subject:(cooperative communication)

University of Canterbury

1. Lin, Rui. Cooperative Communication Systems Using Distributed Turbo Coding.

Degree: PhD, Electrical Engineering, 2011, University of Canterbury

► Cooperative and relay wireless communication networks use one or more distinct wire- less nodes as relays to combat performance impairments, which include signal atten- uation… (more)

▼ Cooperative and relay wireless communication networks use one or more distinct wire- less nodes as relays to combat performance impairments, which include signal atten- uation due to power loss over long distances and the signal power fluctuation due to multi-path fading. The second one is the primary focus of this thesis. Diversity is an effective weapon to combat the fading effects and using multiple antennas at both the transmitter and receiver is a way of achieving it. However, using multiple antennas may not be practical for some mobile terminals due to the limited physical size, battery power and computational capability of these mobile terminals. Therefore, cooperative schemes have been proposed in which several wireless nodes cooperate with each other to achieve diversity even though each node has only one an- tenna. Many cooperative schemes have been proposed including Amplify-and-Forward (AF) and Decode-and-Forward (DF) [1] to achieve this diversity. This thesis primarily proposes and studies a DF scheme. For the DF schemes, imperfect decoding at the relay is one of the major limitations to the achievable performance. To address this problem and yet remain simple to implement, a novel DF based cooperative scheme is proposed in this thesis. This proposed scheme uses a distributed Turbo coding (DTC) scheme and is resilient to relay errors. It is analyzed by using the approximate Gaussian density evolution method. The analysis shows how the iterative Turbo decoding performs with different bit error rates (BERs) at the relay. Based on the results, a novel scheme, which adaptively changes the code used at the relay, is then proposed to further improve performance. The diversity offered by the proposed scheme is achieved at the cost of decreased spectral efficiency compared to a non-cooperative network. To recover some of the spectral efficiency loss due to cooperation, the proposed single source node cooperative scheme is extended to a two source nodes (users) scheme. The relay node forwards a combined packet which is formed by combining multiple users' information packets into a single packet. The results show that combining multiple users' information packets using superposition modulation can achieve better performance than that of using "XOR" operation (network coding) when two users have different channel qualities, which is very common in a wireless communication environment.

Subjects/Keywords: cooperative communication

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APA (6^th Edition):

Lin, R. (2011). Cooperative Communication Systems Using Distributed Turbo Coding. (Doctoral Dissertation). University of Canterbury. Retrieved from http://dx.doi.org/10.26021/2674

Chicago Manual of Style (16^th Edition):

Lin, Rui. “Cooperative Communication Systems Using Distributed Turbo Coding.” 2011. Doctoral Dissertation, University of Canterbury. Accessed March 07, 2021. http://dx.doi.org/10.26021/2674.

MLA Handbook (7^th Edition):

Lin, Rui. “Cooperative Communication Systems Using Distributed Turbo Coding.” 2011. Web. 07 Mar 2021.

Vancouver:

Lin R. Cooperative Communication Systems Using Distributed Turbo Coding. [Internet] [Doctoral dissertation]. University of Canterbury; 2011. [cited 2021 Mar 07]. Available from: http://dx.doi.org/10.26021/2674.

Council of Science Editors:

Lin R. Cooperative Communication Systems Using Distributed Turbo Coding. [Doctoral Dissertation]. University of Canterbury; 2011. Available from: http://dx.doi.org/10.26021/2674

University of Melbourne

2. Kudavithana, Dinuka. Energy efficient wireless system design.

Degree: 2015, University of Melbourne

URL: http://hdl.handle.net/11343/91674

► The demand for telecommunication networks is increasing rapidly. Wireless access is a major contributor to this trend. On the other hand, wireless is considered as… (more)

▼ The demand for telecommunication networks is increasing rapidly. Wireless access is a major contributor to this trend. On the other hand, wireless is considered as a least energy efficient transmission medium mainly due to its unguided nature. The general focus of increasing wireless system energy efficiency is on reduction of the transmit power. However, this strategy may not save energy in short distance communication systems as the processing energy in hardware becomes more significant compared to the transmit radio energy. This thesis focuses on looking at the energy consumption of wireless systems by modeling the energy consumption as a function of several parameters such as receiver SNR, RF bandwidth, information rate, modulation scheme and code rate. We propose energy models for synchronization systems and other digital signal processing modules by considering the computational complexity of the algorithm and the required circuitry. Initially we focus on the synchronization aspects of wireless receivers. We study various algorithms on symbol timing recovery, carrier frequency recovery and carrier phase recovery and compare the performance in order to identify the suitable algorithms to operate at different SNR regions. We then develop energy models for those synchronization sub-systems by analyzing the computational complexity of circuitries based on a number of arithmetic, logic and memory operations. We define a new metric - energy consumption to achieve a given performance as a function of SNR - in order to compare the energy efficiency of different estimation algorithms. Next, we investigate the energy-efficiency trade-offs of a point-to-point wireless system by developing energy models of both the transmitter and receiver that include practical aspects such as error control coding, synchronization and channel equalization. In our system, a multipath Rayleigh-fading channel model and a low-density parity check (LDPC) coding scheme are chosen. We then develop a closed-form approximation for the total energy consumption as a function of receiver SNR and use it to find a minimum-energy transmission configuration. The results reveal that low SNR operation (i.e. low transmit power) is not always the most energy efficient strategy, especially in short distance communication. We present an optimal-SNR concept which can save a significant amount of energy mainly in short-range transmission systems. We then focus on cooperative relay systems. We investigate the energy efficiency trade-offs of single – relay networks by developing energy models for two relay strategies: amplify-and-forward (AF) and detect-and-forward (DF). We then optimize the location and power allocation of the relay to minimize the total energy consumption. The optimum location is found in two-dimensional space for constrained and unconstrained scenarios. We then optimize the total energy consumption over the spectral efficiency and derive expressions for the optimal spectral efficiency values. We use numerical simulations to verify our…

Subjects/Keywords: wireless communication; energy efficiency; cooperative communication

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APA (6^th Edition):

Kudavithana, D. (2015). Energy efficient wireless system design. (Doctoral Dissertation). University of Melbourne. Retrieved from http://hdl.handle.net/11343/91674

Chicago Manual of Style (16^th Edition):

Kudavithana, Dinuka. “Energy efficient wireless system design.” 2015. Doctoral Dissertation, University of Melbourne. Accessed March 07, 2021. http://hdl.handle.net/11343/91674.

MLA Handbook (7^th Edition):

Kudavithana, Dinuka. “Energy efficient wireless system design.” 2015. Web. 07 Mar 2021.

Vancouver:

Kudavithana D. Energy efficient wireless system design. [Internet] [Doctoral dissertation]. University of Melbourne; 2015. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/11343/91674.

Council of Science Editors:

Kudavithana D. Energy efficient wireless system design. [Doctoral Dissertation]. University of Melbourne; 2015. Available from: http://hdl.handle.net/11343/91674

NSYSU

3. Lo , Li-chung. Design of reliable cooperative networks.

Degree: PhD, Communications Engineering, 2017, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0016117-151545

► Cooperative communication has attracted extensive interest over the past decade due to the ability it gives nodes to exploit additional spatial diversity gain though user… (more)

▼ Cooperative communication has attracted extensive interest over the past decade due to the ability it gives nodes to exploit additional spatial diversity gain though user cooperation. Various cooperative strategies have been proposed for enhancing the power or spectrum efficiency in networks with different topologies or availabilities of channel information. However, most of these strategies assume that the relays are fully cooperative. Thus, if a relay misbehaves due to selfish or adversarial reasons, the efficiency of the cooperative system may be severely degraded. Existing schemes for detecting misbehaving nodes assume perfect channel state information (CSI) at the destination. However, when the relays misbehave, the channel estimates could be doubted. Consequently, noncoherent misbehavior detection is a crucial research area in the cooperative communication field. This dissertation commences by considering the straightforward case of a single relay system in which the misbehaving relay simply garbles the retransmitted symbols randomly as one of the other quadrature phase-shift keying (QPSK) signal points. Thus, by measuring the average received energy, and observing the distribution of the phase rotations of the tracing symbols, misbehavior of the relay can be determined with no knowledge of the CSI. The dissertation next considers the case of a multi-relay system, and proposes a misbehavior detection scheme based on the secondorder statistics of the channel estimates for the relay-destination links. To ensure their practicality for real-world applications, cooperative networks must have the ability to detect arbitrary misbehavior patterns and different signal constellations. Consequently, the dissertation concludes by deriving a correlation-based detection statistic with which to characterize the detection performance given a specific misbehaving pattern and to customize the detector if needed to meet a specified system requirement. Advisors/Committee Members: Wan-Jen Huang (committee member), Tsang-Yi Charlie Wang (chair), Fan-Shuo Tseng (chair), Chung, Wei-Ho (chair), Chang, Ronald Y. (chair).

