subject:(Spectral interference)

Rochester Institute of Technology

1. Kruschwitz, Jennifer D. T. Specialized Color Targets for Spectral Reflectance Reconstruction of Magnified Images.

Degree: PhD, 2015, Rochester Institute of Technology

URL: https://scholarworks.rit.edu/theses/8671

► Digital images are used almost exclusively instead of film to capture visual information across many scientific fields. The colorimetric color representation within these digital… (more)

Subjects/Keywords: Color target; Imaging; Microscopy; Optical interference coatings; Spectral reconstruction; Specular highlight

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

APA (6^th Edition):

Kruschwitz, J. D. T. (2015). Specialized Color Targets for Spectral Reflectance Reconstruction of Magnified Images. (Doctoral Dissertation). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/8671

Chicago Manual of Style (16^th Edition):

Kruschwitz, Jennifer D T. “Specialized Color Targets for Spectral Reflectance Reconstruction of Magnified Images.” 2015. Doctoral Dissertation, Rochester Institute of Technology. Accessed February 28, 2021. https://scholarworks.rit.edu/theses/8671.

MLA Handbook (7^th Edition):

Kruschwitz, Jennifer D T. “Specialized Color Targets for Spectral Reflectance Reconstruction of Magnified Images.” 2015. Web. 28 Feb 2021.

Vancouver:

Kruschwitz JDT. Specialized Color Targets for Spectral Reflectance Reconstruction of Magnified Images. [Internet] [Doctoral dissertation]. Rochester Institute of Technology; 2015. [cited 2021 Feb 28]. Available from: https://scholarworks.rit.edu/theses/8671.

Council of Science Editors:

Kruschwitz JDT. Specialized Color Targets for Spectral Reflectance Reconstruction of Magnified Images. [Doctoral Dissertation]. Rochester Institute of Technology; 2015. Available from: https://scholarworks.rit.edu/theses/8671

University of Tennessee – Knoxville

2. Bull, Nora Dianne. An Innovative Approach to Johnson Noise Thermometry by Means of Spectral Estimation.

Degree: 2016, University of Tennessee – Knoxville

URL: https://trace.tennessee.edu/utk_graddiss/3897

► Instrumentation in a nuclear power plant is critical in monitoring the stability and safety levels of a reactor. Temperature is a key measurement performed on… (more)

▼ Instrumentation in a nuclear power plant is critical in monitoring the stability and safety levels of a reactor. Temperature is a key measurement performed on the core of a reactor to control the power output and sustain a safe thermal margin. If there is a dramatic change in temperature, failure is likely to follow if action is not taken to cool the system. Traditionally, to measure the temperature of a reactor, several resistance temperature detectors are placed in predefined locations on the system. Resistance temperature detectors (RTD) are typically platinum coiled wire wrapped around a ceramic cylinder and encased in a metal sheath. Due to the harsh environment of nuclear reactors, the RTDs degrade and their resistance measurements drift over time. This drift in resistance can be misunderstood as a drift in reactor temperature. In the past, the RTDs would be serviced every few years either through calibration or replacement. To service the RTDs the reactor is shut down and a person is sent into a dangerous environment. Utilizing Johnson Noise Thermometry (JNT) will reduce the occurrences of service needed for RTDs and provide a high- accuracy temperature measurement. JNT is a first order fundamental expression of temperature invulnerable to drift in the RTD’s physical condition. The signal processing behind JNT is presented in the following document. Spectral Estimation methods are utilized in order to remove electromagnetic interference (EMI) from the JNT measurement. These methods are unique to this dissertation. The EMI estimation method is modeled and simulation results are presented. The modeling of the EMI estimation involves locating EMI, analysis of EMI effects, and removal without bias. Finally, results from numerical and experimental verification are presented. The research presented here is important to furthering the future of the nuclear industry for several reasons. With this technology applied to existing systems reactor shut-down time can be decreased, technicians limit their exposure to dangerous radiation zones, and financial support for lengthy shut-downs is saved. The instrumentation community will benefit through the innovation of signal processing for very small signal versus noise interference.

Subjects/Keywords: spectral estimation; probability density function; power spectral density; electromagnetic interference; EMI removal; Johnson Noise thermometry; Signal Processing

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

APA (6^th Edition):

Bull, N. D. (2016). An Innovative Approach to Johnson Noise Thermometry by Means of Spectral Estimation. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/3897

Chicago Manual of Style (16^th Edition):

Bull, Nora Dianne. “An Innovative Approach to Johnson Noise Thermometry by Means of Spectral Estimation.” 2016. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed February 28, 2021. https://trace.tennessee.edu/utk_graddiss/3897.

MLA Handbook (7^th Edition):

Bull, Nora Dianne. “An Innovative Approach to Johnson Noise Thermometry by Means of Spectral Estimation.” 2016. Web. 28 Feb 2021.

Vancouver:

Bull ND. An Innovative Approach to Johnson Noise Thermometry by Means of Spectral Estimation. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 2016. [cited 2021 Feb 28]. Available from: https://trace.tennessee.edu/utk_graddiss/3897.

