transmitted power thereby
lowering the out-of-cell interference effects, maximise the
coverage and improve the spectral efficiency. The combination of
MIMO techniques with DAS, so-called distributed MIMO (D-MIMO)
systems, is now being exploited and largely succeeded to fulfil the
services of the fourth generation (4G) wireless systems. Very
recently, one of crucial significance approach to reducing the
radiated power and improving spectral efficiency to cope with fifth
generation (5G) wireless systems is the use of large-scale MIMO
(also referred to as massive MIMO) technology, which utilizes a
large number of antennas, i.e., tens to hundreds, typically at the
base station (BS) side. Presently, in the light of the rapid
evolution of wireless systems into 5G, the integration of wireless
power transfer (WPT) with newly wireless systems has seen a great
deal of attention as a potential solution for powering
energy-constrained wireless systems, especially with shortening
communication links by emerging new technologies, e.g., D-MIMO and
massive MIMO. This thesis is devoted to investigating and comparing
the performance of three different MIMO systems. More specifically,
the thesis focuses on analysing the spectral efficiency of a
comprehensive model of self-powered MU-MIMO systems employing
linear ZF technique at the BS for both perfect and imperfect
channel state information (CSI) cases. The results demonstrate the
impact of practical channel impairments, e.g., spatial correlation,
shadowing and co-channel interference (CCI), and system parameters,
e.g., the number of BS and user antennas, signal to noise ratio
(SNR) and channel estimation error, on the spectral efficiency of
the system. Besides, from a spectral efficiency perspective, a
proposed model of a combination of MIMO and massive MIMO
technologies with DAS in the presence of linear receivers at the
processing unit (PU) is considered and compared to a centralised
MIMO (CMIMO) system. The obtained results provide a…
Advisors/Committee Members: ALSUSA, EMAD EA, Hamdi, Khairi, Alsusa, Emad.
Subjects/Keywords: Spectral efficiency; outage probability; MU-MIMO; D-MIMO; enegy harvestinga
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Almelah, H. B. (2017). DESIGN AND ANALYSIS OF NEXT GENERATION MIMO
NETWORKS. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:312593
Chicago Manual of Style (16th Edition):
Almelah, Hisham Bashir. “DESIGN AND ANALYSIS OF NEXT GENERATION MIMO
NETWORKS.” 2017. Doctoral Dissertation, University of Manchester. Accessed December 11, 2019.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:312593.
MLA Handbook (7th Edition):
Almelah, Hisham Bashir. “DESIGN AND ANALYSIS OF NEXT GENERATION MIMO
NETWORKS.” 2017. Web. 11 Dec 2019.
Vancouver:
Almelah HB. DESIGN AND ANALYSIS OF NEXT GENERATION MIMO
NETWORKS. [Internet] [Doctoral dissertation]. University of Manchester; 2017. [cited 2019 Dec 11].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:312593.
Council of Science Editors:
Almelah HB. DESIGN AND ANALYSIS OF NEXT GENERATION MIMO
NETWORKS. [Doctoral Dissertation]. University of Manchester; 2017. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:312593
8.
Siddiqui, Sohaib Ahmed.
Adaptive Modulation for Dual-Hop Amplify-and-Forward Relaying Networks with Partial Relay Selection under Co-Channel Interference.
Degree: 2013, , School of Engineering
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3037
► A new era of wireless communications combats with many challenges, including the performance issues and the demand of higher data rate. Upcoming generations of…
(more)
▼ A new era of wireless communications combats with many challenges, including the performance issues and the demand of higher data rate. Upcoming generations of wireless communications will bear the resemblance in terms of same issues. The main goal of engineers and developers is to advance the algorithms and techniques to provide a better quality of service (QoS) and also guarantee the higher data rates.This thesis investigates the performance of dual–hop amplify– and–forward (AF) relaying networks using cooperative diversity technique with co–channel interference at the relay. It is assumed that the relays operate in a limited interference environment over Rayleigh fading channels. The performance of the relaying network in terms of bit error rate (BER) depends on the number of relays between source and destination. However, the system insures better performance by using adaptive modulation in terms of spectral efficiency. The investigation is done in terms of signal–to–interference–noise– ratio (SINR), BER, outage probability and spectral efficiency. The relays are under the influence of non–identical independent distributed interferences. Channel state information at the sender end is instantaneous and partial, based on the best relay being selected for the communication.
Subjects/Keywords: Amplify-and-forward; BER; Outage Probability; SNR; Spectral Efficiency
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Siddiqui, S. A. (2013). Adaptive Modulation for Dual-Hop Amplify-and-Forward Relaying Networks with Partial Relay Selection under Co-Channel Interference. (Thesis). , School of Engineering. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3037
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Siddiqui, Sohaib Ahmed. “Adaptive Modulation for Dual-Hop Amplify-and-Forward Relaying Networks with Partial Relay Selection under Co-Channel Interference.” 2013. Thesis, , School of Engineering. Accessed December 11, 2019.
http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3037.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Siddiqui, Sohaib Ahmed. “Adaptive Modulation for Dual-Hop Amplify-and-Forward Relaying Networks with Partial Relay Selection under Co-Channel Interference.” 2013. Web. 11 Dec 2019.
Vancouver:
Siddiqui SA. Adaptive Modulation for Dual-Hop Amplify-and-Forward Relaying Networks with Partial Relay Selection under Co-Channel Interference. [Internet] [Thesis]. , School of Engineering; 2013. [cited 2019 Dec 11].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3037.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Siddiqui SA. Adaptive Modulation for Dual-Hop Amplify-and-Forward Relaying Networks with Partial Relay Selection under Co-Channel Interference. [Thesis]. , School of Engineering; 2013. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3037
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
9.
Advaita, Advaita.
Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays.
Degree: 2016, , Department of Applied Signal Processing
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13643
► With the rapid growth of wireless communications, the demand for the various multimedia services is increasing day by day leading to a deficit in…
(more)
▼ With the rapid growth of wireless communications, the demand for the various multimedia services is increasing day by day leading to a deficit in the frequency spectrum resources. To overcome this problem, the concept of cognitive radio technology has been proposed which allows the unlicensed secondary user (SU) to access the licensed spectrum of the primary user (PU), thus improving the spectrum utilization. Cooperative communications is another emerging technology which is capable of overcoming many limitations in wireless systems by increasing reliability and coverage. The transmit and receive diversity techniques such as orthogonal space–time block codes (OSTBCs) and selection combining (SC) in multiple-input multiple-output (MIMO) cognitive amplify and forward relay networks help to reduce the effects of fading, increase reliability and extend radio coverage. In this thesis, we consider a MIMO cognitive cooperative radio network (CCRN) with multiple relays. The protocol used at the relays is an amplify and forward protocol. At the receiver, the SC technique is applied to combine the signals. Analytical expressions for the probability density function (PDF) and cumulative distribution function (CDF) of the signal-to-noise ratio (SNR) are derived. On this basis, the performance in terms of outage probability is obtained. Mathematica has been used to generate numerical results from the analytical expressions. The system model is simulated in MATLAB to verify the numerical results. The performance analysis of the system model is hence done in terms of outage probability.
Subjects/Keywords: Cognitive radio; Cooperative communications; Space time coding; MIMO systems; Outage probability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Advaita, A. (2016). Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays. (Thesis). , Department of Applied Signal Processing. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13643
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Advaita, Advaita. “Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays.” 2016. Thesis, , Department of Applied Signal Processing. Accessed December 11, 2019.
http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13643.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Advaita, Advaita. “Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays.” 2016. Web. 11 Dec 2019.
Vancouver:
Advaita A. Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays. [Internet] [Thesis]. , Department of Applied Signal Processing; 2016. [cited 2019 Dec 11].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13643.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Advaita A. Performance Analysis of a MIMO Cognitive Cooperative Radio Network with Multiple AF Relays. [Thesis]. , Department of Applied Signal Processing; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13643
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
10.
Kodide, Alekhya.
Performance Analysis of a Cooperative Communication Network Over κ - μ Shadowed Fading for Different Relaying Protocols.
Degree: 2016, , Department of Applied Signal Processing
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13603
► With the fast development of today’s multimedia services, engineers face a huge hurdle that is, the overwhelming need of highly reliable communication over long…
(more)
▼ With the fast development of today’s multimedia services, engineers face a huge hurdle that is, the overwhelming need of highly reliable communication over long distances. Cooperative communication is a novel concept which tackles this problem effectively. The direct link is assisted by nodes called relays, which also reduce shadowing and pathloss effects in wireless networks. An added advantage of such a cooperative communication network is that when combined with multiple-input multiple-output (MIMO) antenna systems and cognitive radio networks (CRN), the system performance in terms of spectral efficiency and reliability, can be extremely enhanced without any extra power and spectrum.The concept of cooperative communications in MIMO and CRN systems has gained immense interest in the literature. Most of the research works have assumed Rayleigh fading conditions. In this thesis, the performance of cooperative communications with practical constraints of shadowing is studied. Analytical expressions for the outage probability of cooperative networks under different relaying protocols with selection combining are presented under the assumption of κ − µ shadowing fading. Specifically, the relaying protocols that are investigated are incremental relaying, opportunistic relaying, adaptive amplify-and-forward and decode-and-forward. Furthermore, this system model is simulated and the simulation results are compared with the analytical results. Mathematica, a technical computing tool, is used for numerical estimations using stochastic processes and probability theory. Simulation is done in MATLAB.In this thesis, along with the analytical framework for evaluating outage probability for the system is presented. Simulations are performed for various fading parameters and the results closely match with analytical results which validate the derivations.