Subjects/Keywords: Noncoherent misbehavior detection; Channel estimation; Cooperative communication

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APA (6^th Edition):

Lo , L. (2017). Design of reliable cooperative networks. (Doctoral Dissertation). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0016117-151545

Chicago Manual of Style (16^th Edition):

Lo , Li-chung. “Design of reliable cooperative networks.” 2017. Doctoral Dissertation, NSYSU. Accessed March 07, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0016117-151545.

MLA Handbook (7^th Edition):

Lo , Li-chung. “Design of reliable cooperative networks.” 2017. Web. 07 Mar 2021.

Vancouver:

Lo L. Design of reliable cooperative networks. [Internet] [Doctoral dissertation]. NSYSU; 2017. [cited 2021 Mar 07]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0016117-151545.

Council of Science Editors:

Lo L. Design of reliable cooperative networks. [Doctoral Dissertation]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0016117-151545

University of Alberta

4. Soysa, Madushanka Dinesh. Performance of dual hop relay systems with imperfect CSI.

Degree: MS, Department of Electrical and Computer Engineering, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/qz20st22t

► Wireless relays offer beneﬁts such as coverage extension and improving robustness. Selection of relays may provide further beneﬁts. The best relays are selected based on… (more)

Subjects/Keywords: performance analysis; cooperative relay; wireless communication

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APA (6^th Edition):

Soysa, M. D. (2011). Performance of dual hop relay systems with imperfect CSI. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/qz20st22t

Chicago Manual of Style (16^th Edition):

Soysa, Madushanka Dinesh. “Performance of dual hop relay systems with imperfect CSI.” 2011. Masters Thesis, University of Alberta. Accessed March 07, 2021. https://era.library.ualberta.ca/files/qz20st22t.

MLA Handbook (7^th Edition):

Soysa, Madushanka Dinesh. “Performance of dual hop relay systems with imperfect CSI.” 2011. Web. 07 Mar 2021.

Vancouver:

Soysa MD. Performance of dual hop relay systems with imperfect CSI. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2021 Mar 07]. Available from: https://era.library.ualberta.ca/files/qz20st22t.

Council of Science Editors:

Soysa MD. Performance of dual hop relay systems with imperfect CSI. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/qz20st22t

Cornell University

5. Sharp, Matthew. Pilot Signal Design For Estimation Of Sparse Channels With Application To Cooperative Systems.

Degree: PhD, Electrical Engineering, 2011, Cornell University

URL: http://hdl.handle.net/1813/33575

► In recent years, there has been a resurgence in the interest of using HF radio band (3-30 MHz) for military, government, and emergency applications. In… (more)

▼ In recent years, there has been a resurgence in the interest of using HF radio band (3-30 MHz) for military, government, and emergency applications. In order to allow for more reliable mobile HF radio networks, the use of distributed cooperative communication schemes is appealing. In fact, the large HF wavelength prevents one from obtaining diversity from antennae located on a single portable radio. Hence cooperative schemes can potentially bring the benefits of MIMO systems to portable HF radios, allowing for diversity gains as well as potential reductions in transmit power. Our work is focused on the receiver design for cooperative HF radios. The motivation for our work is as follows. Using distributed cooperative communication schemes in OTH-HF propagation environments introduces several additional complications in comparison with traditional MIMO systems. Different from a traditional MIMO system, there is additional overhead required to organize and synchronize the cooperative radios' transmissions. Our work focuses on the distributed cooperative communication scheme introduced in [82] which reduces the overhead by introducing randomization into the coding scheme, but does not solve the synchronization problem. In terms of efficiency, it is best to allow cooperative nodes to transmit concurrently, using space-time coding techniques, as done in the randomized protocol proposed in [82]. But several authors argue against such solutions, given the challenge of synchronizing the different cooperative radios participating in the transmission. Our work investigates the effects of imperfect synchronization among cooperative nodes, resulting in dispersive effects that can be captured by an equivalent MIMO channel. The key contribution is in proposing the use of compressed sensing (or sparse signal recovery) techniques to deal with these channels at the receiver. We first consider designs that are sufficiently informative for MIMO systems that can be appropriately modeled as sparse. After introducing noise and modeling error, we examine the performance of an ideal sparse channel estimation method, leading to a metric we call localized coherence, and modified training designs. These results are then applied to the asynchronous distributed cooperative communication scheme. Advisors/Committee Members: Scaglione, Anna (chair), Johnson Jr, Charles R. (committee member), Tong, Lang (committee member).

Subjects/Keywords: Channel Estimation; Cooperative Communication; Sparse Signal Recovery

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APA (6^th Edition):

Sharp, M. (2011). Pilot Signal Design For Estimation Of Sparse Channels With Application To Cooperative Systems. (Doctoral Dissertation). Cornell University. Retrieved from http://hdl.handle.net/1813/33575

Chicago Manual of Style (16^th Edition):

Sharp, Matthew. “Pilot Signal Design For Estimation Of Sparse Channels With Application To Cooperative Systems.” 2011. Doctoral Dissertation, Cornell University. Accessed March 07, 2021. http://hdl.handle.net/1813/33575.

MLA Handbook (7^th Edition):

Sharp, Matthew. “Pilot Signal Design For Estimation Of Sparse Channels With Application To Cooperative Systems.” 2011. Web. 07 Mar 2021.

Vancouver:

Sharp M. Pilot Signal Design For Estimation Of Sparse Channels With Application To Cooperative Systems. [Internet] [Doctoral dissertation]. Cornell University; 2011. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1813/33575.

Council of Science Editors:

Sharp M. Pilot Signal Design For Estimation Of Sparse Channels With Application To Cooperative Systems. [Doctoral Dissertation]. Cornell University; 2011. Available from: http://hdl.handle.net/1813/33575

University of Waterloo

6. Alam, Md Shamsul. Modeling and Performance Analysis of Relay-based Cooperative OFDMA Networks.

Degree: 2014, University of Waterloo

URL: http://hdl.handle.net/10012/8520

► Next generation wireless communication networks are expected to provide ubiquitous high data rate coverage and support heterogeneous wireless services with diverse quality-of-service (QoS) requirements. This… (more)

▼ Next generation wireless communication networks are expected to provide ubiquitous high data rate coverage and support heterogeneous wireless services with diverse quality-of-service (QoS) requirements. This translates into a heavy demand for the spectral resources. In order to meet these requirements, Orthogonal Frequency Division Multiple Access (OFDMA) has been regarded as a promising air-interface for the emerging fourth generation (4G) networks due to its capability to combat the channel impairments and support high data rate. In addition, OFDMA offers flexibility in radio resource allocation and provides multiuser diversity by allowing subcarriers to be shared among multiple users. One of the main challenges for the 4G networks is to achieve high throughput throughout the entire cell. Cooperative relaying is a very promising solution to tackle this problem as it provides throughput gains as well as coverage extension. The combination of OFDMA and cooperative relaying assures high throughput requirements, particularly for users at the cell edge. However, to fully exploit the benefits of relaying, efficient relay selection as well as resource allocation are critical in such kind of network when multiple users and multiple relays are considered. Moreover, the consideration of heterogeneous QoS requirements further complicate the optimal allocation of resources in a relay enhanced OFDMA network. Furthermore, the computational complexity and signalling overhead are also needed to be considered in the design of practical resource allocation schemes. In this dissertation, we conduct a comprehensive research study on the topic of radio resource management for relay-based cooperative OFDMA networks supporting heterogeneous QoS requirements. Specifically, this dissertation investigates how to effectively and efficiently allocate resources to satisfy QoS requirements of 4G users, improve spectrum utilization and reduce computational complexity at the base station. The problems and our research achievements are briefly outlined as follows. Firstly, a QoS aware optimal joint relay selection, power allocation and subcarrier assignment scheme for uplink OFDMA system considering heterogeneous services under a total power constraint is proposed. The relay selection, power allocation and subcarrier assignment problem is formulated as a joint optimization problem with the objective of maximizing the system throughput, which is solved by means of a two level dual decomposition and subgradient method. The computational complexity is finally reduced via the introduction of two suboptimal schemes. The performance of the proposed schemes is demonstrated through computer simulations based on OFDMA network. Numerical results show that our schemes support heterogeneous services while guaranteeing each user's QoS requirements with slight total system throughput degradation. Secondly, we investigate the resource allocation problem subject to the satisfaction of user QoS requirements and individual total power constraints of…

Subjects/Keywords: Resource allocation; OFDMA networks; Relay; Cooperative Communication

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APA (6^th Edition):

Alam, M. S. (2014). Modeling and Performance Analysis of Relay-based Cooperative OFDMA Networks. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/8520

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Alam, Md Shamsul. “Modeling and Performance Analysis of Relay-based Cooperative OFDMA Networks.” 2014. Thesis, University of Waterloo. Accessed March 07, 2021. http://hdl.handle.net/10012/8520.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Alam, Md Shamsul. “Modeling and Performance Analysis of Relay-based Cooperative OFDMA Networks.” 2014. Web. 07 Mar 2021.