Council of Science Editors:

Bull ND. An Innovative Approach to Johnson Noise Thermometry by Means of Spectral Estimation. [Doctoral Dissertation]. University of Tennessee – Knoxville; 2016. Available from: https://trace.tennessee.edu/utk_graddiss/3897

Anna University

3. Malleswari M. Design and performance analysis of Some novel code families for SAC OCDMA communication systems;.

Degree: Design and performance analysis of Some novel code families for SAC OCDMA communication systems, 2015, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/35509

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Optical code division multiple access OCDMA is a novel kind newlineof spread spectrum technology in the field of optical communication research newlineIt combines the large… (more)

Subjects/Keywords: Multi user interference; Optical code division multiple access; Phase induced intensity noise; spectral amplitude coding optical

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APA (6^th Edition):

M, M. (2015). Design and performance analysis of Some novel code families for SAC OCDMA communication systems;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/35509

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):

M, Malleswari. “Design and performance analysis of Some novel code families for SAC OCDMA communication systems;.” 2015. Thesis, Anna University. Accessed February 28, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/35509.

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

MLA Handbook (7^th Edition):

M, Malleswari. “Design and performance analysis of Some novel code families for SAC OCDMA communication systems;.” 2015. Web. 28 Feb 2021.

Vancouver:

M M. Design and performance analysis of Some novel code families for SAC OCDMA communication systems;. [Internet] [Thesis]. Anna University; 2015. [cited 2021 Feb 28]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/35509.

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

Council of Science Editors:

M M. Design and performance analysis of Some novel code families for SAC OCDMA communication systems;. [Thesis]. Anna University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/35509

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

4. Medjahdi, Yahia. Interference modeling and performance analysis of asynchronous OFDM and FBMC wireless communication systems : Modélisation d’interférence et analyse des performances des systèmes OFDM/FBMC pour les communications sans fil asynchrones.

Degree: Docteur es, Lasers, Métrologie, Communications, 2012, Paris, CNAM

URL: http://www.theses.fr/2012CNAM0815

►

Actuellement, les techniques multiporteuses sont largement utilisées dans les systèmes de transmission grâce à leur robustesse aux effets de trajets multiples et à leur implémentation… (more)

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Actuellement, les techniques multiporteuses sont largement utilisées dans les systèmes de transmission grâce à leur robustesse aux effets de trajets multiples et à leur implémentation efficace utilisant des FFTs. L'OFDM (orthogonal frequency division multiplexing) est un type de modulation multiporteuse qui consiste à subdiviser un flux de données à très haut débit en plusieurs flux élémentaires à bas-débit qui sont transmis sur différentes sous-porteuses orthogonales. Récemment, une technique multiporteuse à base de bancs de filtres (FBMC) a été proposée comme une alternative permettant d'offrir quelques avantages par rapport à l'OFDM. Un des principaux avantages est l'amélioration de l'efficacité spectrale grâce à l'absence du préfixe cyclique (CP) et aux formes d'onde bien localisées en temps et en fréquence.Contrairement à ce qui est souvent supposé dans la littérature, l'asynchronisme existe intrinsèquement dans un bon nombre de systèmes de communication à cause de multiples facteurs tels que les délais de propagation et la distribution géographique des utilisateurs. Cet asynchronisme peut engendrer une perte d'orthogonalité entre les sous-porteuses qui peut se traduire par l'apparition d'interférences asynchrones causant à leurs tours une dégradation des performances du système. La modélisation de cette interférence présente un enjeu important dans la conception des systèmes de communication.Dans cette thèse, nous analysons l'impact de la désynchronisation temporelle sur les performances de l'OFDM et de la FBMC. Tout d'abord, nous présentons un modèle global permettant la caractérisation et l'analyse de l'interférence dans les systèmes multiporteuses asynchrones. Une nouvelle famille de tables d'interférence est proposée tenant compte du décalage temporel ainsi que de la distance spectrale entre les sous-porteuses interférente et victime. Les termes de ces tables sont calculés pour CP-OFDM et FBMC avec les deux formes d'onde IOTA et PHYDYAS. L'impact de l'interférence asynchrone sur le taux d'erreur (BER) et sur l'efficacité spectrale de l'OFDM/FBMC est examiné. En se basant sur les fonctions génératrices des moments de la puissance d'interférence, nous avons établi des expressions analytiques simples du BER et de l'efficacité spectrale moyens. Ces dernières expressions réduisent d'une façon considérable la complexité de l'évaluation des performances. Cette étude théorique a été consolidée et validée par des résultats de simulation pour différents scénarios où nous avons démontré que contrairement à l'OFDM, les modulations FBMC sont moins sensible à la désynchronisation temporelle grâce à la bonne localisation des formes d'ondes utilisées.

Multicarrier systems are widely used today due to their robustness to multipath effects and efficient implementation using FFT. Orthogonal Frequency Division Multiplexing (OFDM) system is a class of multicarrier modulation which consists of splitting up a wide-band signal at a high symbol rate into several lower rate signals, each one occupying a narrower band. System…

Advisors/Committee Members: Terré, Michel (thesis director), Le Ruyet, Didier (thesis director), Roviras, Daniel (thesis director).