Subjects/Keywords: Cooperative communications; κ−µ shadowed fading; relaying protocols; outage probability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kodide, A. (2016). Performance Analysis of a Cooperative Communication Network Over κ - μ Shadowed Fading for Different Relaying Protocols. (Thesis). , Department of Applied Signal Processing. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13603
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kodide, Alekhya. “Performance Analysis of a Cooperative Communication Network Over κ - μ Shadowed Fading for Different Relaying Protocols.” 2016. Thesis, , Department of Applied Signal Processing. Accessed December 11, 2019.
http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13603.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kodide, Alekhya. “Performance Analysis of a Cooperative Communication Network Over κ - μ Shadowed Fading for Different Relaying Protocols.” 2016. Web. 11 Dec 2019.
Vancouver:
Kodide A. Performance Analysis of a Cooperative Communication Network Over κ - μ Shadowed Fading for Different Relaying Protocols. [Internet] [Thesis]. , Department of Applied Signal Processing; 2016. [cited 2019 Dec 11].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13603.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kodide A. Performance Analysis of a Cooperative Communication Network Over κ - μ Shadowed Fading for Different Relaying Protocols. [Thesis]. , Department of Applied Signal Processing; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13603
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
11.
ZHU YONGLAN.
Multiple antenna communication over fading channels : Performance limits and cooperative transmission strategies.
Degree: 2008, National University of Singapore
URL: http://scholarbank.nus.edu.sg/handle/10635/12897
Subjects/Keywords: wireless communication; fading; outage probability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
YONGLAN, Z. (2008). Multiple antenna communication over fading channels : Performance limits and cooperative transmission strategies. (Thesis). National University of Singapore. Retrieved from http://scholarbank.nus.edu.sg/handle/10635/12897
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
YONGLAN, ZHU. “Multiple antenna communication over fading channels : Performance limits and cooperative transmission strategies.” 2008. Thesis, National University of Singapore. Accessed December 11, 2019.
http://scholarbank.nus.edu.sg/handle/10635/12897.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
YONGLAN, ZHU. “Multiple antenna communication over fading channels : Performance limits and cooperative transmission strategies.” 2008. Web. 11 Dec 2019.
Vancouver:
YONGLAN Z. Multiple antenna communication over fading channels : Performance limits and cooperative transmission strategies. [Internet] [Thesis]. National University of Singapore; 2008. [cited 2019 Dec 11].
Available from: http://scholarbank.nus.edu.sg/handle/10635/12897.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
YONGLAN Z. Multiple antenna communication over fading channels : Performance limits and cooperative transmission strategies. [Thesis]. National University of Singapore; 2008. Available from: http://scholarbank.nus.edu.sg/handle/10635/12897
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

West Virginia University
12.
Whetzel, Kyle Gordon.
Complexity awar C-RAN scheduling for LDPC codes over BEC.
Degree: MS, Lane Department of Computer Science and Electrical Engineering, 2017, West Virginia University
URL: https://researchrepository.wvu.edu/etd/3974
► Effective transmission of data over a noisy wireless channel is a vital part of today's high speed technology driven society. In a wireless cell…
(more)
▼ Effective transmission of data over a noisy wireless channel is a vital part of today's high speed technology driven society. In a wireless cell network, information is sent from mobile users to base stations. The information being transmitted is protected by error-control codes. In a conventional architecture the signal processing, including error-control decoding, is performed locally at each base station. Recently, a new architecture has emerged called Centralized Radio Access Network (C-RAN), which involves the centralized processing of the signals in a computing cloud. Using a computing cloud allows computational resources to be pooled, which improves utilization and efficiency. When the computational resources are finite and when the computational load varies over time, then there is a chance that the load exceeds the available resources. This situation creates a so-called computational
outage, which has characteristics that are similar to outages caused by channel fading or interference. In this report, the computational complexity is quantified for a common class of error-correcting codes known as low-density parity check (LDPC) codes. To make the analysis tractable, a binary erasure channel is assumed. The concept of density evolution is used to obtain the complexity as a function of the code design parameters and the signal-to-interference-plus-noise ratio (SINR) of the channel. The analysis shows that there is a trade-off in that aggressively signaling at a high data rate causes high computational demands, while conservatively backing off on the rate can dramatically reduce the computational demand. Motivated by this trade-off, a scheduling algorithm is developed that balances the demands for high throughput and low computational
outage rates.
Advisors/Committee Members: Matthew C. Valenti, Daryls S. Reynolds, Brian Woerner.
Subjects/Keywords: Computational-outage probability; Tanner Graphs; finite-length; error rates
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Whetzel, K. G. (2017). Complexity awar C-RAN scheduling for LDPC codes over BEC. (Thesis). West Virginia University. Retrieved from https://researchrepository.wvu.edu/etd/3974
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Whetzel, Kyle Gordon. “Complexity awar C-RAN scheduling for LDPC codes over BEC.” 2017. Thesis, West Virginia University. Accessed December 11, 2019.
https://researchrepository.wvu.edu/etd/3974.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Whetzel, Kyle Gordon. “Complexity awar C-RAN scheduling for LDPC codes over BEC.” 2017. Web. 11 Dec 2019.
Vancouver:
Whetzel KG. Complexity awar C-RAN scheduling for LDPC codes over BEC. [Internet] [Thesis]. West Virginia University; 2017. [cited 2019 Dec 11].
Available from: https://researchrepository.wvu.edu/etd/3974.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Whetzel KG. Complexity awar C-RAN scheduling for LDPC codes over BEC. [Thesis]. West Virginia University; 2017. Available from: https://researchrepository.wvu.edu/etd/3974
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Australian National University
13.
He, Biao.
Wireless Physical Layer Security: Towards Practical Assumptions and Requirements
.
Degree: 2016, Australian National University
URL: http://hdl.handle.net/1885/104995
► The current research on physical layer security is far from implementations in practical networks, arguably due to impractical assumptions in the literature and the limited…
(more)
▼ The current research on physical layer security is far from
implementations in practical networks, arguably due to
impractical assumptions in the literature and the limited
applicability of physical layer security. Aiming to reduce the
gap between theory and practice, this thesis focuses on wireless
physical layer security towards practical assumptions and
requirements.
In the first half of the thesis, we reduce the dependence of
physical layer security on impractical assumptions. The secrecy
enhancements and analysis based on impractical assumptions cannot
lead to any true guarantee of secrecy in practical networks. The
current study of physical layer security was often based on the
idealized assumption of perfect channel knowledge on both
legitimate users and eavesdroppers. We study the impact of
channel estimation errors on secure transmission designs. We
investigate the practical scenarios where both the transmitter
and the receiver have imperfect channel state information (CSI).
Our results show how the optimal transmission design and the
achievable throughput vary with the amount of knowledge on the
eavesdropper's channel. Apart from the assumption of perfect CSI,
the analysis of physical layer security often ideally assumed the
number of eavesdropper antennas to be known. We develop an
innovative approach to study secure communication systems without
knowing the number of eavesdropper antennas by introducing the
concept of spatial constraint into physical layer security. That
is, the eavesdropper is assumed to have a limited spatial region
to place (possibly an infinite number of) antennas. We show that
a non-zero secrecy rate is achievable with the help of a friendly
jammer, even if the eavesdropper places an infinite number of
antennas in its spatial region.
In the second half of the thesis, we improve the applicability of
physical layer security. The current physical layer security
techniques to achieve confidential broadcasting were limited to
application in single-cell systems. The primary challenge to
achieve confidential broadcasting in the multi-cell network is to
deal with not only the inter-cell but also the intra-cell
information leakage and interference. To tackle this challenge,
we design linear precoders performing confidential broadcasting
in multi-cell networks. We optimize the precoder designs to
maximize the secrecy sum rate with based on the large-system
analysis. Finally, we improve the applicability of physical layer
security from a fundamental aspect. The analysis of physical
layer security based on the existing secrecy metric was often not
applicable in practical networks. We propose new metrics for
evaluating the secrecy of transmissions over fading channels to
address the practical limitations of using existing secrecy
metrics for such evaluations.…
Subjects/Keywords: physical layer security;
wireless communications;
secrecy outage probability;
secrecy capacity
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
He, B. (2016). Wireless Physical Layer Security: Towards Practical Assumptions and Requirements
. (Thesis). Australian National University. Retrieved from http://hdl.handle.net/1885/104995
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
He, Biao. “Wireless Physical Layer Security: Towards Practical Assumptions and Requirements
.” 2016. Thesis, Australian National University. Accessed December 11, 2019.
http://hdl.handle.net/1885/104995.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
He, Biao. “Wireless Physical Layer Security: Towards Practical Assumptions and Requirements
.” 2016. Web. 11 Dec 2019.
Vancouver:
He B. Wireless Physical Layer Security: Towards Practical Assumptions and Requirements
. [Internet] [Thesis]. Australian National University; 2016. [cited 2019 Dec 11].
Available from: http://hdl.handle.net/1885/104995.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
He B. Wireless Physical Layer Security: Towards Practical Assumptions and Requirements
. [Thesis]. Australian National University; 2016. Available from: http://hdl.handle.net/1885/104995
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester
14.
Almelah, Hisham Bashir.
Design and analysis of next generation MIMO networks.