Vancouver:

Alam MS. Modeling and Performance Analysis of Relay-based Cooperative OFDMA Networks. [Internet] [Thesis]. University of Waterloo; 2014. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10012/8520.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Alam MS. Modeling and Performance Analysis of Relay-based Cooperative OFDMA Networks. [Thesis]. University of Waterloo; 2014. Available from: http://hdl.handle.net/10012/8520

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Addis Ababa University

7. Elleni, Mekonnen. Cooperative Diversity for Broadband Vehicular Communication under Doubly- Selective Channel .

Degree: 2014, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/5030

► Previous works on vehicular communication assume the channel to be frequency-flat and quasi-static. But this assumption is unrealistic in now days where communication takes place… (more)

Subjects/Keywords: Doubly-selective channels; Equalizer; Precoding; Cooperative communication

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APA (6^th Edition):

Elleni, M. (2014). Cooperative Diversity for Broadband Vehicular Communication under Doubly- Selective Channel . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/5030

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Elleni, Mekonnen. “Cooperative Diversity for Broadband Vehicular Communication under Doubly- Selective Channel .” 2014. Thesis, Addis Ababa University. Accessed March 07, 2021. http://etd.aau.edu.et/dspace/handle/123456789/5030.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Elleni, Mekonnen. “Cooperative Diversity for Broadband Vehicular Communication under Doubly- Selective Channel .” 2014. Web. 07 Mar 2021.

Vancouver:

Elleni M. Cooperative Diversity for Broadband Vehicular Communication under Doubly- Selective Channel . [Internet] [Thesis]. Addis Ababa University; 2014. [cited 2021 Mar 07]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/5030.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Elleni M. Cooperative Diversity for Broadband Vehicular Communication under Doubly- Selective Channel . [Thesis]. Addis Ababa University; 2014. Available from: http://etd.aau.edu.et/dspace/handle/123456789/5030

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Wollongong

8. Lin, Zixuan. Cooperative communication in OFDM-based systems.

Degree: Master of Engineering - Research, 2013, University of Wollongong

URL: 0906 ELECTRICAL AND ELECTRONIC ENGINEERING ; https://ro.uow.edu.au/theses/3871

► Multiband orthogonal frequency division multiplexing ultra-wideband (MB-OFDM UWB) is an emerging technology proposed for wireless personal area network (WPAN) communication. It provides high data… (more)

Subjects/Keywords: Cooperative communication; space-time processing; UWB; OFDM

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APA (6^th Edition):

Lin, Z. (2013). Cooperative communication in OFDM-based systems. (Masters Thesis). University of Wollongong. Retrieved from 0906 ELECTRICAL AND ELECTRONIC ENGINEERING ; https://ro.uow.edu.au/theses/3871

Chicago Manual of Style (16^th Edition):

Lin, Zixuan. “Cooperative communication in OFDM-based systems.” 2013. Masters Thesis, University of Wollongong. Accessed March 07, 2021. 0906 ELECTRICAL AND ELECTRONIC ENGINEERING ; https://ro.uow.edu.au/theses/3871.

MLA Handbook (7^th Edition):

Lin, Zixuan. “Cooperative communication in OFDM-based systems.” 2013. Web. 07 Mar 2021.

Vancouver:

Lin Z. Cooperative communication in OFDM-based systems. [Internet] [Masters thesis]. University of Wollongong; 2013. [cited 2021 Mar 07]. Available from: 0906 ELECTRICAL AND ELECTRONIC ENGINEERING ; https://ro.uow.edu.au/theses/3871.

Council of Science Editors:

Lin Z. Cooperative communication in OFDM-based systems. [Masters Thesis]. University of Wollongong; 2013. Available from: 0906 ELECTRICAL AND ELECTRONIC ENGINEERING ; https://ro.uow.edu.au/theses/3871

University of Manitoba

9. Cui, Shaohang. Resource Allocation in Traditional and Cooperative Cognitive Radio Networks.

Degree: Electrical and Computer Engineering, 2011, University of Manitoba

URL: http://hdl.handle.net/1993/4842

► Cognitive radio (CR) is a promising technique to improve spectrum efficiency for wireless communications. This thesis focuses on the resource allocation in two kinds of… (more)

Subjects/Keywords: Resource Allocation; Cognitive Radio; cooperative communication; game

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APA (6^th Edition):

Cui, S. (2011). Resource Allocation in Traditional and Cooperative Cognitive Radio Networks. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/4842

Chicago Manual of Style (16^th Edition):

Cui, Shaohang. “Resource Allocation in Traditional and Cooperative Cognitive Radio Networks.” 2011. Masters Thesis, University of Manitoba. Accessed March 07, 2021. http://hdl.handle.net/1993/4842.

MLA Handbook (7^th Edition):

Cui, Shaohang. “Resource Allocation in Traditional and Cooperative Cognitive Radio Networks.” 2011. Web. 07 Mar 2021.

Vancouver:

Cui S. Resource Allocation in Traditional and Cooperative Cognitive Radio Networks. [Internet] [Masters thesis]. University of Manitoba; 2011. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1993/4842.

Council of Science Editors:

Cui S. Resource Allocation in Traditional and Cooperative Cognitive Radio Networks. [Masters Thesis]. University of Manitoba; 2011. Available from: http://hdl.handle.net/1993/4842

Iowa State University

10. Malani, Navneet. Prioritization, security and relay selection in network coded multiple access relay networks.

Degree: 2014, Iowa State University

URL: https://lib.dr.iastate.edu/etd/13786

► Wireless communication is undoubtedly one of the most significant advancements by the mankind for improving quality of life. Information is transmitted from one point to… (more)

Subjects/Keywords: Cooperative Communication; Network Coding; Electrical and Electronics

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APA (6^th Edition):

Malani, N. (2014). Prioritization, security and relay selection in network coded multiple access relay networks. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/13786

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Malani, Navneet. “Prioritization, security and relay selection in network coded multiple access relay networks.” 2014. Thesis, Iowa State University. Accessed March 07, 2021. https://lib.dr.iastate.edu/etd/13786.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Malani, Navneet. “Prioritization, security and relay selection in network coded multiple access relay networks.” 2014. Web. 07 Mar 2021.