Subjects/Keywords: Ofdm; Fbmc; Désynchronisation temporelle; Interférence; Ber; Efficacité spectrale; Ofdm; Fbmc; Timing asynchronism; Interference; Ber; Spectral efficiency; 384.5

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

APA (6^th Edition):

Medjahdi, Y. (2012). Interference modeling and performance analysis of asynchronous OFDM and FBMC wireless communication systems : Modélisation d’interférence et analyse des performances des systèmes OFDM/FBMC pour les communications sans fil asynchrones. (Doctoral Dissertation). Paris, CNAM. Retrieved from http://www.theses.fr/2012CNAM0815

Chicago Manual of Style (16^th Edition):

Medjahdi, Yahia. “Interference modeling and performance analysis of asynchronous OFDM and FBMC wireless communication systems : Modélisation d’interférence et analyse des performances des systèmes OFDM/FBMC pour les communications sans fil asynchrones.” 2012. Doctoral Dissertation, Paris, CNAM. Accessed February 28, 2021. http://www.theses.fr/2012CNAM0815.

MLA Handbook (7^th Edition):

Medjahdi, Yahia. “Interference modeling and performance analysis of asynchronous OFDM and FBMC wireless communication systems : Modélisation d’interférence et analyse des performances des systèmes OFDM/FBMC pour les communications sans fil asynchrones.” 2012. Web. 28 Feb 2021.

Vancouver:

Medjahdi Y. Interference modeling and performance analysis of asynchronous OFDM and FBMC wireless communication systems : Modélisation d’interférence et analyse des performances des systèmes OFDM/FBMC pour les communications sans fil asynchrones. [Internet] [Doctoral dissertation]. Paris, CNAM; 2012. [cited 2021 Feb 28]. Available from: http://www.theses.fr/2012CNAM0815.

Council of Science Editors:

Medjahdi Y. Interference modeling and performance analysis of asynchronous OFDM and FBMC wireless communication systems : Modélisation d’interférence et analyse des performances des systèmes OFDM/FBMC pour les communications sans fil asynchrones. [Doctoral Dissertation]. Paris, CNAM; 2012. Available from: http://www.theses.fr/2012CNAM0815

University of Minnesota

5. Tsuda, Schuyler. Tinguely.

Degree: PhD, Music, 2010, University of Minnesota

URL: http://purl.umn.edu/92841

► Tinguely is a musical composition scored for strings, percussion and built instruments that focuses on the acoustic phenomena of interference and beats. Instrumental techniques have… (more)

Subjects/Keywords: Built instruments; Interference; Jean Tinguely; Multiphonics; Prepared; Spectral; Music

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

APA (6^th Edition):

Tsuda, S. (2010). Tinguely. (Doctoral Dissertation). University of Minnesota. Retrieved from http://purl.umn.edu/92841

Chicago Manual of Style (16^th Edition):

Tsuda, Schuyler. “Tinguely.” 2010. Doctoral Dissertation, University of Minnesota. Accessed February 28, 2021. http://purl.umn.edu/92841.

MLA Handbook (7^th Edition):

Tsuda, Schuyler. “Tinguely.” 2010. Web. 28 Feb 2021.

Vancouver:

Tsuda S. Tinguely. [Internet] [Doctoral dissertation]. University of Minnesota; 2010. [cited 2021 Feb 28]. Available from: http://purl.umn.edu/92841.

Council of Science Editors:

Tsuda S. Tinguely. [Doctoral Dissertation]. University of Minnesota; 2010. Available from: http://purl.umn.edu/92841

University of Rochester

6. Leidner, Jordan Palmer. Spatial and spectral brightness enhancement of high power semiconductor lasers.

Degree: PhD, 2015, University of Rochester

URL: http://hdl.handle.net/1802/29595

► The performance of high-power broad-area diode lasers is inhibited by beam filamentation induced by free-carrier-based self-focusing. The resulting beam degradation limits their usage in high-brightness,… (more)

Subjects/Keywords: Beam quality; Broad-area lasers; High power; Multi-mode interference; Optical fiber pumping; Semiconductor laser; Spectral narrowing; Spatial filtering; Coherent combination; Catastrophic optical damage

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

APA (6^th Edition):

Leidner, J. P. (2015). Spatial and spectral brightness enhancement of high power semiconductor lasers. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/29595

Chicago Manual of Style (16^th Edition):

Leidner, Jordan Palmer. “Spatial and spectral brightness enhancement of high power semiconductor lasers.” 2015. Doctoral Dissertation, University of Rochester. Accessed February 28, 2021. http://hdl.handle.net/1802/29595.

MLA Handbook (7^th Edition):

Leidner, Jordan Palmer. “Spatial and spectral brightness enhancement of high power semiconductor lasers.” 2015. Web. 28 Feb 2021.

Vancouver:

Leidner JP. Spatial and spectral brightness enhancement of high power semiconductor lasers. [Internet] [Doctoral dissertation]. University of Rochester; 2015. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/1802/29595.

Council of Science Editors:

Leidner JP. Spatial and spectral brightness enhancement of high power semiconductor lasers. [Doctoral Dissertation]. University of Rochester; 2015. Available from: http://hdl.handle.net/1802/29595

7. Carvalio Junior, Dagoberto. Uma plataforma para avaliar a degradação da vazão causada por interferência espectral em redes sem fio padrão IEEE 802.11.