Degree: PhD, 2018, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/design-and-analysis-of-next-generation-mimo-networks(43d00dbb-5b2d-478f-b0dc-eb0503c5167a).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.734264
► Spectral efficiency is one of the most important measures of the performance of wireless communication systems owing to scarcity and cost of the radio spectrum.…
(more)
▼ Spectral efficiency is one of the most important measures of the performance of wireless communication systems owing to scarcity and cost of the radio spectrum. The increase in spectral efficiency provides higher data rates to the user, lower network cost to the operator, coverage extension and higher service reliability as well. Intercell interference due to frequency reuse is one of the key impairments in wireless systems. Multiple-input multiple-output (MIMO) technique has been developed to enhance the desired signal power (and hence mitigating the effects of intercell interference) and with employing simple linear signal processing technique, can strongly mitigate the interference resulting from co-channel users. This technique is mainly used to achieve spatial diversity for boosting the communication link reliability by combating fading, and providing spatial multiplexing to increase data rates without extra bandwidth by exploiting multipath. Distributed antenna system (DAS) has recently gained substantial interest due to its ability to reduce transmitted power thereby lowering the out-of-cell interference effects, maximise the coverage and improve the spectral efficiency. The combination of MIMO techniques with DAS, so-called distributed MIMO (D-MIMO) systems, is now being exploited and largely succeeded to fulfil the services of the fourth generation (4G) wireless systems. Very recently, one of crucial significance approach to reducing the radiated power and improving spectral efficiency to cope with fifth generation (5G) wireless systems is the use of large-scale MIMO (also referred to as massive MIMO) technology, which utilizes a large number of antennas, i.e., tens to hundreds, typically at the base station (BS) side. Presently, in the light of the rapid evolution of wireless systems into 5G, the integration of wireless power transfer (WPT) with newly wireless systems has seen a great deal of attention as a potential solution for powering energy-constrained wireless systems, especially with shortening communication links by emerging new technologies, e.g., D-MIMO and massive MIMO. This thesis is devoted to investigating and comparing the performance of three different MIMO systems. More specifically, the thesis focuses on analysing the spectral efficiency of a comprehensive model of self-powered MU-MIMO systems employing linear ZF technique at the BS for both perfect and imperfect channel state information (CSI) cases. The results demonstrate the impact of practical channel impairments, e.g., spatial correlation, shadowing and co-channel interference (CCI), and system parameters, e.g., the number of BS and user antennas, signal to noise ratio (SNR) and channel estimation error, on the spectral efficiency of the system. Besides, from a spectral efficiency perspective, a proposed model of a combination of MIMO and massive MIMO technologies with DAS in the presence of linear receivers at the processing unit (PU) is considered and compared to a centralised MIMO (CMIMO) system. The obtained results provide a…
Subjects/Keywords: enegy harvestinga; Spectral efficiency; outage probability; MU-MIMO; D-MIMO
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Almelah, H. B. (2018). Design and analysis of next generation MIMO networks. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/design-and-analysis-of-next-generation-mimo-networks(43d00dbb-5b2d-478f-b0dc-eb0503c5167a).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.734264
Chicago Manual of Style (16th Edition):
Almelah, Hisham Bashir. “Design and analysis of next generation MIMO networks.” 2018. Doctoral Dissertation, University of Manchester. Accessed December 11, 2019.
https://www.research.manchester.ac.uk/portal/en/theses/design-and-analysis-of-next-generation-mimo-networks(43d00dbb-5b2d-478f-b0dc-eb0503c5167a).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.734264.
MLA Handbook (7th Edition):
Almelah, Hisham Bashir. “Design and analysis of next generation MIMO networks.” 2018. Web. 11 Dec 2019.
Vancouver:
Almelah HB. Design and analysis of next generation MIMO networks. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2019 Dec 11].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/design-and-analysis-of-next-generation-mimo-networks(43d00dbb-5b2d-478f-b0dc-eb0503c5167a).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.734264.
Council of Science Editors:
Almelah HB. Design and analysis of next generation MIMO networks. [Doctoral Dissertation]. University of Manchester; 2018. Available from: https://www.research.manchester.ac.uk/portal/en/theses/design-and-analysis-of-next-generation-mimo-networks(43d00dbb-5b2d-478f-b0dc-eb0503c5167a).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.734264

University of Alberta
15.
Soliman, Samy Soliman Shokry Botros.
Probabilistic and Transform Analyses of Amplify-And-Forward
Wireless Relaying.
Degree: PhD, Department of Electrical and Computer
Engineering, 2014, University of Alberta
URL: https://era.library.ualberta.ca/files/gq67js16x
► Wireless cooperative networks have recently attracted the attention of many researchers as well as industry because such networks promise large diversity gains and increased capacity…
(more)
▼ Wireless cooperative networks have recently attracted
the attention of many researchers as well as industry because such
networks promise large diversity gains and increased capacity
compared to other wireless communication systems. Accurate
performance analysis of wireless cooperative systems is now
important, since it enables the design of wireless communication
systems with enhanced performance. The thesis focuses on two main
categories of systems: dual-hop amplify-and-forward (AF) relaying
systems and multihop AF relaying systems. For dual-hop AF systems,
general probabilistic analysis is developed to obtain novel, exact
analytical expressions for the probability density function (PDF)
and the cumulative distribution function (CDF) of the instantaneous
end-to-end signal-to-noise ratio (SNR) of variable gain AF relaying
systems operating over Rayleigh, Nakagami- extit{m} and Rician
fading channels, as well as asymmetric systems operating over mixed
Nakagami- extit{m} and Rician fading links. Performance metrics,
such as the average symbol error probability, outage probability
and ergodic capacity, are calculated using the derived PDF and CDF
expressions. Dual-hop AF systems under adaptive power transmission
are also studied and closed-form expressions for the ergodic
capacity of such systems are obtained. Dual-hop AF systems with
relay selection are also analyzed and various techniques of relay
selection are considered. This probabilistic analysis permits the
comparison of dual-hop AF systems with different relay selection
criteria, and leads to the factors that should be considered in
designing such systems. For multihop AF systems, the generalized
transformed characteristic function (GTCF) methods are proposed.
The GTCF methods are new transform methods that constitute a
general framework for exact analysis of generic multihop
cooperative relaying systems. This framework is valid for any
modulation scheme, any fading channel distribution and any number
of relays. The GTCF method is used in the thesis to obtain exact
solutions for the ergodic capacity, outage probability and the
average symbol error probability of multihop AF relaying systems. A
strength of the GTCF approach is that it can be used with tractable
computational effort. The thesis shows the cases where the strength
of the GTCF method is paramount, and identifies as well the cases
where the use of the GTCF method is not recommended. The thesis
also studies the effects of the numbers of hops, as well as the
parameters of the fading channels on the system performance in
multihop AF relaying. The GTCF methods are also used to analyze
multi-branch multihop AF systems, obtain exact performance metrics
of such systems and study the effects of the numbers of branches as
well as the numbers of relays per branch on performance metrics of
these systems. Finally, dual-hop AF systems with relay selection
are compared to multihop AF systems, through studying the
dependence of the performance metrics on the numbers of relays and
the links’ fading parameters. The…
Subjects/Keywords: Wireless Communications; Average Symbol Error Probability; Relaying; Cooperative; Outage Probability; Amplify-and-Forward; Probabilistic Analysis
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Soliman, S. S. S. B. (2014). Probabilistic and Transform Analyses of Amplify-And-Forward
Wireless Relaying. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/gq67js16x
Chicago Manual of Style (16th Edition):
Soliman, Samy Soliman Shokry Botros. “Probabilistic and Transform Analyses of Amplify-And-Forward
Wireless Relaying.” 2014. Doctoral Dissertation, University of Alberta. Accessed December 11, 2019.
https://era.library.ualberta.ca/files/gq67js16x.
MLA Handbook (7th Edition):
Soliman, Samy Soliman Shokry Botros. “Probabilistic and Transform Analyses of Amplify-And-Forward
Wireless Relaying.” 2014. Web. 11 Dec 2019.
Vancouver:
Soliman SSSB. Probabilistic and Transform Analyses of Amplify-And-Forward
Wireless Relaying. [Internet] [Doctoral dissertation]. University of Alberta; 2014. [cited 2019 Dec 11].
Available from: https://era.library.ualberta.ca/files/gq67js16x.
Council of Science Editors:
Soliman SSSB. Probabilistic and Transform Analyses of Amplify-And-Forward
Wireless Relaying. [Doctoral Dissertation]. University of Alberta; 2014. Available from: https://era.library.ualberta.ca/files/gq67js16x

Loughborough University
16.
Ge, Lu.
Distributed space-time coding, including the Golden Code, with application in cooperative networks.
Degree: PhD, 2015, Loughborough University
URL: https://dspace.lboro.ac.uk/2134/17052
;
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647349
► This thesis presents new methodologies to improve performance of wireless cooperative networks using the Golden Code. As a form of space-time coding, the Golden Code…
(more)
▼ This thesis presents new methodologies to improve performance of wireless cooperative networks using the Golden Code. As a form of space-time coding, the Golden Code can achieve diversity-multiplexing tradeoff and the data rate can be twice that of the Alamouti code. In practice, however, asynchronism between relay nodes may reduce performance and channel quality can be degraded from certain antennas. Firstly, a simple offset transmission scheme, which employs full interference cancellation (FIC) and orthogonal frequency division multiplexing (OFDM), is enhanced through the use of four relay nodes and receiver processing to mitigate asynchronism. Then, the potential reduction in diversity gain due to the dependent channel matrix elements in the distributed Golden Code transmission, and the rate penalty of multihop transmission, are mitigated by relay selection based on two-way transmission. The Golden Code is also implemented in an asynchronous one-way relay network over frequency flat and selective channels, and a simple approach to overcome asynchronism is proposed. In one-way communication with computationally efficient sphere decoding, the maximum of the channel parameter means is shown to achieve the best performance for the relay selection through bit error rate simulations. Secondly, to reduce the cost of hardware when multiple antennas are available in a cooperative network, multi-antenna selection is exploited. In this context, maximum-sum transmit antenna selection is proposed. End-to-end signal-to-noise ratio (SNR) is calculated and outage probability analysis is performed when the links are modelled as Rayleigh fading frequency flat channels. The numerical results support the analysis and for a MIMO system maximum-sum selection is shown to outperform maximum-minimum selection. Additionally, pairwise error probability (PEP) analysis is performed for maximum-sum transmit antenna selection with the Golden Code and the diversity order is obtained. Finally, with the assumption of fibre-connected multiple antennas with finite buffers, multiple-antenna selection is implemented on the basis of maximum-sum antenna selection. Frequency flat Rayleigh fading channels are assumed together with a decode and forward transmission scheme. Outage probability analysis is performed by exploiting the steady-state stationarity of a Markov Chain model.