Vancouver:

Malani N. Prioritization, security and relay selection in network coded multiple access relay networks. [Internet] [Thesis]. Iowa State University; 2014. [cited 2021 Mar 07]. Available from: https://lib.dr.iastate.edu/etd/13786.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Malani N. Prioritization, security and relay selection in network coded multiple access relay networks. [Thesis]. Iowa State University; 2014. Available from: https://lib.dr.iastate.edu/etd/13786

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Technology, Sydney

11. Barua, B. Performance analysis of cooperative relay networks in presence of interference.

Degree: 2012, University of Technology, Sydney

URL: http://hdl.handle.net/10453/21432

► In the past decade, cooperative communication has emerged as an attractive technique for overcoming the shortcomings of point-to-point wireless communications systems. Cooperative relaying improves the… (more)

▼ In the past decade, cooperative communication has emerged as an attractive technique for overcoming the shortcomings of point-to-point wireless communications systems. Cooperative relaying improves the performance of wireless networks by forming an array of multiple independent virtual sources transmitting the same information as the source node. In addition, when relays are deployed near the edge of the network, they can provide additional coverage in network dead spots. Interference in the network can also be reduced in cooperative communications systems as the nodes can transmit at lower power levels compared to equivalent point-to-point communications systems. Optimum design of a cooperative network requires an accurate understanding of all factors affecting performance. In order to parameterize the performance of cooperative systems, this thesis introduces mathematical models for different performance metrics, such as symbol error probability, outage probability and random coding error exponent, in order to analytically estimate network capacity. A dual-hop network is introduced as the most basic type of relay network. Random coding error exponent results have been obtained using this simple network model are presented along with corresponding channel capacity estimates based on the assumption of Gaussian input codes. Next, a general multihop network error and outage performance model are developed. Detailed mathematical and statistical models for interference relay networks are presented. The basic statistical parameters, cumulative distribution function and probability density function for interference cooperative dual hop relay networks are derived and explored. A partial formulation for the random coding error exponent (RCEE) result is also presented. Simulation results over Rayleigh and Nakagami-m fading channel models are included in each chapter for all of the selected performance metrics in order to validate the theoretical analysis, under the assumption that channels are flat over the duration of one symbol transmission. These results are in close agreement with the predictions of the analytical models.

Subjects/Keywords: Cooperative relay network.; Interference.; Wireless communication.

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APA (6^th Edition):

Barua, B. (2012). Performance analysis of cooperative relay networks in presence of interference. (Thesis). University of Technology, Sydney. Retrieved from http://hdl.handle.net/10453/21432

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Barua, B. “Performance analysis of cooperative relay networks in presence of interference.” 2012. Thesis, University of Technology, Sydney. Accessed March 07, 2021. http://hdl.handle.net/10453/21432.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Barua, B. “Performance analysis of cooperative relay networks in presence of interference.” 2012. Web. 07 Mar 2021.

Vancouver:

Barua B. Performance analysis of cooperative relay networks in presence of interference. [Internet] [Thesis]. University of Technology, Sydney; 2012. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10453/21432.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Barua B. Performance analysis of cooperative relay networks in presence of interference. [Thesis]. University of Technology, Sydney; 2012. Available from: http://hdl.handle.net/10453/21432

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Victoria

12. Hashemitabar, Behnam. Physical layer network coding for the multi-way relay channel.

Degree: Dept. of Electrical and Computer Engineering, 2012, University of Victoria

URL: http://hdl.handle.net/1828/4364

► Wireless networks have received considerable attention recently due to the high user demand for wireless services and the emergence of new applications. This thesis focuses… (more)

Subjects/Keywords: Network coding; Relay channels; Cooperative communication

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APA (6^th Edition):

Hashemitabar, B. (2012). Physical layer network coding for the multi-way relay channel. (Masters Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/4364

Chicago Manual of Style (16^th Edition):

Hashemitabar, Behnam. “Physical layer network coding for the multi-way relay channel.” 2012. Masters Thesis, University of Victoria. Accessed March 07, 2021. http://hdl.handle.net/1828/4364.

MLA Handbook (7^th Edition):

Hashemitabar, Behnam. “Physical layer network coding for the multi-way relay channel.” 2012. Web. 07 Mar 2021.

Vancouver:

Hashemitabar B. Physical layer network coding for the multi-way relay channel. [Internet] [Masters thesis]. University of Victoria; 2012. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1828/4364.

Council of Science Editors:

Hashemitabar B. Physical layer network coding for the multi-way relay channel. [Masters Thesis]. University of Victoria; 2012. Available from: http://hdl.handle.net/1828/4364

University of Arizona

13. Hopkins, Sarah. Arizona Extension Agents' Use of Communication Technologies .

Degree: 2013, University of Arizona

URL: http://hdl.handle.net/10150/294024

► Arizona Cooperative Extension strives to address community issues and needs through a research based educational process. The specific foci of the Extension agent gradually changed… (more)

Subjects/Keywords: Cooperative Extension; Agricultural Education; Communication Technology

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APA (6^th Edition):

Hopkins, S. (2013). Arizona Extension Agents' Use of Communication Technologies . (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/294024

Chicago Manual of Style (16^th Edition):

Hopkins, Sarah. “Arizona Extension Agents' Use of Communication Technologies .” 2013. Masters Thesis, University of Arizona. Accessed March 07, 2021. http://hdl.handle.net/10150/294024.

MLA Handbook (7^th Edition):

Hopkins, Sarah. “Arizona Extension Agents' Use of Communication Technologies .” 2013. Web. 07 Mar 2021.

Vancouver:

Hopkins S. Arizona Extension Agents' Use of Communication Technologies . [Internet] [Masters thesis]. University of Arizona; 2013. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/10150/294024.

Council of Science Editors:

Hopkins S. Arizona Extension Agents' Use of Communication Technologies . [Masters Thesis]. University of Arizona; 2013. Available from: http://hdl.handle.net/10150/294024

Indian Institute of Science

14. Bansal, Gaurav. Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes.

Degree: MSc Engg, Faculty of Engineering, 2013, Indian Institute of Science

URL: http://etd.iisc.ac.in/handle/2005/2225

► In this thesis, we consider a cooperative relay-assisted communication system that uses rateless codes. When multiple relays are present, the relay with the highest channel… (more)

▼ In this thesis, we consider a cooperative relay-assisted communication system that uses rateless codes. When multiple relays are present, the relay with the highest channel gain to the source is the first to successfully decode a message from the source and forward it to the destination. Thus, the unique properties of rateless codes ensure that both rate adaptation and relay selection occur without the transmitting source or relays acquiring instantaneous channel knowledge. We show that in such cooperative systems, buffering messages at relays significantly increases throughput. We develop a novel analysis of these systems that combines the communication-theoretic aspects of cooperation over fading channels with the queuing-theoretic aspects associated with buffering. Closed-form expressions are derived for the throughput and end-to-end delay for the general case in which the channels between various nodes are not statistically identical. Results are also shown for the benchmark system that does not buffer messages. Though relay selection combined with buffering of messages at the relays substantially increases the throughput of a cooperative network, it also increases the end-to-end delays due to the additional queuing delays at the relay nodes. In order to overcome this, we propose a novel method that exploits a unique property of rateless codes that enables a receiver to decode a message from non-contiguous and unordered portions of the received signal. In it, each relay, depending on its queue length, ignores its received coded bits with a given probability. We show that this substantially reduces the end-to-end delays while retaining almost all of the throughput gain achieved by buffering. In effect, the method increases the odds that the message is first decoded by a relay with a smaller queue. Thus, the queuing load is balanced across the relays and traded off with transmission times. We derive conditions for the stability of this system when the various channels undergo fading. Despite encountering analytically intractable G/GI/1 queues in our system, we also gain insights about the method by analyzing a similar system with a simpler model for the relay-to-destination transmission times. Next we combine the single relay selection scheme at the source with physical layer power control at the relays (due to the diversity provided by the rateless codes, power control at the source is not needed). We derive an optimal power control policy that minimizes the relay to destination transmission time. Due to its computational and implementation complexity, we develop another heuristic easily implementable near optimal policy. In this policy, power allocated turns out to be inversely proportional to the square root of channel gain. We also see that this policy performs better than the channel inversion policy. Our power control solution substantially decreases the mean end-to-end delays with a marginal increase in throughput also. Finally, we combine bit dropping with power control at the relays which further… Advisors/Committee Members: Sharma, Vinod (advisor).

Subjects/Keywords: Wireless Communication Networks; Cooperative Relay-Assisted Communication; Queued Cooperative Communication; Rateless Codes; Relay Load Balancing; Relays - Power Control; Queued Cooperative Wireless Networks; Cooperative System; Buffered Relays; Communication Engineering

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APA (6^th Edition):

Bansal, G. (2013). Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes. (Masters Thesis). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/2225

Chicago Manual of Style (16^th Edition):

Bansal, Gaurav. “Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes.” 2013. Masters Thesis, Indian Institute of Science. Accessed March 07, 2021. http://etd.iisc.ac.in/handle/2005/2225.

MLA Handbook (7^th Edition):

Bansal, Gaurav. “Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes.” 2013. Web. 07 Mar 2021.

Vancouver:

Bansal G. Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes. [Internet] [Masters thesis]. Indian Institute of Science; 2013. [cited 2021 Mar 07]. Available from: http://etd.iisc.ac.in/handle/2005/2225.