Degree: Mestrado, Ciências de Computação e Matemática Computacional, 2010, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/55/55134/tde-30032011-091330/ ;

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A interferência espectral gera patologias nos sistemas de comunicação sem fio (wireless), como por exemplo, quedas na comunicação e degradação na vazão. O espectro de… (more)

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A interferência espectral gera patologias nos sistemas de comunicação sem fio (wireless), como por exemplo, quedas na comunicação e degradação na vazão. O espectro de RF (rádio frequência) é fiscalizado e controlado por órgãos governamentais, no entanto as redes sem fio padrão IEEE 802.11, conhecidas por WLANs (Wireless Local Area Networks), trabalham em faixas espectrais não licenciadas, conhecidas por ISM. Estas redes estão cada vez mais presentes nos ambientes comerciais e residenciais, contribuindo para questões de ubiquidade e acesso à Internet. Com este aumento expressivo, a cobertura espectral está cada vez mais densa. A densidade elevada de sinais aponta para a saturação do espectro ISM, causando interferências mútuas das redes IEEE 802.11. O objetivo deste trabalho é analisar a cobertura do espectro, por redes WLANs, e avaliar quedas de vazão ocasionadas por interferências espectrais, variando no espaço e no tempo. Dois cenários foram mapeados para analisar as degradações, um com baixa a média e outro com alta densidade e complexidade. O objetivo da criação desses cenários foi comparar as degradações causadas pelas interferências em ambientes diferentes, na ocupação, na utilização e na propagação de sinais de redes WLANs. Através dos resultados obtidos, um ciclo de vida de gerenciamento do espectro de redes padrão 802.11 foi proposto. Este ciclo contribui para avaliar e classificar o estado de uma rede em densa, não densa, complexa e não complexa, visto que alterações de ocupação do espectro no espaço e no tempo são plausíveis de ocorrerem. Conclui-se que os impactos da sobreposição total do canal, por fontes 802.11, não são suficientes para a substancial degradação da vazão em ambientes de baixa a média complexidade. Em ambientes com alta densidade e complexidade as degradações são mais evidentes, principalmente quando ocorrem perturbações vindas de duas fontes adjacentes

The spectral interference generates pathologies in wireless communication systems (wireless), such as declines in communication and degradation in flow. The spectrum of RF (radio frequency) is supervised and controlled by government agencies, however the wireless standard IEEE 802.11, known as WLANs (Wireless Local Area Networks), work in unlicensed spectrum bands, known as ISM. These networks are increasingly involved in commercial and residential environments, contributing to issues and ubiquity of Internet access. With the significant increase in these networks, the spectral coverage is increasingly dense. The high density of signals pointing to the saturation of the ISM spectrum, causing mutual interference of IEEE 802.11 networks. The aim of this study is to analyze the coverage of the spectrum, for WLANs, and evaluate the flow falls caused by spectral interferences, varying in space and time. Two scenarios were mapped to examine the degradations, with a low to medium and one with high density and complexity. The purpose of creating these scenarios was to compare the degradation caused by interference in different environments,…

Advisors/Committee Members: Moreira, Edson dos Santos.

Subjects/Keywords: Gerenciamento de rede; IEEE 802.11.WiFi Banda ISM; IEEE 802.11.WiFi ISM; Interferência espectral; Network management; Rede sem fio; Rede Wireless; Spectral interference; Wireless network

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

APA (6^th Edition):

Carvalio Junior, D. (2010). Uma plataforma para avaliar a degradação da vazão causada por interferência espectral em redes sem fio padrão IEEE 802.11. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/55/55134/tde-30032011-091330/ ;

Chicago Manual of Style (16^th Edition):

Carvalio Junior, Dagoberto. “Uma plataforma para avaliar a degradação da vazão causada por interferência espectral em redes sem fio padrão IEEE 802.11.” 2010. Masters Thesis, University of São Paulo. Accessed February 28, 2021. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-30032011-091330/ ;.

MLA Handbook (7^th Edition):

Carvalio Junior, Dagoberto. “Uma plataforma para avaliar a degradação da vazão causada por interferência espectral em redes sem fio padrão IEEE 802.11.” 2010. Web. 28 Feb 2021.

Vancouver:

Carvalio Junior D. Uma plataforma para avaliar a degradação da vazão causada por interferência espectral em redes sem fio padrão IEEE 802.11. [Internet] [Masters thesis]. University of São Paulo; 2010. [cited 2021 Feb 28]. Available from: http://www.teses.usp.br/teses/disponiveis/55/55134/tde-30032011-091330/ ;.

Council of Science Editors:

Carvalio Junior D. Uma plataforma para avaliar a degradação da vazão causada por interferência espectral em redes sem fio padrão IEEE 802.11. [Masters Thesis]. University of São Paulo; 2010. Available from: http://www.teses.usp.br/teses/disponiveis/55/55134/tde-30032011-091330/ ;

National University of Ireland – Galway

8. Neuhaus, Kai. The multi-spectral signal properties of multiple reference optical coherence tomography .

Degree: 2019, National University of Ireland – Galway

URL: http://hdl.handle.net/10379/15318

► Efforts to reduce the size and costs of optical coherence tomography systems (OCT) for consumer applications, in general, focus on Fourier-domain OCT, due to its… (more)