Subjects/Keywords: Distributed space-time; Golden code; Relay selection; Multi-antenna selection; Outage probability
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ge, L. (2015). Distributed space-time coding, including the Golden Code, with application in cooperative networks. (Doctoral Dissertation). Loughborough University. Retrieved from https://dspace.lboro.ac.uk/2134/17052 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647349
Chicago Manual of Style (16th Edition):
Ge, Lu. “Distributed space-time coding, including the Golden Code, with application in cooperative networks.” 2015. Doctoral Dissertation, Loughborough University. Accessed December 11, 2019.
https://dspace.lboro.ac.uk/2134/17052 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647349.
MLA Handbook (7th Edition):
Ge, Lu. “Distributed space-time coding, including the Golden Code, with application in cooperative networks.” 2015. Web. 11 Dec 2019.
Vancouver:
Ge L. Distributed space-time coding, including the Golden Code, with application in cooperative networks. [Internet] [Doctoral dissertation]. Loughborough University; 2015. [cited 2019 Dec 11].
Available from: https://dspace.lboro.ac.uk/2134/17052 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647349.
Council of Science Editors:
Ge L. Distributed space-time coding, including the Golden Code, with application in cooperative networks. [Doctoral Dissertation]. Loughborough University; 2015. Available from: https://dspace.lboro.ac.uk/2134/17052 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.647349

University of Alberta
17.
Wang, Maolin.
Gauss-Chebyshev Quadratures for Wireless Performance
Analysis.
Degree: MS, Department of Electrical and Computer
Engineering, 2013, University of Alberta
URL: https://era.library.ualberta.ca/files/zg64tm751
► Bit/symbol error rate and outage probability are common performance metrics used to quantify the reliability of wireless communication systems. Error rates for a broad class…
(more)
▼ Bit/symbol error rate and outage probability are
common performance metrics used to quantify the reliability of
wireless communication systems. Error rates for a broad class of
digital modulation schemes and outage probability are expressed as
integrals, which often do not have closed-form solutions.
Therefore, accurate and simple approximations to develop insight
are desirable. To achieve this goal, classical Gaussian Chebyshev
quadrature and rational Gaussian Chebyshev quadrature rules are
studied in this thesis. These rules are used to compute symbol
error rates over multipath fading channels and outage caused by
co-channel interference. The accuracy and convergence rate of these
rules are investigated.
Subjects/Keywords: Gauss-Chebyshev Quadrature; Bit/Symbol Error Rate; Wireless Performance Analysis; Outage Probability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Wang, M. (2013). Gauss-Chebyshev Quadratures for Wireless Performance
Analysis. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/zg64tm751
Chicago Manual of Style (16th Edition):
Wang, Maolin. “Gauss-Chebyshev Quadratures for Wireless Performance
Analysis.” 2013. Masters Thesis, University of Alberta. Accessed December 11, 2019.
https://era.library.ualberta.ca/files/zg64tm751.
MLA Handbook (7th Edition):
Wang, Maolin. “Gauss-Chebyshev Quadratures for Wireless Performance
Analysis.” 2013. Web. 11 Dec 2019.
Vancouver:
Wang M. Gauss-Chebyshev Quadratures for Wireless Performance
Analysis. [Internet] [Masters thesis]. University of Alberta; 2013. [cited 2019 Dec 11].
Available from: https://era.library.ualberta.ca/files/zg64tm751.
Council of Science Editors:
Wang M. Gauss-Chebyshev Quadratures for Wireless Performance
Analysis. [Masters Thesis]. University of Alberta; 2013. Available from: https://era.library.ualberta.ca/files/zg64tm751

NSYSU
18.
Li, Sheng-Hung.
Performance Analysis of Relay Selection in Two-Way Relay Networks with Channel Estimation Error.
Degree: Master, Communications Engineering, 2015, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725115-094833
► The impact of channel estimation errors is investigated in two-way relay networks (TWRNs) with two different channel state information (CSI) estimation schemes, namely, cascaded and…
(more)
▼ The impact of channel estimation errors is investigated in two-way relay networks (TWRNs) with two different channel state information (CSI) estimation schemes, namely, cascaded and separate. In the cascaded scheme, the relay node is selected on the basis of the CSI of the individual channels between the source nodes and the relay node. In the separate scheme, relay node selection is based on the CSI of the cascaded channel between the two source nodes. For both estimation schemes, the effect of the CSI estimation error on the
outage probability is examined by Cramer-Rao lower bound. Contrary to previous reports, the source nodes in the TWRN are assumed to yield different estimation errors. Numerical results confirm the validity of the derived expression and indicate that the presence of different estimation errors at the two source nodes can significantly influence the performance of the TWRN.
However, we extend the relay selection problem to non-reciprocal TWRNs. We propose a selection scheme based on the concept of censoring rule, in which each relay node can decide whether the received signal should be forwarded. This method can save a level of transmission power and maintain the diversity gain without gathering all of the CSI between the source nodes and relay nodes at a central node. The effectiveness of the proposed scheme is evident in the simulation results.
Advisors/Committee Members: Chih-Peng Li (committee member), Chin-Liang Wang (chair), Guu-Chang Yang (chair), Char-Dir Chung (chair), Sen-Hung Wang (chair), Yu-Te Su (chair).
Subjects/Keywords: censoring network.; outage probability; amplify-and-forward; two-way relay networks; Channel estimation error
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Li, S. (2015). Performance Analysis of Relay Selection in Two-Way Relay Networks with Channel Estimation Error. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725115-094833
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Li, Sheng-Hung. “Performance Analysis of Relay Selection in Two-Way Relay Networks with Channel Estimation Error.” 2015. Thesis, NSYSU. Accessed December 11, 2019.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725115-094833.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Li, Sheng-Hung. “Performance Analysis of Relay Selection in Two-Way Relay Networks with Channel Estimation Error.” 2015. Web. 11 Dec 2019.
Vancouver:
Li S. Performance Analysis of Relay Selection in Two-Way Relay Networks with Channel Estimation Error. [Internet] [Thesis]. NSYSU; 2015. [cited 2019 Dec 11].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725115-094833.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Li S. Performance Analysis of Relay Selection in Two-Way Relay Networks with Channel Estimation Error. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0725115-094833
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU
19.
Chen, Jian-Ting.
End-to-End Performance Analysis for Amplify-and-Forward Relaying System with Variable Gain.
Degree: Master, Communications Engineering, 2012, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0731112-164348
► Dual-hop transmission system can increase the transmission diversity via the cooperation of transmission nodes and can also overcome the channel fading effectively. This thesis proposes…
(more)
▼ Dual-hop transmission system can increase the transmission diversity via the cooperation of transmission nodes and can also overcome the channel fading effectively. This thesis proposes an
outage probability analysis method for the AF relaying system where multiple antennas are equipped at source node and both the relay node and destination node just carry single antenna. Compare with previous work, the average signal to noise ratio of source to relay and relay to destination links are assumed to be two different variables, therefore we can get a more general performance analysis. We also extend our theoretical analysis to the system where multiple antennas are utilized at destination node. Simulation results are shown to verify the analysis of the proposed schemes in some representative scenarios.
Advisors/Committee Members: Jin-Fu Chang (chair), Szu-Lin Su (chair), Char-Dir Chung (chair), Yu T. Su (chair), Chin-Liang Wang (chair), Chih-Peng Li (committee member).
Subjects/Keywords: multiple antenna; maximum ratio transmission; Amplify-and-forward; dual-hop; outage probability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chen, J. (2012). End-to-End Performance Analysis for Amplify-and-Forward Relaying System with Variable Gain. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0731112-164348
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chen, Jian-Ting. “End-to-End Performance Analysis for Amplify-and-Forward Relaying System with Variable Gain.” 2012. Thesis, NSYSU. Accessed December 11, 2019.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0731112-164348.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chen, Jian-Ting. “End-to-End Performance Analysis for Amplify-and-Forward Relaying System with Variable Gain.” 2012. Web. 11 Dec 2019.
Vancouver:
Chen J. End-to-End Performance Analysis for Amplify-and-Forward Relaying System with Variable Gain. [Internet] [Thesis]. NSYSU; 2012. [cited 2019 Dec 11].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0731112-164348.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chen J. End-to-End Performance Analysis for Amplify-and-Forward Relaying System with Variable Gain. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0731112-164348
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU
20.
Lin, Yean-ping.
Lifetime Maximization in AF Cooperative Networks with Energy-Harvesting Relays.