Council of Science Editors:

Bansal G. Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes. [Masters Thesis]. Indian Institute of Science; 2013. Available from: http://etd.iisc.ac.in/handle/2005/2225

University of Alberta

15. Xiao, Chuzhe. Node Switching Rate in Cooperative Communications.

Degree: MS, Department of Electrical and Computer Engineering, 2012, University of Alberta

URL: https://era.library.ualberta.ca/files/0v838136x

► In opportunistic relaying systems, only the relay with best channel condition among K relays is selected to take part in cooperation. This setup efficiently achieves… (more)

Subjects/Keywords: Cooperative Communication; Switching Rate; Opportunistic Relaying; Wireless Communication

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APA (6^th Edition):

Xiao, C. (2012). Node Switching Rate in Cooperative Communications. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/0v838136x

Chicago Manual of Style (16^th Edition):

Xiao, Chuzhe. “Node Switching Rate in Cooperative Communications.” 2012. Masters Thesis, University of Alberta. Accessed March 07, 2021. https://era.library.ualberta.ca/files/0v838136x.

MLA Handbook (7^th Edition):

Xiao, Chuzhe. “Node Switching Rate in Cooperative Communications.” 2012. Web. 07 Mar 2021.

Vancouver:

Xiao C. Node Switching Rate in Cooperative Communications. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2021 Mar 07]. Available from: https://era.library.ualberta.ca/files/0v838136x.

Council of Science Editors:

Xiao C. Node Switching Rate in Cooperative Communications. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/0v838136x

Delft University of Technology

16. Kotobi, K. (author). Energy Conservation of Cooperative Communication over Composite Channels.

Degree: Telecommunication, Wireless and Mobile Communications (WMC) Group, 2011, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:98e99527-cd99-4546-8593-e9098d46395f

►

The studies about the effects of multipath fading and shadowing for wireless cooperative networks are insufficient. Almost all real wireless networks can be modeled by… (more)

Subjects/Keywords: Wireless Communication; Cooperative Communication; Composite Channels; Energy Conservation

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APA (6^th Edition):

Kotobi, K. (. (2011). Energy Conservation of Cooperative Communication over Composite Channels. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:98e99527-cd99-4546-8593-e9098d46395f

Chicago Manual of Style (16^th Edition):

Kotobi, K (author). “Energy Conservation of Cooperative Communication over Composite Channels.” 2011. Masters Thesis, Delft University of Technology. Accessed March 07, 2021. http://resolver.tudelft.nl/uuid:98e99527-cd99-4546-8593-e9098d46395f.

MLA Handbook (7^th Edition):

Kotobi, K (author). “Energy Conservation of Cooperative Communication over Composite Channels.” 2011. Web. 07 Mar 2021.

Vancouver:

Kotobi K(. Energy Conservation of Cooperative Communication over Composite Channels. [Internet] [Masters thesis]. Delft University of Technology; 2011. [cited 2021 Mar 07]. Available from: http://resolver.tudelft.nl/uuid:98e99527-cd99-4546-8593-e9098d46395f.

Council of Science Editors:

Kotobi K(. Energy Conservation of Cooperative Communication over Composite Channels. [Masters Thesis]. Delft University of Technology; 2011. Available from: http://resolver.tudelft.nl/uuid:98e99527-cd99-4546-8593-e9098d46395f

University of Sydney

17. Gu, Yifan. Advanced Relaying In Future Wireless Cooperative Networks .

Degree: 2018, University of Sydney

URL: http://hdl.handle.net/2123/20325

► The conventional wireless cooperative networks (WCNs) are mainly designed for battery-powered and human-operated terminals. The next generation of WCNs is designed for a large number… (more)

Subjects/Keywords: Wireless power transfer; Cooperative communication; short-packet communication

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APA (6^th Edition):

Gu, Y. (2018). Advanced Relaying In Future Wireless Cooperative Networks . (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/20325

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Gu, Yifan. “Advanced Relaying In Future Wireless Cooperative Networks .” 2018. Thesis, University of Sydney. Accessed March 07, 2021. http://hdl.handle.net/2123/20325.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Gu, Yifan. “Advanced Relaying In Future Wireless Cooperative Networks .” 2018. Web. 07 Mar 2021.

Vancouver:

Gu Y. Advanced Relaying In Future Wireless Cooperative Networks . [Internet] [Thesis]. University of Sydney; 2018. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/2123/20325.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Gu Y. Advanced Relaying In Future Wireless Cooperative Networks . [Thesis]. University of Sydney; 2018. Available from: http://hdl.handle.net/2123/20325

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

18. Lu, H. Cooperative Wideband OFDM Communication.

Degree: 2013, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; urn:NBN:nl:ui:24-uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; urn:NBN:nl:ui:24-uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; http://resolver.tudelft.nl/uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb

► In this thesis, major attention is paid to cooperative diversity as an alternative way to achieve spatial diversity when the multiple antenna structure is not… (more)

▼ In this thesis, major attention is paid to cooperative diversity as an alternative way to achieve spatial diversity when the multiple antenna structure is not an option. By adopting the cooperative relay nodes to forward information, we can mitigate the fading effects, increase the capacity, lower the bit-error rate, increase the achievable transmission range, and without sacrificing time and bandwidth efficiency. Orthogonal Frequency Division Multiplexing (OFDM) is a popular multicarrier modulation technique in the modern wireless communications, since it possesses the advantages of frequency parallel transmission, high speed communications and efficient spectrum usage. In this Ph.D. thesis OFDM transmission into the cooperative communication domain is investigated. The diversity gains from both spatial domain and frequency domain are combined and so cooperative communication can further enhance the reliable, high speed transmission, and enable the spectrum efficiency. We propose a cooperative OFDM tall Toeplitz scheme, which guarantees full cooperative diversity, taking outage diversity and multipath diversity into account; in addition it easily combats Carrier Frequency Offsets (CFOs), using Linear Equalizers (LEs) only. Compared to the conventionally used Maximum-Likelihood Equalizers (MLEs), the system complexity is reduced significantly. There are mainly two relaying protocols in cooperative relay networks: Amplify-and-Forward (AF) and Decode-and-Forward (DF). In the research on relay selection and resource allocation issues in cooperative communications, we propose a dynamic optimal combination strategy for the hybrid DF-AF cooperative OFDM communications and removing unsuitable AF relays. Subsequently, we propose relay selection and resource allocation and optimization schemes for cooperative wireless communication networks with interference based on the so called Stackelberg game approach. This approach is a proper game model for solving the relay selection and power allocation problem in a distributed manner, when pricing and power allocation of the relay both are taken into account. As an extension of our research on cooperative wideband communication, we study wideband scale-lag channels as well, present in many ultra-wideband communication applications. In our research, cooperative relaying communication network is set for multi-scale and multi-lag wideband channels. We also provide a dynamic optimal selection strategy for relay selection to take advantage of the multi-relay, multi-scale and multi-lag diversity and maximize the system Bit-Error Rate (BER) performance. Cooperative localization research is growing when larger wireless networks are deployed and more applications are developed which require accurate position information. Therefore, cooperative locationing research becomes an important part of this Ph.D. research on cooperative wideband OFDM communications. In this research, we propose a trigger relay based cooperative localization technique. Because the trigger relay only needs to be… Advisors/Committee Members: Ligthart, L.P..

Subjects/Keywords: cooperative communication; wideband communication; OFDM; cooperative localization

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APA (6^th Edition):

Lu, H. (2013). Cooperative Wideband OFDM Communication. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; urn:NBN:nl:ui:24-uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; urn:NBN:nl:ui:24-uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; http://resolver.tudelft.nl/uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb

Chicago Manual of Style (16^th Edition):

Lu, H. “Cooperative Wideband OFDM Communication.” 2013. Doctoral Dissertation, Delft University of Technology. Accessed March 07, 2021. http://resolver.tudelft.nl/uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; urn:NBN:nl:ui:24-uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; urn:NBN:nl:ui:24-uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; http://resolver.tudelft.nl/uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb.

MLA Handbook (7^th Edition):

Lu, H. “Cooperative Wideband OFDM Communication.” 2013. Web. 07 Mar 2021.