▼ Efforts to reduce the size and costs of optical coherence tomography systems (OCT) for consumer applications, in general, focus on Fourier-domain OCT, due to its potential to be integrated on an optical chip, implementing the interferometer and the spectrometer together as a compact system. An alternative and near-term solution is multiple reference OCT. This technique utilizes a partial mirror in the reference arm to enhance the axial imaging depth of traditional time-domain OCT. The motivation of this thesis is to investigate the performance and sensitivity characteristics of multiple reference OCT in comparison to time-domain OCT. Due to the partial mirror, the light is recirculated multiple times and generates additional reference wavefronts reflected on the reference mirror with increasing path delays. A fascinating consequence of this is the frequency-dependence of each reflection, which draws parallels with Fourier-domain OCT. Hence, the spectral properties of the interference signals are studied in more detail. This thesis guides the reader towards the subject of OCT covering the fundamentals of OCT and the theoretical basis of multiple reference OCT. The spectral properties of the interference signals of MR-OCT are further explained, and it is shown that the increasing path delay in the reference arm of the Michelson interferometer causes an increase of the frequency similar to the increasing frequency vs. depth in the sample for Fourier-domain OCT. The spacing between the partial mirror and the scanning mirror, in conjunction with the scanning range and velocity, play a unique role in controlling a variety of parameters, which are not available in any other OCT system. Signal simulations are provided for some theoretical aspects of interest and compared with signals measured on a sample mirror. For each of the multiple interference signals, the sensitivity was measured, and the results are compared to conventional time-domain OCT. The higher orders of reflections show some non-linear characteristics that may reduce dynamic range and sensitivity. Zemax was used to simulate the beam propagation in the optical system. The impact of the reference mirror scanning parameters on the overall system characteristics was examined. Further, a novel en-face scanning modality is described that can increase the data acquisition speed due to the reduction of the width of the scanned depth layers and demonstrates the flexibility of the scanning protocol of MR-OCT that would otherwise require extensive efforts with other OCT systems. Some more specific aspects of the signal and image processing are discussed that have relevance for the image reconstruction of the multiple signal segments originating from the recirculated light due to the partial mirror in the reference arm. So far the results in this thesis have shown that the multiple interference frequencies originate from an actual change of the source spectrum due to the Doppler effect caused by the scanning mirror. Under certain conditions,… Advisors/Committee Members: Leahy, Martin (advisor).

Subjects/Keywords: optical coherence tomography; Michelson interferometer; multiple reference optical coherence tomography; spectral signal property; time-domain optical coherence tomography; low-cost optical coherence tomography; interference signal simulation; Python; multiple scanned depth regions; Fourier and spectral domain optical coherence tomography; layered scanning MR-OCT; low coherence interferometry; simultaneous en-face scanning; Physics; Science

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

APA (6^th Edition):

Neuhaus, K. (2019). The multi-spectral signal properties of multiple reference optical coherence tomography . (Thesis). National University of Ireland – Galway. Retrieved from http://hdl.handle.net/10379/15318

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):

Neuhaus, Kai. “The multi-spectral signal properties of multiple reference optical coherence tomography .” 2019. Thesis, National University of Ireland – Galway. Accessed February 28, 2021. http://hdl.handle.net/10379/15318.

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

MLA Handbook (7^th Edition):

Neuhaus, Kai. “The multi-spectral signal properties of multiple reference optical coherence tomography .” 2019. Web. 28 Feb 2021.

Vancouver:

Neuhaus K. The multi-spectral signal properties of multiple reference optical coherence tomography . [Internet] [Thesis]. National University of Ireland – Galway; 2019. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/10379/15318.

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

Council of Science Editors:

Neuhaus K. The multi-spectral signal properties of multiple reference optical coherence tomography . [Thesis]. National University of Ireland – Galway; 2019. Available from: http://hdl.handle.net/10379/15318

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

9. Yassin, Mohamad. Inter-cell interference coordination in wireless networks : Coordination des interférences intercellulaires dans les réseaux sans-fil.

Degree: Docteur es, Informatique, 2015, Rennes 1; Université Saint-Joseph (Beyrouth)

URL: http://www.theses.fr/2015REN1S106

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Grâce aux avancées technologiques dans le domaine des réseaux cellulaires et des équipements mobiles, le nombre d'applications multimédia à haut débit dans les réseaux mobiles… (more)

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Grâce aux avancées technologiques dans le domaine des réseaux cellulaires et des équipements mobiles, le nombre d'applications multimédia à haut débit dans les réseaux mobiles ne cesse d'augmenter. On prévoit que le trafic de données dans les réseaux mobiles en 2017 sera 13 fois plus important que celui en 2012. Pour satisfaire aux besoins des équipements mobiles, de nouvelles approches pour la gestion des ressources radio et des puissances de transmission sont requises.Dans le cadre de cette thèse, on s'intéresse à proposer des solutions pour remédier aux problèmes des interférences intercellulaires dans les réseaux mobiles de dernière génération. Nous enquêtons d'une manière exhaustive les différentes techniques de coordination des interférences intercellulaires existantes. Ces techniques sont qualitativement comparées, puis classées selon le taux de coopération requis entre les différentes stations de base, mais aussi selon leurs principes de fonctionnement. Nous abordons également le problème multicellulaire d'allocation des ressources et des puissances de transmission d'une manière centralisée. Nous formulons ce problème d'optimisation centralisé, puis nous le décomposons en deux sous-problèmes indépendants : l'allocation de ressources et l'allocation des puissances de transmission. De plus, une approche distribuée basée sur la théorie des jeux est proposée pour l'allocation des puissances de transmission. Les techniques centralisées de minimisation des interférences intercellulaires offrent la solution optimale au prix d'une grande charge de signalisation. Par contre, les solutions décentralisées réduisent le trafic de signalisation sans garantir l'optimalité de la solution obtenue. Nous proposons ensuite une heuristique de contrôle de puissance qui modifie localement l'allocation des puissances de transmission de manière à éviter le gaspillage d'énergie et pour réduire les interférences ressenties par les utilisateurs des stations de base voisines. Nous proposons également une technique autonome qui gère la distribution des ressources radio entre les différentes zones de chaque cellule. Cette technique répond aux besoins des utilisateurs dans chaque zone en adaptant la distribution des ressources d'une manière dynamique. Nous abordons aussi le compromis entre les techniques de gestion d'interférences intercellulaires centralisées et décentralisées. Nous proposons une approche hybride où l'allocation des ressources radio et des puissances de transmission est faite d'une manière coopérative entre les différentes cellules. Dans un premier lieu, les cellules voisines collaborent afin d'ajuster les puissances de transmission allouées aux ressources radio. Ensuite, la distribution des ressources entre les différentes zones de chaque cellule est modifiée localement, selon les besoins des utilisateurs dans chaque zone.