Degree: Master, Communications Engineering, 2015, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718115-014218
► In this thesis, we consider AF cooperative networks with multiple radio frequency energy-harvesting (RFEH) relays, and investigate power allocation and relay selection strategies to prolong…
(more)
▼ In this thesis, we consider AF cooperative networks with multiple radio frequency energy-harvesting (RFEH) relays, and investigate power allocation and relay selection strategies to prolong the network lifetime since relays are battery-powered with limited energy. Through cooperation among multiple relays, reliability and transmission rate of cooperative networks are enhanced by exploiting spatial diversity. If relays rely on wireline power supplies, implementation cost must increase and mobility is lacked. Therefore, we consider relays apply RFEH technology to harvest energy by transferring ambient RF signal into electrical energy, so that they can be self-sustained. Consequently, the network lifetime can be further prolonged. In this thesis, we investigate relay selection strategies to choose one relay to forward messages while the others perform energy harvesting. Those selection strategies
aim to minimize the loss of energy dissipation, reducing wasted energy and increase the average harvested energy, in order to prolong the network lifetime. In this thesis, we define network lifetime based on the
outage performance of the network. Specifically, if
outage probability of network is lower than a threshold, the system is treated as "well-functioned", and the network lifetime is defined as the longest period in which network is well-functioned. From the expression of
outage probability, network lifetime is related to the residual energy of relays.Compares with existing relay selection strategies which take Channel State Information(CSI),Residual Energy Information(REI), and/or Harvested Energy Information(HEI) into account, we proposed a novel relay selection scheme based on opportunity cost of each choice. Because the proposed scheme properly exploits CSI, REI, and HEI, the proposed scheme outperforms others with stringent
outage requirement. Moreover, since all relay selection strategies require simply local CSI, REI, and HEI, they can be accomplished in a distributed manner through opportunistic carrier sensing without extra overhead.
Advisors/Committee Members: Wei-Ho Chung (chair), Chao-Kai Wen (chair), Tsang-Yi Wang (chair), Wan-Jen Huang (committee member), Fan-Shuo Tseng (chair).
Subjects/Keywords: Relay Selection; Outage Probability; Network Lifetime; Radio Frequency Energy Harvesting; Cooperative Network
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lin, Y. (2015). Lifetime Maximization in AF Cooperative Networks with Energy-Harvesting Relays. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718115-014218
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lin, Yean-ping. “Lifetime Maximization in AF Cooperative Networks with Energy-Harvesting Relays.” 2015. Thesis, NSYSU. Accessed December 11, 2019.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718115-014218.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lin, Yean-ping. “Lifetime Maximization in AF Cooperative Networks with Energy-Harvesting Relays.” 2015. Web. 11 Dec 2019.
Vancouver:
Lin Y. Lifetime Maximization in AF Cooperative Networks with Energy-Harvesting Relays. [Internet] [Thesis]. NSYSU; 2015. [cited 2019 Dec 11].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718115-014218.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lin Y. Lifetime Maximization in AF Cooperative Networks with Energy-Harvesting Relays. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0718115-014218
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU
21.
Song, Hui-Xuan.
Using Relay selection and Power allocation for Cooperative system in Presence of Eavesdroppers.
Degree: Master, Communications Engineering, 2017, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0621117-094936
► In this thesis, a scheme using jamming signal is adopted to improve the physical- layer security of a decode-and- forward cooperated relay network in the…
(more)
▼ In this thesis, a scheme using jamming signal is adopted to improve the physical-
layer security of a decode-and- forward cooperated relay network in the presence of
eavesdroppers. In addition, it is assumed that there is no direct link between the
source and the destination. As a result, the data transmission from the source to the
destination is all through the relay links. Since there exists many relays in the
cooperated network and each relay link has a different channel gain, this thesis
considers an optimization problem, in which the
outage probability of the
cooperated system is minimized by selecting a best relay link. This thesis then
analyzes the
outage probability using the proposed relay selection scheme. Finally,
this thesis then conducts computer simulations to verify the analyzed outrage
probability and confirm the validity of the proposed method.
Advisors/Committee Members: Tsang-Yi Charlie Wang (committee member), Chih-Yu Wen (chair), Chao-Kai Wen (chair), Wan-Jen Huang (chair), Fan-Shuo Tseng (chair).
Subjects/Keywords: outage probability; decode- and-forward; relay selection; cooperated network; physical-layer security
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Song, H. (2017). Using Relay selection and Power allocation for Cooperative system in Presence of Eavesdroppers. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0621117-094936
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Song, Hui-Xuan. “Using Relay selection and Power allocation for Cooperative system in Presence of Eavesdroppers.” 2017. Thesis, NSYSU. Accessed December 11, 2019.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0621117-094936.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Song, Hui-Xuan. “Using Relay selection and Power allocation for Cooperative system in Presence of Eavesdroppers.” 2017. Web. 11 Dec 2019.
Vancouver:
Song H. Using Relay selection and Power allocation for Cooperative system in Presence of Eavesdroppers. [Internet] [Thesis]. NSYSU; 2017. [cited 2019 Dec 11].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0621117-094936.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Song H. Using Relay selection and Power allocation for Cooperative system in Presence of Eavesdroppers. [Thesis]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0621117-094936
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Louisiana State University
22.
Sun, Hui.
Relay Selection Strategies for Multi-hop Cooperative Networks.
Degree: PhD, Electrical and Computer Engineering, 2016, Louisiana State University
URL: etd-05262016-103215
;
https://digitalcommons.lsu.edu/gradschool_dissertations/783
► In this dissertation we consider several relay selection strategies for multi-hop cooperative networks. The relay selection strategies we propose do not require a central controller…
(more)
▼ In this dissertation we consider several relay selection strategies for multi-hop cooperative networks. The relay selection strategies we propose do not require a central controller (CC). Instead, the relay selection is on a hop-by-hop basis. As such, these strategies can be implemented in a distributed manner. Therefore, increasing the number of hops in the network would not increase the complexity or time consumed for the relay selection procedure of each hop. We first investigate the performance of a hop-by-hop relay selection strategy for multi-hop decode-and-forward (DF) cooperative networks. In each relay cluster, relays that successfully receive and decode the message from the previous hop form a decoding set for relaying, and the relay which has the highest signal-to-noise ratio (SNR) link to the next hop is then selected for retransmission. We analyze the performance of this method in terms of end-to-end outage probability, and we derive approximations for the ergodic capacity and the effective ergodic capacity of this strategy. Next we propose a novel hop-by-hop relay selection strategy where the relay in the decoding set with the largest number of ``good'' channels to the next stage is selected for retransmission. We analyze the performance of this method in terms of end-to-end outage probability in the case of perfect and imperfect channel state information (CSI). We also investigate relay selection strategies in underlay spectrum sharing cognitive relay networks. We consider a two-hop DF cognitive relay network with a constraint on the interference to the primary user. The outage probability of the secondary user and the interference probability at the primary user are analyzed under imperfect CSI scenario. Finally we introduce a hop-by-hop relay selection strategy for underlay spectrum sharing multi-hop relay networks. Relay selection in each stage is only based on the CSI in that hop. It is shown that in terms of outage probability, the performance of this method is nearly optimal.
Subjects/Keywords: outage probability; channel state information; decode-and-forward; relay selection; multi-hop cooperative networks
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sun, H. (2016). Relay Selection Strategies for Multi-hop Cooperative Networks. (Doctoral Dissertation). Louisiana State University. Retrieved from etd-05262016-103215 ; https://digitalcommons.lsu.edu/gradschool_dissertations/783
Chicago Manual of Style (16th Edition):
Sun, Hui. “Relay Selection Strategies for Multi-hop Cooperative Networks.” 2016. Doctoral Dissertation, Louisiana State University. Accessed December 11, 2019.
etd-05262016-103215 ; https://digitalcommons.lsu.edu/gradschool_dissertations/783.
MLA Handbook (7th Edition):
Sun, Hui. “Relay Selection Strategies for Multi-hop Cooperative Networks.” 2016. Web. 11 Dec 2019.
Vancouver:
Sun H. Relay Selection Strategies for Multi-hop Cooperative Networks. [Internet] [Doctoral dissertation]. Louisiana State University; 2016. [cited 2019 Dec 11].
Available from: etd-05262016-103215 ; https://digitalcommons.lsu.edu/gradschool_dissertations/783.
Council of Science Editors:
Sun H. Relay Selection Strategies for Multi-hop Cooperative Networks. [Doctoral Dissertation]. Louisiana State University; 2016. Available from: etd-05262016-103215 ; https://digitalcommons.lsu.edu/gradschool_dissertations/783
23.
Ben Cheikh Battikh, Dorra.
Formules de probabilités de coupure pour les réseaux cellulaires : contributions pour les fonctionnalités MIMO, CoMP et de retournement temporel : Outage probability formulas for cellular networks : contributions for MIMO, CoMP and time reversal features.