Vancouver:

Lu H. Cooperative Wideband OFDM Communication. [Internet] [Doctoral dissertation]. Delft University of Technology; 2013. [cited 2021 Mar 07]. Available from: http://resolver.tudelft.nl/uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; urn:NBN:nl:ui:24-uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; urn:NBN:nl:ui:24-uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; http://resolver.tudelft.nl/uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb.

Council of Science Editors:

Lu H. Cooperative Wideband OFDM Communication. [Doctoral Dissertation]. Delft University of Technology; 2013. Available from: http://resolver.tudelft.nl/uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; urn:NBN:nl:ui:24-uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; urn:NBN:nl:ui:24-uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb ; http://resolver.tudelft.nl/uuid:9e8d7227-2d9d-443f-b218-25c7bf2c23cb

NSYSU

19. Pu, Jyun-Wei. Joint Distributed Detection and Estimation for Cooperative Communication in Cluster-Based Networks.

Degree: Master, Communications Engineering, 2008, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0811108-164936

► In this thesis, a new scheme based on the concept of compress-and-forward (CF) technique has been proposed. And expectation maximization (EM) algorithm is utilized to… (more)

Subjects/Keywords: compress-and-forward (CF); expectation maximization (EM); channel estimation; cooperative communication

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APA (6^th Edition):

Pu, J. (2008). Joint Distributed Detection and Estimation for Cooperative Communication in Cluster-Based Networks. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0811108-164936

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Pu, Jyun-Wei. “Joint Distributed Detection and Estimation for Cooperative Communication in Cluster-Based Networks.” 2008. Thesis, NSYSU. Accessed March 07, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0811108-164936.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Pu, Jyun-Wei. “Joint Distributed Detection and Estimation for Cooperative Communication in Cluster-Based Networks.” 2008. Web. 07 Mar 2021.

Vancouver:

Pu J. Joint Distributed Detection and Estimation for Cooperative Communication in Cluster-Based Networks. [Internet] [Thesis]. NSYSU; 2008. [cited 2021 Mar 07]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0811108-164936.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pu J. Joint Distributed Detection and Estimation for Cooperative Communication in Cluster-Based Networks. [Thesis]. NSYSU; 2008. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0811108-164936

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

20. Lin, Pin-hsuan. Resource Allocation in Cognitive Radio Networks with Energy Harvesting Secondary Users.

Degree: Master, Communications Engineering, 2016, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0709116-140905

► This thesis investigate in overlay cognitive radio network with cooperative communication. In this system, we consider a pair of primary user and multiple secondary users.… (more)

Subjects/Keywords: cognitive radio; relay selection; power allocation; cooperative communication; energy harvesting

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APA (6^th Edition):

Lin, P. (2016). Resource Allocation in Cognitive Radio Networks with Energy Harvesting Secondary Users. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0709116-140905

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lin, Pin-hsuan. “Resource Allocation in Cognitive Radio Networks with Energy Harvesting Secondary Users.” 2016. Thesis, NSYSU. Accessed March 07, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0709116-140905.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lin, Pin-hsuan. “Resource Allocation in Cognitive Radio Networks with Energy Harvesting Secondary Users.” 2016. Web. 07 Mar 2021.

Vancouver:

Lin P. Resource Allocation in Cognitive Radio Networks with Energy Harvesting Secondary Users. [Internet] [Thesis]. NSYSU; 2016. [cited 2021 Mar 07]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0709116-140905.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lin P. Resource Allocation in Cognitive Radio Networks with Energy Harvesting Secondary Users. [Thesis]. NSYSU; 2016. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0709116-140905

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

21. Li, Jia-Chi. Power Allocation Based on Limited Feedback in DF Cooperative and Cognitive Radio Networks.

Degree: Master, Communications Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803112-183534

► This thesis investigates cooperative communication under the framework of cognitive radio network, which consists of primary and secondary users(PU & SU). The cooperative and cognitive… (more)

Subjects/Keywords: power allocation; cognitive radio network; cooperative communication; limited feedback

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APA (6^th Edition):

Li, J. (2012). Power Allocation Based on Limited Feedback in DF Cooperative and Cognitive Radio Networks. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803112-183534

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Li, Jia-Chi. “Power Allocation Based on Limited Feedback in DF Cooperative and Cognitive Radio Networks.” 2012. Thesis, NSYSU. Accessed March 07, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803112-183534.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Li, Jia-Chi. “Power Allocation Based on Limited Feedback in DF Cooperative and Cognitive Radio Networks.” 2012. Web. 07 Mar 2021.

Vancouver:

Li J. Power Allocation Based on Limited Feedback in DF Cooperative and Cognitive Radio Networks. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 07]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803112-183534.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Li J. Power Allocation Based on Limited Feedback in DF Cooperative and Cognitive Radio Networks. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0803112-183534

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

22. Tsai, Yong-Chun. Robust Design of Precoder and Decoder for Relay-Assisted Decorrelating CDMA Systems with Imperfect CSI.

Degree: Master, Communications Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0825112-153917

► In this paper, we explore a cooperative code-division-multiple-access(CDMA) network. Users cooperate by forwarding each otherâs messages toward the destination. For simplicity, we assume that signal… (more)

Subjects/Keywords: cooperative communication; decorrelation; CDMA; robust precoder and decoder design

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APA (6^th Edition):

Tsai, Y. (2012). Robust Design of Precoder and Decoder for Relay-Assisted Decorrelating CDMA Systems with Imperfect CSI. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0825112-153917

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tsai, Yong-Chun. “Robust Design of Precoder and Decoder for Relay-Assisted Decorrelating CDMA Systems with Imperfect CSI.” 2012. Thesis, NSYSU. Accessed March 07, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0825112-153917.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tsai, Yong-Chun. “Robust Design of Precoder and Decoder for Relay-Assisted Decorrelating CDMA Systems with Imperfect CSI.” 2012. Web. 07 Mar 2021.

Vancouver:

Tsai Y. Robust Design of Precoder and Decoder for Relay-Assisted Decorrelating CDMA Systems with Imperfect CSI. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 07]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0825112-153917.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tsai Y. Robust Design of Precoder and Decoder for Relay-Assisted Decorrelating CDMA Systems with Imperfect CSI. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0825112-153917

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

23. Tsai, I-Tse. On Fountain Codes for Cooperative Systems Using Various Relaying Strategies.

Degree: Master, Communications Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0829112-123036

► In wireless communication, multipath fading distorts the phase and the amplitude of received signals and increases error rate, which degrades causes communication quality. Multiple-input-multiple-output (MIMO)… (more)

Subjects/Keywords: Decode-and-forward; Cooperative communication; Fountain codes; Rateless

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tsai, I. (2012). On Fountain Codes for Cooperative Systems Using Various Relaying Strategies. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0829112-123036

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tsai, I-Tse. “On Fountain Codes for Cooperative Systems Using Various Relaying Strategies.” 2012. Thesis, NSYSU. Accessed March 07, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0829112-123036.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tsai, I-Tse. “On Fountain Codes for Cooperative Systems Using Various Relaying Strategies.” 2012. Web. 07 Mar 2021.

Vancouver:

Tsai I. On Fountain Codes for Cooperative Systems Using Various Relaying Strategies. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 07]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0829112-123036.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tsai I. On Fountain Codes for Cooperative Systems Using Various Relaying Strategies. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0829112-123036

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

24. Yu, Hao-Ting. Lifetime Maximization of Secondary Cooperative Systems in Underlay Cognitive Radio Networks.

Degree: Master, Communications Engineering, 2012, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0830112-160942

► In this thesis, we consider cognitive radio networks (CRN) combined with cooperative transmission, and investigate relay selection and power allocation strategies to maximize network lifetime… (more)

▼ In this thesis, we consider cognitive radio networks (CRN) combined with cooperative transmission, and investigate relay selection and power allocation strategies to maximize network lifetime (NLT). Cognitive radio network enhances spectrum efficiency resource by exploiting capabilities of cognition, learning and coordination against insufficient spectrum resource. In underlay cognitive radio network, however, transmitted energy of secondary user is constrained by interference level observed at primary user (PU). Though cooperation among secondary users (SU), multiple relays from virtual antenna array to improve transmission rate and reliability by exploiting spatial diversity. Most existing works assume that cooperative secondary users are plugged and with infinite energy device. In this thesis, we consider secondary cooperative systems where relays are battery-powered and with finite energy. We will investigate relay-selection schemes to reduce energy consumption of secondary relays and prolong network lifetime under the premises that secondary userâs transmission rate is guaranteed and interference constraint of primary user is met. Our major difference between this work and previous works is the definition of network lifetime, which is defined by the maximum duration that the probability of secondary userâs achievable rate below the guaranteed value, i.e. outage probability, is lower than a predetermined threshold. We proposed four relay-selection methods which take channel state information (CSI) and residual energy information (REI) into considerations to prolong network lifetime. Since the selection metrics of the proposed strategies requires CSI and REI of each individual relay, so the relay-selection can be accomplished in distributed manner through opportunistic sensing. No additional overhead is demanded for information exchange. Advisors/Committee Members: Wen-Jen Huang (committee member), Jyh-Horng Wen (chair), Chao-Kai Wen (chair), Chih-Peng Li (chair).