The exponentially increasing demand for mobile broadband communications have led to the dense deployment of cellular networks with aggressive frequency reuse patterns. The future Fifth Generation…

Advisors/Committee Members: Cousin, Bernard (thesis director), Lahoud, Samer (thesis director).

Subjects/Keywords: Interférences; Réseaux sans-Fil; Allocation des ressources; Efficacité spectrale; Efficacité énergétique; Inter-Cell interference coordination; Ofdma; 3gpp lte; 5g; Dense small cell networks; Spectral efficiency; Energy efficiency; Resource allocation; Power allocation; Throughput fairness

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

APA (6^th Edition):

Yassin, M. (2015). Inter-cell interference coordination in wireless networks : Coordination des interférences intercellulaires dans les réseaux sans-fil. (Doctoral Dissertation). Rennes 1; Université Saint-Joseph (Beyrouth). Retrieved from http://www.theses.fr/2015REN1S106

Chicago Manual of Style (16^th Edition):

Yassin, Mohamad. “Inter-cell interference coordination in wireless networks : Coordination des interférences intercellulaires dans les réseaux sans-fil.” 2015. Doctoral Dissertation, Rennes 1; Université Saint-Joseph (Beyrouth). Accessed February 28, 2021. http://www.theses.fr/2015REN1S106.

MLA Handbook (7^th Edition):

Yassin, Mohamad. “Inter-cell interference coordination in wireless networks : Coordination des interférences intercellulaires dans les réseaux sans-fil.” 2015. Web. 28 Feb 2021.

Vancouver:

Yassin M. Inter-cell interference coordination in wireless networks : Coordination des interférences intercellulaires dans les réseaux sans-fil. [Internet] [Doctoral dissertation]. Rennes 1; Université Saint-Joseph (Beyrouth); 2015. [cited 2021 Feb 28]. Available from: http://www.theses.fr/2015REN1S106.

Council of Science Editors:

Yassin M. Inter-cell interference coordination in wireless networks : Coordination des interférences intercellulaires dans les réseaux sans-fil. [Doctoral Dissertation]. Rennes 1; Université Saint-Joseph (Beyrouth); 2015. Available from: http://www.theses.fr/2015REN1S106

University of Oulu

10. Nguyen, V. T. (Vu Thuy Dan). Transmission strategies for full-duplex multiuser MIMO communications systems.

Degree: 2016, University of Oulu

URL: http://urn.fi/urn:isbn:9789526211374

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Abstract This thesis considers data transmission in a full-duplex (FD) multiuser multiple-input multiple-output (MU-MIMO) system, where a FD capable base station (BS) bidirectionally communicates with… (more)

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Abstract This thesis considers data transmission in a full-duplex (FD) multiuser multiple-input multiple-output (MU-MIMO) system, where a FD capable base station (BS) bidirectionally communicates with multiple half-duplex (HD) users in downlink (DL) and uplink (UL) channels using the same radio resources. The main challenge in FD communications is how to deal with the self-interference (SI) between transmit and receive antennas at the BS. The work carried out in the thesis is motivated by recent advanced techniques in hardware design demonstrating that the SI can be suppressed to a degree that possibly allows for FD transmission in cellular networks. In particular, this thesis attempts to explore the potential gains in terms of the spectral efficiency (SE) and energy efficiency (EE) that can be brought by the FD MU-MIMO model. As the first of its kinds, the thesis aims to present a solid mathematical framework and report interesting results that foster research on wireless communications in general and FD communications in particular. For the FD system of interest the major challenge is due to the SI and co-channel interference from users in the UL channel to the ones in the DL channel, resulting in the coupling between the two channels. As a result we are concerned with the problem of joint transmit processing design to maximize the SE and EE subject to certain power constraints. Since the design problems are natually non-convex, it is difficult to find the globally optimal solutions or even when possible it is not practically appealing. Our contributions to solving these design problems are on the development of several iterative algorithms that can obtain locally optimal solutions. The proposed algorithms are built upon a framework of local optimization strategies such as the sequential parametric convex approximation and the Frank-Wolfe methods. In special cases closed-form designs are also presented. The reported results show that when the SI is sufficiently suppressed the considered FD MU-MIMO system with the proposed SE designs achieves a significantly better SE but consumes more energy, compared to the HD counterpart. In terms of EE the proposed EE scheme is superior to the proposed SE design. Moreover, in the low transmit power region, the EE design achieves a worse EE than the HD system but a better one in the high trasmit power regime when the SI power is low.