Degree: Docteur es, Informatique et Réseaux, 2012, Paris, ENST
URL: http://www.theses.fr/2012ENST0031
► L’étude de dimensionnement d’un réseau cellulaire est une phase de conception qui doit permettre de déterminer les performances d’un système dans une configuration donnée. Elle…
(more)
▼ L’étude de dimensionnement d’un réseau cellulaire est une phase de conception qui doit permettre de déterminer les performances d’un système dans une configuration donnée. Elle inclut l’étude de couverture et l’analyse de trafic. De complexes simulations sont possibles pour connaître les paramètres de performances d’un réseau mais seules les études analytiques fournissent des résultats rapides. Par ailleurs, pour faire face à la demande de hauts débits, à la rareté du spectre fréquentiel et à l’impossibilité d’émettre à de plus fortes puissances, de nouvelles techniques de transmissions sont apparues. Nous sommes ainsi passés d’un système classique à une seule antenne à des systèmes à multiple antennes et même à des scénarios de coopération entre stations de base. Dans cette thèse, nous proposons des modèles analytiques pour l’étude des performances, notamment en termes de probabilités de coupure, de ces évolutions des réseaux cellulaires. Dans une première phase, nous considérons des systèmes multicellulaires à une antenne émettrice et une antenne réceptrice (SISO). Nous proposons deux méthodes d’étude de l’impact conjoint de l’affaiblissement de parcours, de l’effet de masque et des évanouissements rapides. Nous étudions, par la suite, un système à large bande utilisant le retournement temporel comme technique de transmission. Dans une deuxième phase, nous considérons des systèmes multicellulaires à antennes multiple à l’émission ou à la réception (MISO/MIMO) implémentant les schémas de diversité Alamouti et de combinaison par rapport maximal (MRC). Ensuite, nous considérons un système multicellulaire multi-utilisateurs à précodage de forçage à zéro (ZFBF).
The implementation of cellular systems have aroused issues related to the design of cellular networks termed to as network dimensioning. It includes the coverage estimation and thetraffic analysis. Simple models and methods are required to reduce the time consumption of these two analysis. At the same time, the growing demand for higher data rates constrained by the scarcity of frequency spectrum, and the requirements in terms of power consumption reduction make the telecommunication community think about new transmission techniques moving from the classical single antenna systems to multiple antenna systems and even the newly envisaged cooperative systems. In this thesis, we provide analytical models to assess the performance of these different cellular network evolutions in terms of outage probabilities. In a first study, we consider multicellular single input single output (SISO) systems. First, we propose two accurate methods to study the joint impact of path-loss, shadowing and fast fading. This system has so far been studied either considering the only impact of path-loss and Rayleigh fading, or considering the same channel model as in our case but providing very complex outage probability expressions. Then, we provide an outage probability expression in a wideband communication context implementing the Time Reversal (TR) transmission technique…
Advisors/Committee Members: Godlewski, Philippe (thesis director), Coupechoux, Marceau (thesis director).
Subjects/Keywords: Réseau cellulaire; MIMO; CoMP; ZFBF; MRT; Cellular network; Outage probability; Time reversal; MRC
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ben Cheikh Battikh, D. (2012). Formules de probabilités de coupure pour les réseaux cellulaires : contributions pour les fonctionnalités MIMO, CoMP et de retournement temporel : Outage probability formulas for cellular networks : contributions for MIMO, CoMP and time reversal features. (Doctoral Dissertation). Paris, ENST. Retrieved from http://www.theses.fr/2012ENST0031
Chicago Manual of Style (16th Edition):
Ben Cheikh Battikh, Dorra. “Formules de probabilités de coupure pour les réseaux cellulaires : contributions pour les fonctionnalités MIMO, CoMP et de retournement temporel : Outage probability formulas for cellular networks : contributions for MIMO, CoMP and time reversal features.” 2012. Doctoral Dissertation, Paris, ENST. Accessed December 11, 2019.
http://www.theses.fr/2012ENST0031.
MLA Handbook (7th Edition):
Ben Cheikh Battikh, Dorra. “Formules de probabilités de coupure pour les réseaux cellulaires : contributions pour les fonctionnalités MIMO, CoMP et de retournement temporel : Outage probability formulas for cellular networks : contributions for MIMO, CoMP and time reversal features.” 2012. Web. 11 Dec 2019.
Vancouver:
Ben Cheikh Battikh D. Formules de probabilités de coupure pour les réseaux cellulaires : contributions pour les fonctionnalités MIMO, CoMP et de retournement temporel : Outage probability formulas for cellular networks : contributions for MIMO, CoMP and time reversal features. [Internet] [Doctoral dissertation]. Paris, ENST; 2012. [cited 2019 Dec 11].
Available from: http://www.theses.fr/2012ENST0031.
Council of Science Editors:
Ben Cheikh Battikh D. Formules de probabilités de coupure pour les réseaux cellulaires : contributions pour les fonctionnalités MIMO, CoMP et de retournement temporel : Outage probability formulas for cellular networks : contributions for MIMO, CoMP and time reversal features. [Doctoral Dissertation]. Paris, ENST; 2012. Available from: http://www.theses.fr/2012ENST0031
24.
Hoang, Le Nam.
On The Performance Of Two-Way Amplify-And-Forward Relay Networks.
Degree: 2010, , School of Engineering
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5192
► The new paradigm of cooperative communications is a promising resolution to carry out MIMO technique. In this thesis work, we study the performance of…
(more)
▼ The new paradigm of cooperative communications is a promising resolution to carry out MIMO technique. In this thesis work, we study the performance of cooperative relay networks in which the transmission from a source to a destination is assisted by one or several relaying nodes employing amplify-and-forward (AF) and decode- and-forward (DF) protocols. The performance of two-way (or bi-directional) AF relay networks, which are proposed to avoid the pre-log factor 1 2 of spectral efficiency, is latter investigated. Specifically, the exact closed-form expressions for symbol error rate (SER), outage probability, and average sum-rate of bi-directional AF relay systems in independent but not identically distributed (i.n.i.d.) Rayleigh fading channels are derived. Our analyses are verified by comparing with the results from Monte-Carlo simulations.
Subjects/Keywords: two-way relay; amplify-and-forward; symbol error rate; average sum-rate; outage probability
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hoang, L. N. (2010). On The Performance Of Two-Way Amplify-And-Forward Relay Networks. (Thesis). , School of Engineering. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5192
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hoang, Le Nam. “On The Performance Of Two-Way Amplify-And-Forward Relay Networks.” 2010. Thesis, , School of Engineering. Accessed December 11, 2019.
http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5192.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hoang, Le Nam. “On The Performance Of Two-Way Amplify-And-Forward Relay Networks.” 2010. Web. 11 Dec 2019.
Vancouver:
Hoang LN. On The Performance Of Two-Way Amplify-And-Forward Relay Networks. [Internet] [Thesis]. , School of Engineering; 2010. [cited 2019 Dec 11].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5192.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hoang LN. On The Performance Of Two-Way Amplify-And-Forward Relay Networks. [Thesis]. , School of Engineering; 2010. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-5192
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Victoria
25.
Ho, Danh Huu.
Power allocation and cell association in cellular networks.
Degree: Department of Electrical and Computer Engineering, 2019, University of Victoria
URL: http://hdl.handle.net/1828/11065
► In this dissertation, power allocation approaches considering path loss, shadowing, and Rayleigh and Nakagami-m fading are proposed. The goal is to improve power consumption, and…
(more)
▼ In this dissertation, power allocation approaches considering path loss, shadowing,
and Rayleigh and Nakagami-m fading are proposed. The goal is to improve power
consumption, and energy and throughput efficiency based on user target signal to interference plus noise ratio (SINR) requirements and an
outage probability threshold.
First, using the moment generating function (MGF), the exact
outage probability
over Rayleigh and Nakagami-m fading channels is derived. Then upper and lower
bounds on the
outage probability are derived using the Weierstrass, Bernoulli and
exponential inequalities. Second, the problem of minimizing the user power
subject
to
outage probability and user target SINR constraints is considered. The corresponding power allocation problems are solved using Perron-Frobenius theory and
geometric programming (GP). A GP problem can be transformed into a nonlinear
convex optimization problem using variable substitution and then solved globally and
efficiently by interior point methods. Then, power allocation problems for throughput
maximization and energy efficiency are proposed. As these problems are in a convex
fractional programming form, parametric transformation is used to convert the original problems into subtractive optimization problems which can be solved iteratively.
Simulation results are presented which show that the proposed approaches are better
than existing schemes in terms of power consumption, throughput, energy efficiency
and
outage probability.
Prioritized cell association and power allocation (CAPA) to solve the load balancing issue in heterogeneous networks (HetNets) is also considered in this dissertation.
A Hetnet is a group of macrocell base stations (MBSs) underlaid by a diverse set
of small cell base stations (SBSs) such as microcells, picocells and femtocells. These
networks are considered to be a good solution to enhance network capacity, improve
network coverage, and reduce power consumption. However, HetNets are limited
by the disparity of power levels in the different tiers. Conventional cell association
approaches cause MBS overloading, SBS underutilization, excessive user interference
and wasted resources. Satisfying priority user (PU) requirements while maximizing
the number of normal users (NUs) has not been considered in existing power allocation algorithms. Two stage CAPA optimization is proposed to address the prioritized
cell association and power allocation problem. The first stage is employed by PUs
and NUs and the second stage is employed by BSs. First, the product of the channel
access likelihood (CAL) and channel gain to interference plus noise ratio (GINR) is considered for PU cell association while network utility is considered for NU cell association. Here, CAL is defined as the reciprocal of the BS load. In CAL and GINR
cell association, PUs are associated with the BSs that provide the maximum product
of CAL and GINR. This implies that PUs connect to BSs with a low number of users
and good channel conditions. NUs are…
Advisors/Committee Members: Gulliver, T. Aaron (supervisor).
Subjects/Keywords: Power allocation; Cell association; Heterogeneous Networks; Cellular Networks; Priority; Outage probability; Energy efficiency; Normalized throughput
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ho, D. H. (2019). Power allocation and cell association in cellular networks. (Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/11065
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ho, Danh Huu. “Power allocation and cell association in cellular networks.” 2019. Thesis, University of Victoria. Accessed December 11, 2019.
http://hdl.handle.net/1828/11065.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ho, Danh Huu. “Power allocation and cell association in cellular networks.” 2019. Web. 11 Dec 2019.