Subjects/Keywords: relay selection; cognitive radio network; network lifetime; cooperative communication

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Yu, H. (2012). Lifetime Maximization of Secondary Cooperative Systems in Underlay Cognitive Radio Networks. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0830112-160942

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yu, Hao-Ting. “Lifetime Maximization of Secondary Cooperative Systems in Underlay Cognitive Radio Networks.” 2012. Thesis, NSYSU. Accessed March 07, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0830112-160942.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yu, Hao-Ting. “Lifetime Maximization of Secondary Cooperative Systems in Underlay Cognitive Radio Networks.” 2012. Web. 07 Mar 2021.

Vancouver:

Yu H. Lifetime Maximization of Secondary Cooperative Systems in Underlay Cognitive Radio Networks. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 07]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0830112-160942.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yu H. Lifetime Maximization of Secondary Cooperative Systems in Underlay Cognitive Radio Networks. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0830112-160942

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

25. Wang, Zhao-Jie. Noncoherent Detection of Misbehaving Relays in Space-Time Coded Cooperative Networks.

Degree: Master, Communications Engineering, 2011, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-143758

► Cooperative systems exploit spatial diversity to improve communication quality. But system performances could be severely degraded in the existance malicious relay nodes. In this thesis,… (more)

Subjects/Keywords: Security; Misbehavior; Cooperative communication; Channel state information; OSTBC

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APA (6^th Edition):

Wang, Z. (2011). Noncoherent Detection of Misbehaving Relays in Space-Time Coded Cooperative Networks. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-143758

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Zhao-Jie. “Noncoherent Detection of Misbehaving Relays in Space-Time Coded Cooperative Networks.” 2011. Thesis, NSYSU. Accessed March 07, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-143758.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Zhao-Jie. “Noncoherent Detection of Misbehaving Relays in Space-Time Coded Cooperative Networks.” 2011. Web. 07 Mar 2021.

Vancouver:

Wang Z. Noncoherent Detection of Misbehaving Relays in Space-Time Coded Cooperative Networks. [Internet] [Thesis]. NSYSU; 2011. [cited 2021 Mar 07]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-143758.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang Z. Noncoherent Detection of Misbehaving Relays in Space-Time Coded Cooperative Networks. [Thesis]. NSYSU; 2011. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-143758

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Tasmania

26. Jakimowicz, MD. The effect of crisis resource management training on error in the emergency department : a systematic review.

Degree: 2012, University of Tasmania

URL: https://eprints.utas.edu.au/16006/2/whole-ex-pub-mat.pdf ; https://eprints.utas.edu.au/16006/3/whole.pdf

► Background Emergency department clinicians confront problems that are often ill defined, rapidly evolving and have severe consequences. The propensity for error is, therefore, significant. Crisis… (more)

Subjects/Keywords: systematic review; emergency department; emergencies; communication; education; teaching; cooperative behaviour

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jakimowicz, M. (2012). The effect of crisis resource management training on error in the emergency department : a systematic review. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/16006/2/whole-ex-pub-mat.pdf ; https://eprints.utas.edu.au/16006/3/whole.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jakimowicz, MD. “The effect of crisis resource management training on error in the emergency department : a systematic review.” 2012. Thesis, University of Tasmania. Accessed March 07, 2021. https://eprints.utas.edu.au/16006/2/whole-ex-pub-mat.pdf ; https://eprints.utas.edu.au/16006/3/whole.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jakimowicz, MD. “The effect of crisis resource management training on error in the emergency department : a systematic review.” 2012. Web. 07 Mar 2021.

Vancouver:

Jakimowicz M. The effect of crisis resource management training on error in the emergency department : a systematic review. [Internet] [Thesis]. University of Tasmania; 2012. [cited 2021 Mar 07]. Available from: https://eprints.utas.edu.au/16006/2/whole-ex-pub-mat.pdf ; https://eprints.utas.edu.au/16006/3/whole.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jakimowicz M. The effect of crisis resource management training on error in the emergency department : a systematic review. [Thesis]. University of Tasmania; 2012. Available from: https://eprints.utas.edu.au/16006/2/whole-ex-pub-mat.pdf ; https://eprints.utas.edu.au/16006/3/whole.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Cornell University

27. Sirkeci, Birsen. Distributed Cooperative Communication in Large-Scale Wireless Networks.

Degree: 2006, Cornell University

URL: http://hdl.handle.net/1813/3294

► Cooperative communication employs distributed transmission resources at the physical layer as a single radio with spatial diversity in order to increase the performance of wireless… (more)

▼ Cooperative communication employs distributed transmission resources at the physical layer as a single radio with spatial diversity in order to increase the performance of wireless networks. However, node cooperation entails large communication overhead, and distributed protocols that eliminate or reduce the communication overhead are desirable. This dissertation proposes distributed cooperative schemes for wireless ad hoc networks and develops new methods to analyze their performance. First, we study the behavior of distributed cooperative transmission in wireless networks for both point-to-point and broadcasting scenarios. In particular, we analyze the effect of critical network parameters on the number of nodes reached by cooperative transmission. We show that there exists a phase transition in the network behavior: if the decoding threshold is below a critical value, the message is delivered to the intended recipient(s). Otherwise, only a fraction of the nodes is reached. Our approach is based on the idea of continuum approximation, which yields closed-form expressions that are accurate when the network density is high. We next study the optimal power allocation problem for the cooperative broadcast in dense large-scale networks. The transmission order (schedule) and the transmission powers of the relays are designed so that the message reaches the entire network with the minimum possible total power consumption. In general, finding the best scheduling in cooperative broadcast is known to be an NP-complete problem. We show that the optimal scheduling problem can be solved for dense networks, which can be expressed as a continuum of nodes. Finally, we study the design of distributed space-time codes for cooperative communication. With few exceptions, most of the literature on the subject proposes coding rules such that either inter-node communication or a central control unit is required for code assignment. We introduce novel randomized strategies that decentralize the transmission of a space time code from a set of distributed relays. Our simple idea is to let each node transmit an independent random linear combination of the codewords that would have been transmitted by all the elements of a multi-antenna system. We show that the proposed scheme achieves the optimal diversity order.

Subjects/Keywords: cooperative communication; distributed protocols

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Sirkeci, B. (2006). Distributed Cooperative Communication in Large-Scale Wireless Networks. (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/3294

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sirkeci, Birsen. “Distributed Cooperative Communication in Large-Scale Wireless Networks.” 2006. Thesis, Cornell University. Accessed March 07, 2021. http://hdl.handle.net/1813/3294.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sirkeci, Birsen. “Distributed Cooperative Communication in Large-Scale Wireless Networks.” 2006. Web. 07 Mar 2021.