Tiivistelmä Tämä väitöskirja käsittelee datansiirtoa samanaikaisesti kaksisuuntaisessa (full-duplex, FD) usean käyttäjän moniantennijärjestelmässä (MU-MIMO), jossa FD-kykyinen tukiasema on yhtä aikaa yhteydessä vuorosuuntaisten (half-duplex, HD) käyttäjien kanssa laskevalla (DL) ja nousevalla (UL) siirtotiellä käyttäen samoja radioresursseja. FD-kommunikaation suurin haaste liittyy lähetys- ja vastaanottoantennien välisen omahäiriön (SI) hallintaan. Tässä työssä hyödynnetään tuoreita tutkimustuloksia, joissa edistyneillä häiriönvaimennustekniikoilla on kyetty vaimentamaan omahäiriö tasolle, jolla FD-lähetys solukkoverkoissa on toteutuskelpoista.…

Advisors/Committee Members: Latva-aho, M. (Matti).

Subjects/Keywords: D.C. program; energy efficiency; full-duplex; linear precoding; multiuser transmission; self-interference; semidefinite programming; spectral efficiency; transmit beamforming; D.C. ohjelma; energiatehokkuus; lineaarinen esikoodaus; lähetyskeilanmuotoilu; omahäiriö; semidefiniitti ohjelmointi; spektritehokkuus; täysdupleksi; usean käyttäjän lähetys; MIMO

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

APA (6^th Edition):

Nguyen, V. T. (. T. D. (2016). Transmission strategies for full-duplex multiuser MIMO communications systems. (Doctoral Dissertation). University of Oulu. Retrieved from http://urn.fi/urn:isbn:9789526211374

Chicago Manual of Style (16^th Edition):

Nguyen, V T (Vu Thuy Dan). “Transmission strategies for full-duplex multiuser MIMO communications systems.” 2016. Doctoral Dissertation, University of Oulu. Accessed February 28, 2021. http://urn.fi/urn:isbn:9789526211374.

MLA Handbook (7^th Edition):

Nguyen, V T (Vu Thuy Dan). “Transmission strategies for full-duplex multiuser MIMO communications systems.” 2016. Web. 28 Feb 2021.

Vancouver:

Nguyen VT(TD. Transmission strategies for full-duplex multiuser MIMO communications systems. [Internet] [Doctoral dissertation]. University of Oulu; 2016. [cited 2021 Feb 28]. Available from: http://urn.fi/urn:isbn:9789526211374.

Council of Science Editors:

Nguyen VT(TD. Transmission strategies for full-duplex multiuser MIMO communications systems. [Doctoral Dissertation]. University of Oulu; 2016. Available from: http://urn.fi/urn:isbn:9789526211374

Universitat Pompeu Fabra

11. George, Geordie. Device-to-device communication and wearable networks harnessing spatial proximity.

Degree: Departament de Tecnologies de la Informació i les Comunicacions, 2017, Universitat Pompeu Fabra

URL: http://hdl.handle.net/10803/404986

► Se espera que los dispositivos espacialmente proximales que desean intercambiar información se vuelvan más frecuentes en redes inalámbricas, lo que hace cada vez más importante… (more)

▼ Se espera que los dispositivos espacialmente proximales que desean intercambiar información se vuelvan más frecuentes en redes inalámbricas, lo que hace cada vez más importante la opción para la comunicación directa de dispositivo-a-dispositivo (D2D). Por un lado, dentro de las redes en las que la comunicación a través de la infraestructura ha sido la convención, permitir tal opción para la comunicación de corto alcance y single-hop entre dispositivos ubicados conjuntamente podría potencialmente generar beneficios de rendimiento en varios aspectos. Por otro lado, en el ámbito de las redes en las que la interacción directa entre dispositivos ha sido una opción obvia, existe una demanda creciente de soportar aplicaciones de velocidad extrema de datos e implementaciones mucho más densas de transmisiones simultáneas. Esta disertación explora dichos aspectos abordando dos problemas principales: (i) analizando los beneficios de rendimiento de la comunicación D2D integrada en las redes móviles celulares y (ii) investigando la viabilidad de las frecuencias mmWave (onda milimétrica) para redes personales de dispositivos wearables (usado en el cuerpo) en entornos cerrados. Bajo suficiente localidad espacial en el tráfico inalámbrico en redes celulares, el modo de comunicación D2D puede ser apalancado para emplear una reutilización espectral más densa, logrando así eficiencias espectrales de área muy alta (bits/s/Hz por unidad de área). La habilitación de D2D implica una remodelación de la topología de red que comprende las fuentes de señal útil e interferencia perjudicial desde la ventaja de cada receptor, lo cual es un factor que delimita el funcionamiento de la red de manera fundamental. Por tanto, para medir las ganancias de rendimiento de D2D y para identificar los retos de la misma, es esencial para modelar la comunicación D2D en un gran ajuste multicelular, sin faltar las características clave del entorno de interferencia resultante. En este sentido, se desarrolla un sólido marco analítico, utilizando herramientas de geometría estocástica. La disertación propone un nuevo enfoque para la aplicación de la geometría estocástica para mejorar la simplicidad, precisión y generalidad del análisis de redes inalámbricas. La evaluación realizada utilizando dicho enfoque, al mismo tiempo que demuestra el potencial de D2D, también indica la necesidad de manejar la oleada de interferencia. Impulsado por estos resultados, y para ilustrar la flexibilidad del marco, también se amplía para incorporar esquemas de protección contra interferencias basados en regiones de exclusión y se evalúan sus los beneficios. La presencia de redes wearables múltiples—cada una de las cuales comprende varios pares de dispositivos en el cuerpo desgastados por personas—en proximidad puede dar como resultado una densidad extrema de transmisiones inalámbricas simultáneas. Se espera que este escenario se convierta habitual en entornos cerrados, por ejemplo, trenes de cercanías, subterráneos, aviones, aeropuertos u oficinas, y será un reto adicional debido a… Advisors/Committee Members: [email protected] (authoremail), true (authoremailshow), Lozano Solsona, Angel (director), true (authorsendemail).