Vancouver:
Ho DH. Power allocation and cell association in cellular networks. [Internet] [Thesis]. University of Victoria; 2019. [cited 2019 Dec 11].
Available from: http://hdl.handle.net/1828/11065.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ho DH. Power allocation and cell association in cellular networks. [Thesis]. University of Victoria; 2019. Available from: http://hdl.handle.net/1828/11065
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Loughborough University
26.
Ge, Lu.
Distributed space-time coding, including the Golden Code, with application in cooperative networks.
Degree: PhD, 2015, Loughborough University
URL: http://hdl.handle.net/2134/17052
► This thesis presents new methodologies to improve performance of wireless cooperative networks using the Golden Code. As a form of space-time coding, the Golden Code…
(more)
▼ This thesis presents new methodologies to improve performance of wireless cooperative networks using the Golden Code. As a form of space-time coding, the Golden Code can achieve diversity-multiplexing tradeoff and the data rate can be twice that of the Alamouti code. In practice, however, asynchronism between relay nodes may reduce performance and channel quality can be degraded from certain antennas. Firstly, a simple offset transmission scheme, which employs full interference cancellation (FIC) and orthogonal frequency division multiplexing (OFDM), is enhanced through the use of four relay nodes and receiver processing to mitigate asynchronism. Then, the potential reduction in diversity gain due to the dependent channel matrix elements in the distributed Golden Code transmission, and the rate penalty of multihop transmission, are mitigated by relay selection based on two-way transmission. The Golden Code is also implemented in an asynchronous one-way relay network over frequency flat and selective channels, and a simple approach to overcome asynchronism is proposed. In one-way communication with computationally efficient sphere decoding, the maximum of the channel parameter means is shown to achieve the best performance for the relay selection through bit error rate simulations. Secondly, to reduce the cost of hardware when multiple antennas are available in a cooperative network, multi-antenna selection is exploited. In this context, maximum-sum transmit antenna selection is proposed. End-to-end signal-to-noise ratio (SNR) is calculated and outage probability analysis is performed when the links are modelled as Rayleigh fading frequency flat channels. The numerical results support the analysis and for a MIMO system maximum-sum selection is shown to outperform maximum-minimum selection. Additionally, pairwise error probability (PEP) analysis is performed for maximum-sum transmit antenna selection with the Golden Code and the diversity order is obtained. Finally, with the assumption of fibre-connected multiple antennas with finite buffers, multiple-antenna selection is implemented on the basis of maximum-sum antenna selection. Frequency flat Rayleigh fading channels are assumed together with a decode and forward transmission scheme. Outage probability analysis is performed by exploiting the steady-state stationarity of a Markov Chain model.
Subjects/Keywords: 621.382; Distributed space-time; Golden code; Relay selection; Multi-antenna selection; Outage probability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ge, L. (2015). Distributed space-time coding, including the Golden Code, with application in cooperative networks. (Doctoral Dissertation). Loughborough University. Retrieved from http://hdl.handle.net/2134/17052
Chicago Manual of Style (16th Edition):
Ge, Lu. “Distributed space-time coding, including the Golden Code, with application in cooperative networks.” 2015. Doctoral Dissertation, Loughborough University. Accessed December 11, 2019.
http://hdl.handle.net/2134/17052.
MLA Handbook (7th Edition):
Ge, Lu. “Distributed space-time coding, including the Golden Code, with application in cooperative networks.” 2015. Web. 11 Dec 2019.
Vancouver:
Ge L. Distributed space-time coding, including the Golden Code, with application in cooperative networks. [Internet] [Doctoral dissertation]. Loughborough University; 2015. [cited 2019 Dec 11].
Available from: http://hdl.handle.net/2134/17052.
Council of Science Editors:
Ge L. Distributed space-time coding, including the Golden Code, with application in cooperative networks. [Doctoral Dissertation]. Loughborough University; 2015. Available from: http://hdl.handle.net/2134/17052
27.
Diego Aguiar Sousa.
AnÃlise de desempenho de sistemas OFDM cooperativos DF com amplificadores de potÃncia nÃo lineares.
Degree: Master, 2013, Universidade Federal do Ceará
URL: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10597
;
► Nos Ãltimos anos, a tÃcnica de multiplexaÃÃo por divisÃo de frequÃncias ortogonais (OFDM, do inglÃs Orthogonal Frequency Division Multiplexing) vem sendo associada a tÃcnicas de…
(more)
▼ Nos Ãltimos anos, a tÃcnica de multiplexaÃÃo por divisÃo de frequÃncias ortogonais (OFDM, do inglÃs Orthogonal Frequency Division Multiplexing) vem sendo associada a tÃcnicas de rÃdio cooperativo. Contudo, ao realizar esta associaÃÃo, à de grande importÃncia que sejam avaliados os efeitos da alta razÃo entre a potÃncia mÃdia e potÃncia de pico (PAPR, do inglÃs Peak-to-Average Power Ratio) no desempenho do sistema, problema bastante conhecido em sistemas OFDM. Esta dissertaÃÃo propÃe uma formulaÃÃo analÃtica para a probabilidade de outage e para a taxa de erro de sÃmbolo (SER, do inglÃs Symbol Error Rate) em um sistema de comunicaÃÃo cooperativo OFDM com um relay utilizando os protocolos de retransmissÃo decodifica-e-encaminha (DF, do inglÃs Decode-and-Forward) fixo e seletivo, considerando os efeitos das nÃo linearidades inseridas por amplificadores de potÃncia (PA, do inglÃs Power Amplifier) na fonte e no relay. No modelo proposto, o receptor considerado explora tanto o sinal recebido diretamente da fonte como aquele proveniente do relay, combinando-os utilizando a tÃcnica de combinaÃÃo de razÃo mÃxima (MRC, do inglÃs Maximum Ratio Combining). Serà apresentado um estudo dos efeitos das nÃo linearidades no sistema, o qual à vÃlido para qualquer tipo de amplificador nÃo linear sem memÃria, verificando seu impacto na ordem de diversidade do sistema e a deterioraÃÃo aplicada ao sinal recebido. SimulaÃÃes computacionais comprovam a validade das expressÃes teÃricas propostas em diversos cenÃrios.
In the lastest years, orthogonal frequency division multiplexing (OFDM) has been widely associated with cooperative radio techniques. In this context, a study about the effects of the high peak-to-average power ratio (PAPR), a well known OFDM problem, has a great relevance. This dissertation proposes an analytical formulation for the outage probability and symbol error rate (SER) in a cooperative OFDM system with one relay using fixed and selective decode-and-forward (DF) retransmission protocols, considering the nonlinear distortions inserted by the source and relay power amplifiers (PA). In the considered model, the receiver exploits the signal received directly from the source as well as the the signal transmitted through the relay using the maximum ratio combing (MRC) technique. The effects of the nonlinearities in the considered system are studied by verifying their impact in the system diversity order and by analysing how much they deteriorate the received signal. The presented analysis applies to any kind of memoryless amplifier. The proposed theoretical expressions are validated by means of computer simulations in different scenarios.
Advisors/Committee Members: Andrà Lima FÃrrer de Almeida.
Subjects/Keywords: TELECOMUNICACOES; TeleinformÃtica; Sistemas de comunicaÃÃo sem fio; OFDM; cooperative communication; nonlinear power amplifier; outage probability; symbol error probability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sousa, D. A. (2013). AnÃlise de desempenho de sistemas OFDM cooperativos DF com amplificadores de potÃncia nÃo lineares. (Masters Thesis). Universidade Federal do Ceará. Retrieved from http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10597 ;
Chicago Manual of Style (16th Edition):
Sousa, Diego Aguiar. “AnÃlise de desempenho de sistemas OFDM cooperativos DF com amplificadores de potÃncia nÃo lineares.” 2013. Masters Thesis, Universidade Federal do Ceará. Accessed December 11, 2019.
http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10597 ;.
MLA Handbook (7th Edition):
Sousa, Diego Aguiar. “AnÃlise de desempenho de sistemas OFDM cooperativos DF com amplificadores de potÃncia nÃo lineares.” 2013. Web. 11 Dec 2019.
Vancouver:
Sousa DA. AnÃlise de desempenho de sistemas OFDM cooperativos DF com amplificadores de potÃncia nÃo lineares. [Internet] [Masters thesis]. Universidade Federal do Ceará 2013. [cited 2019 Dec 11].
Available from: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10597 ;.
Council of Science Editors:
Sousa DA. AnÃlise de desempenho de sistemas OFDM cooperativos DF com amplificadores de potÃncia nÃo lineares. [Masters Thesis]. Universidade Federal do Ceará 2013. Available from: http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=10597 ;
28.
Morales-Jiménez, David.
Performance Analysis of Non-Ideal MIMO Systems in Fading Channels.