Vancouver:

Sirkeci B. Distributed Cooperative Communication in Large-Scale Wireless Networks. [Internet] [Thesis]. Cornell University; 2006. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1813/3294.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sirkeci B. Distributed Cooperative Communication in Large-Scale Wireless Networks. [Thesis]. Cornell University; 2006. Available from: http://hdl.handle.net/1813/3294

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Cambridge

28. English, Sinéad. Individual variation in cooperative behaviour in meerkats.

Degree: PhD, 2010, University of Cambridge

URL: http://www.dspace.cam.ac.uk/handle/1810/225183https://www.repository.cam.ac.uk/bitstream/1810/225183/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/5/Sinead%20English%20Final%20Thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/3/Sinead%20English%20Final%20Thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/6/Sinead%20English%20Final%20Thesis.pdf.jpg

► Individual variation in cooperation is a striking yet poorly understood feature of many animal societies, particularly in cooperative breeders where individuals assist in the care… (more)

▼ Individual variation in cooperation is a striking yet poorly understood feature of many animal societies, particularly in cooperative breeders where individuals assist in the care of young that are not their own. While previous research on these systems has emphasised the plasticity of helping and how it varies with current environmental and social conditions, in this dissertation I examine how individual variation is constrained and influenced by trade-offs with other behaviours and experiences in early life. I demonstrate that variation in cooperative pup care (babysitting and provisioning) is consistent within individuals over time (Chapter 3). Provisioning is more consistent than babysitting, although the two behaviours are highly correlated within individuals. I then focus on the variation in helping that remains once current factors, such as condition, group size and food availability, are taken into account. In Chapter 4, I explore the possibility that variation in helping can be explained by personality, or consistency in behavioural traits such as exploration or risk-taking. I find little evidence for consistent individual differences in field measures of personality traits, however, with such behaviours instead being group-specific. Early social experiences are known to have important and lasting effects on later fitness and behaviour: in Chapter 5, I demonstrate that, in female meerkats only, growing up in a group with more helpers is correlated with reduced cooperation later in life. This result suggests the importance of future fitness in influencing current cooperative behaviour, as females raised in larger groups are more likely to attain dominance. Finally, I examine the extent to which vocal communication between carers and young is influenced by variation in contributions to cooperation. Females are more sensitive to increased begging rate (Chapter 6), which reflects general sex differences in cooperative behaviour. Carers modify their vocalizations but not their foraging behaviour in the presence of pups, and the way in which they vocalize during provisioning events suggests these calls serve to increase efficiency of prey transfer (Chapter 7).

Subjects/Keywords: Cooperative breeding; Individual variation; Meerkats; Personality; Communication; Parental care

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APA (6^th Edition):

English, S. (2010). Individual variation in cooperative behaviour in meerkats. (Doctoral Dissertation). University of Cambridge. Retrieved from http://www.dspace.cam.ac.uk/handle/1810/225183https://www.repository.cam.ac.uk/bitstream/1810/225183/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/5/Sinead%20English%20Final%20Thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/3/Sinead%20English%20Final%20Thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/6/Sinead%20English%20Final%20Thesis.pdf.jpg

Chicago Manual of Style (16^th Edition):

English, Sinéad. “Individual variation in cooperative behaviour in meerkats.” 2010. Doctoral Dissertation, University of Cambridge. Accessed March 07, 2021. http://www.dspace.cam.ac.uk/handle/1810/225183https://www.repository.cam.ac.uk/bitstream/1810/225183/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/5/Sinead%20English%20Final%20Thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/3/Sinead%20English%20Final%20Thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/6/Sinead%20English%20Final%20Thesis.pdf.jpg.

MLA Handbook (7^th Edition):

English, Sinéad. “Individual variation in cooperative behaviour in meerkats.” 2010. Web. 07 Mar 2021.

Vancouver:

English S. Individual variation in cooperative behaviour in meerkats. [Internet] [Doctoral dissertation]. University of Cambridge; 2010. [cited 2021 Mar 07]. Available from: http://www.dspace.cam.ac.uk/handle/1810/225183https://www.repository.cam.ac.uk/bitstream/1810/225183/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/5/Sinead%20English%20Final%20Thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/3/Sinead%20English%20Final%20Thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/6/Sinead%20English%20Final%20Thesis.pdf.jpg.

Council of Science Editors:

English S. Individual variation in cooperative behaviour in meerkats. [Doctoral Dissertation]. University of Cambridge; 2010. Available from: http://www.dspace.cam.ac.uk/handle/1810/225183https://www.repository.cam.ac.uk/bitstream/1810/225183/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/5/Sinead%20English%20Final%20Thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/3/Sinead%20English%20Final%20Thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/225183/6/Sinead%20English%20Final%20Thesis.pdf.jpg

Iowa State University

29. Malani, Navneet. Soft Prioritized Network Coding in Multiple Access Relay Networks.

Degree: 2011, Iowa State University

URL: https://lib.dr.iastate.edu/etd/12140

► We propose soft prioritized network coding techniques that provide a variable quality of service (QoS) to different nodes in multiple access relay networks. The basic… (more)

Subjects/Keywords: Cooperative Communication; Network Coding; Relay; Wireless; Electrical and Computer Engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Malani, N. (2011). Soft Prioritized Network Coding in Multiple Access Relay Networks. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/12140

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Malani, Navneet. “Soft Prioritized Network Coding in Multiple Access Relay Networks.” 2011. Thesis, Iowa State University. Accessed March 07, 2021. https://lib.dr.iastate.edu/etd/12140.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Malani, Navneet. “Soft Prioritized Network Coding in Multiple Access Relay Networks.” 2011. Web. 07 Mar 2021.

Vancouver:

Malani N. Soft Prioritized Network Coding in Multiple Access Relay Networks. [Internet] [Thesis]. Iowa State University; 2011. [cited 2021 Mar 07]. Available from: https://lib.dr.iastate.edu/etd/12140.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Malani N. Soft Prioritized Network Coding in Multiple Access Relay Networks. [Thesis]. Iowa State University; 2011. Available from: https://lib.dr.iastate.edu/etd/12140

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rice University

30. Middleton, Gareth B. Efficient Resource Allocation in Multiflow Wireless Networks.

Degree: PhD, Engineering, 2011, Rice University

URL: http://hdl.handle.net/1911/70353

► We consider the problem of allocating resources in large wireless net- works in which multiple information flows must be accommodated. In particular, we seek a… (more)

▼ We consider the problem of allocating resources in large wireless net- works in which multiple information flows must be accommodated. In particular, we seek a method for selecting schedules, routes, and power allocations for networks with terminals capable of user-cooperation at the signal level. To that end, we adopt a general information-theoretic communications model, in which the datarate of a wireless link is purely a function of transmission power, pathloss and interference. We begin by studying the case of resource allocation when only point-to-point links are available. The problem is NP-hard in this case, requiring an exponentially-complex exhaustive search to guarantee an optimal solution. This is prohibitively difficult for anything but the smallest of networks, leading us to approximate the problem using a decomposition approach. We construct the solution iteratively, developing polynomial-time algorithms to optimally allocate resources on a per-frame basis. We then update the network graph to reflect the resources consumed by the allocated frame. To manage this decomposition, we present a novel tool, termed the Network-Flow Interaction Chart. By representing the network in both space and time, our techniques trade off interference with throughput for each frame, offering considerable performance gains over schemes of similar complexity. Recognizing that our approach requires a large amount of overhead, we go on to develop a method in which it may be decentralized. We find that while the overhead is considerably lower, the limited solution space results in suboptimal solutions in a throughput sense. We conclude with a generalization of the Network-Flow Interaction Chart to address cooperative resource allocation. We represent cooperative links using "metanodes," which are made available to the allocation algorithms alongside point-to-point links and will be selected only if they offer higher throughput. The data-carrying capability of the cooperative links is modeled using Decode-and-Forward achievable rates, which are functions of transmit power and interference, and so may be incorporated directly into our framework. We demonstrate that allocations incorporating cooperation results in significant performance gains as compared to using point-to-point links alone. Advisors/Committee Members: Aazhang, Behnaam (advisor).

Subjects/Keywords: Applied sciences; Resource allocation; Wireless networks; Cooperative communication; Routing; Electrical engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Middleton, G. B. (2011). Efficient Resource Allocation in Multiflow Wireless Networks. (Doctoral Dissertation). Rice University. Retrieved from http://hdl.handle.net/1911/70353

Chicago Manual of Style (16^th Edition):

Middleton, Gareth B. “Efficient Resource Allocation in Multiflow Wireless Networks.” 2011. Doctoral Dissertation, Rice University. Accessed March 07, 2021. http://hdl.handle.net/1911/70353.

MLA Handbook (7^th Edition):

Middleton, Gareth B. “Efficient Resource Allocation in Multiflow Wireless Networks.” 2011. Web. 07 Mar 2021.

Vancouver:

Middleton GB. Efficient Resource Allocation in Multiflow Wireless Networks. [Internet] [Doctoral dissertation]. Rice University; 2011. [cited 2021 Mar 07]. Available from: http://hdl.handle.net/1911/70353.

Council of Science Editors:

Middleton GB. Efficient Resource Allocation in Multiflow Wireless Networks. [Doctoral Dissertation]. Rice University; 2011. Available from: http://hdl.handle.net/1911/70353

Open Access Theses and Dissertations