Degree: 2011, Universidad de Málaga, Servicio de Publicaciones
URL: http://hdl.handle.net/10630/4715
► En esta tesis se aborda el análisis de prestaciones de sistemas MIMO bajo ciertas condiciones no ideales. Se han considerado limitaciones realistas como son las…
(more)
▼ En esta tesis se aborda el análisis de prestaciones de sistemas MIMO bajo ciertas condiciones no ideales. Se han considerado limitaciones realistas como son las interferencias co-canal, el canal de retorno con velocidad limitada, y la correlación espacial entre antenas. Bajo estas condiciones, se han analizado las probabilidades de error y de
outage para sistemas MIMO que incluyen técnicas de conformación de haz en el transmisor y/o distintas técnicas de diversidad espacial en el receptor. Con el fin de obtener expresiones cerradas y exactas par los indicadores de rendimiento mencionados, se han desarrollo nuevos métodos o herramientas matemáticas que facilitan o, en algunos casos, hacen posible el análisis. En primer lugar, se han obtenido nuevas expresiones cerradas para las integrales del tipo Lipschitz-Hankel y para la distribución de los elementos de la diagonal de matrices Wishart complejas. Posteriormente, estos resultados han sido aplicados al análisis de prestaciones de distintos sistemas MIMO en condiciones no-ideales. Concretamente, se han obtenido nuevas expresiones cerrradas de la probabilidad de
outage para: sistemas MRC con interferencia co-canal, sistemas MIMO con correlación espacial entre antenas, y sistemas MIMO MRC con un canal de retorno limitado en velocidad. Además, se han obtenido expresiones cerradas para la probabilidad de error en sistemas de diversidad en recepción que emplean modulaciones no coherentes y no ortogonales.
Advisors/Committee Members: Ingeniería de Comunicaciones, Paris Ángel, José Francisco, Entrambasaguas Muñoz, José Tomás.
Subjects/Keywords: Sistemas de comunicaciones inalámbricas - Tesis doctorales; Procesado de señales - Tesis doctorales; MIMO; Fading channels; Outage Probability; Bit error probability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Morales-Jiménez, D. (2011). Performance Analysis of Non-Ideal MIMO Systems in Fading Channels. (Thesis). Universidad de Málaga, Servicio de Publicaciones. Retrieved from http://hdl.handle.net/10630/4715
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Morales-Jiménez, David. “Performance Analysis of Non-Ideal MIMO Systems in Fading Channels.” 2011. Thesis, Universidad de Málaga, Servicio de Publicaciones. Accessed December 11, 2019.
http://hdl.handle.net/10630/4715.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Morales-Jiménez, David. “Performance Analysis of Non-Ideal MIMO Systems in Fading Channels.” 2011. Web. 11 Dec 2019.
Vancouver:
Morales-Jiménez D. Performance Analysis of Non-Ideal MIMO Systems in Fading Channels. [Internet] [Thesis]. Universidad de Málaga, Servicio de Publicaciones; 2011. [cited 2019 Dec 11].
Available from: http://hdl.handle.net/10630/4715.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Morales-Jiménez D. Performance Analysis of Non-Ideal MIMO Systems in Fading Channels. [Thesis]. Universidad de Málaga, Servicio de Publicaciones; 2011. Available from: http://hdl.handle.net/10630/4715
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
29.
Haider, Iqbal Hasan.
Performance Analysis of Cognitive Radio Network over SIMO System.
Degree: 2012, , School of Engineering
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3439
► As resources are limited, radio spectrum becomes congested due to the growth of wireless applications. However, measurements address the fact that most of the…
(more)
▼ As resources are limited, radio spectrum becomes congested due to the growth of wireless applications. However, measurements address the fact that most of the licensed spectrums experience low utilization even in intensively teeming areas. In the exertion to improve the utilization of the limited spectrum resources, cognitive radio networks have emerged as a powerful technique to resolve this problem. There are two types of user in cognitive radio networks (CRNs) named as primary user (PU) and secondary user (SU). Therein, the CRN enables the SU to utilize the unused licensed frequency of the PU if it possibly finds the vacant spectrum or white space (known as opportunistic spectrum access). Alternatively, SU can transmit simultaneously with the PU provided that transmission power of SU does not cause any harmful interference to the PU (known as spectrum sharing systems). In this thesis work, we study fundamental knowledge of the CRNs and focus on the performance analysis of the single input multiple output (SIMO) system for spectrum sharing approach. We assume that a secondary transmitter (SU-Tx) has full channel state information (CSI). The SU-Tx can adjust its transmit power not to cause harmful interference to the PU and obtain an optimal transmit rate. In particular, we derive the closed-form expressions for the cumulative distribution function (CDF), outage probability and an analytical expression for symbol error probability (SEP).
As resources are limited, radio spectrum becomes congested due to the growth of wireless applications. However, measurements address the fact that most of the licensed spectrums experience low utilization even in intensively teeming areas. In the exertion to improve the utilization of the limited spectrum resources, cognitive radio networks have emerged as a powerful technique to resolve this problem. There are two types of user in cognitive radio networks (CRNs) named as primary user (PU) and secondary user (SU). Therein, the CRN enables the SU to utilize the unused licensed frequency of the PU if it possibly finds the vacant spectrum or white space (known as opportunistic spectrum access). Alternatively, SU can transmit simultaneously with the PU provided that transmission power of SU does not cause any harmful interference to the PU (known as spectrum sharing systems). In this thesis work, we study fundamental knowledge of the CRNs and focus on the performance analysis of the single input multiple output (SIMO) system for spectrum sharing approach. We assume that a secondary transmitter (SU-Tx) has full channel state information (CSI). The SU-Tx can adjust its transmit power not to cause harmful interference to the PU and obtain an optimal transmit rate. In particular, we derive the closed-form expressions for the cumulative distribution function (CDF), outage probability and an analytical expression for symbol error probability (SEP).
Iqbal Hasan Haider, cell: +46704571807 MD. Fazla Rabby, cell: +46734965477
Subjects/Keywords: Cognitive Radio; Outage Probability; Symbol Error Probability; Single Input Multiple Output; Selection Combining; Spectrum Sharing System.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Haider, I. H. (2012). Performance Analysis of Cognitive Radio Network over SIMO System. (Thesis). , School of Engineering. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3439
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Haider, Iqbal Hasan. “Performance Analysis of Cognitive Radio Network over SIMO System.” 2012. Thesis, , School of Engineering. Accessed December 11, 2019.
http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3439.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Haider, Iqbal Hasan. “Performance Analysis of Cognitive Radio Network over SIMO System.” 2012. Web. 11 Dec 2019.
Vancouver:
Haider IH. Performance Analysis of Cognitive Radio Network over SIMO System. [Internet] [Thesis]. , School of Engineering; 2012. [cited 2019 Dec 11].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3439.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Haider IH. Performance Analysis of Cognitive Radio Network over SIMO System. [Thesis]. , School of Engineering; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:bth-3439
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

King Abdullah University of Science and Technology
30.
Alammouri, Ahmad.
Full-Duplex Communications in Large-Scale Cellular Networks.
Degree: 2016, King Abdullah University of Science and Technology
URL: http://hdl.handle.net/10754/608640
► In-band full-duplex (FD) communications have been optimistically promoted to improve the spectrum utilization and efficiency. However, the penetration of FD communications to the cellular networks…
(more)
▼ In-band full-duplex (FD) communications have been optimistically promoted to improve the spectrum utilization and efficiency. However, the penetration of FD communications to the cellular networks domain is challenging due to the imposed uplink/downlink interference. This thesis presents a tractable framework, based on stochastic geometry, to study FD communications in multi-tier cellular networks. Particularly, we assess the FD communications effect on the network performance and quantify the associated gains. The study proves the vulnerability of the uplink to the downlink interference and shows that the improved FD rate gains harvested in the downlink
(up to 97%) comes at the expense of a significant degradation in the uplink rate (up to 94%). Therefore, we propose a novel fine-grained duplexing scheme, denoted as α-duplex scheme, which allows a partial overlap between the uplink and the downlink frequency bands. We derive the required conditions to harvest rate gains from the α-duplex scheme and show its superiority to both the FD and half-duplex (HD) schemes. In particular, we show that the α-duplex scheme provides a simultaneous improvement of 28% for the downlink rate and 56% for the uplink rate. We also show that the amount of the overlap can be optimized based on the network design objective.
Moreover, backward compatibility is an essential ingredient for the success of new technologies. In the context of in-band FD communication, FD base stations (BSs) should support HD users' equipment (UEs) without sacrificing the foreseen FD gains. The results show that FD-UEs are not necessarily required to harvest rate gains from FD-BSs. In particular, the results show that adding FD-UEs to FD-BSs offers a maximum of 5% rate gain over FD-BSs and HD-UEs case, which is a marginal gain compared to the burden required to implement FD transceivers at the UEs' side. To this end, we shed light on practical scenarios where HD-UEs operation with FD-BSs outperforms the operation when both the BSs and UEs are FD and we find a closed
form expression for the critical value of the self-interference cancellation power required for the FD UEs to outperform HD UEs.
Subjects/Keywords: Full duplex; half duplex; Stochastic Geometry; network interference; partial overlap; Error probability; outage probability; ergodic rate; network topology
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APA (6th Edition):
Alammouri, A. (2016). Full-Duplex Communications in Large-Scale Cellular Networks. (Thesis). King Abdullah University of Science and Technology. Retrieved from http://hdl.handle.net/10754/608640
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Alammouri, Ahmad. “Full-Duplex Communications in Large-Scale Cellular Networks.” 2016. Thesis, King Abdullah University of Science and Technology. Accessed December 11, 2019.
http://hdl.handle.net/10754/608640.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Alammouri, Ahmad. “Full-Duplex Communications in Large-Scale Cellular Networks.” 2016. Web. 11 Dec 2019.
Vancouver:
Alammouri A. Full-Duplex Communications in Large-Scale Cellular Networks. [Internet] [Thesis]. King Abdullah University of Science and Technology; 2016. [cited 2019 Dec 11].
Available from: http://hdl.handle.net/10754/608640.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Alammouri A. Full-Duplex Communications in Large-Scale Cellular Networks. [Thesis]. King Abdullah University of Science and Technology; 2016. Available from: http://hdl.handle.net/10754/608640
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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