Subjects/Keywords: Wireless networks; D2D communication; Ergodic spectral efficiency; Overlay; Underlay; Stochastic geometry; Poisson point process; Cellular networks; MIMO; Shadowing; Interference; SINR; Wearable networks; Millimeter wave; Indoor mmWave communication; Random shape theory; Directional beamforming; 62

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

APA (6^th Edition):

George, G. (2017). Device-to-device communication and wearable networks harnessing spatial proximity. (Thesis). Universitat Pompeu Fabra. Retrieved from http://hdl.handle.net/10803/404986

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):

George, Geordie. “Device-to-device communication and wearable networks harnessing spatial proximity.” 2017. Thesis, Universitat Pompeu Fabra. Accessed February 28, 2021. http://hdl.handle.net/10803/404986.

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

MLA Handbook (7^th Edition):

George, Geordie. “Device-to-device communication and wearable networks harnessing spatial proximity.” 2017. Web. 28 Feb 2021.

Vancouver:

George G. Device-to-device communication and wearable networks harnessing spatial proximity. [Internet] [Thesis]. Universitat Pompeu Fabra; 2017. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/10803/404986.

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

Council of Science Editors:

George G. Device-to-device communication and wearable networks harnessing spatial proximity. [Thesis]. Universitat Pompeu Fabra; 2017. Available from: http://hdl.handle.net/10803/404986

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

University of Oxford

12. Mosley, Peter James. Generation of heralded single photons in pure quantum states.

Degree: PhD, 2007, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:44c36e1e-11ee-41e2-ba29-611c932ce4ff ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580837

► Single photons - discrete wavepackets of light - are one of the most fundamental entities in physics. In recent years, the ability to consistently create… (more)

Subjects/Keywords: 531.16; Atomic and laser physics; Quantum information processing; Quantum physics; photon; parametric downconversion; single photon source; pure state; interference; spectral engineering

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

APA (6^th Edition):

Mosley, P. J. (2007). Generation of heralded single photons in pure quantum states. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:44c36e1e-11ee-41e2-ba29-611c932ce4ff ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580837

Chicago Manual of Style (16^th Edition):

Mosley, Peter James. “Generation of heralded single photons in pure quantum states.” 2007. Doctoral Dissertation, University of Oxford. Accessed February 28, 2021. http://ora.ox.ac.uk/objects/uuid:44c36e1e-11ee-41e2-ba29-611c932ce4ff ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580837.

MLA Handbook (7^th Edition):

Mosley, Peter James. “Generation of heralded single photons in pure quantum states.” 2007. Web. 28 Feb 2021.

Vancouver:

Mosley PJ. Generation of heralded single photons in pure quantum states. [Internet] [Doctoral dissertation]. University of Oxford; 2007. [cited 2021 Feb 28]. Available from: http://ora.ox.ac.uk/objects/uuid:44c36e1e-11ee-41e2-ba29-611c932ce4ff ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580837.

Council of Science Editors:

Mosley PJ. Generation of heralded single photons in pure quantum states. [Doctoral Dissertation]. University of Oxford; 2007. Available from: http://ora.ox.ac.uk/objects/uuid:44c36e1e-11ee-41e2-ba29-611c932ce4ff ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580837

13. Nomikos, Nikolaos. Spectral efficient cooperative relaying with interference mitigation in heterogeneous wireless networks.

Degree: 2014, University of the Aegean; Πανεπιστήμιο Αιγαίου

URL: http://hdl.handle.net/10442/hedi/34944

► Σε αυτήν τη διατριβή εξετάζονται συνεργατικές τεχνικές οι οποίες βελτιώνουν τη φασματική αποδοτικότητα των ασύρματων δικτύων. Προς αυτήν την κατεύθυνση, θεωρούμε τη συνεργατική επανάληψη ως… (more)

▼ Σε αυτήν τη διατριβή εξετάζονται συνεργατικές τεχνικές οι οποίες βελτιώνουν τη φασματική αποδοτικότητα των ασύρματων δικτύων. Προς αυτήν την κατεύθυνση, θεωρούμε τη συνεργατική επανάληψη ως την τεχνική που οδηγεί στη φασματική αποδοτικότητα και προτείνουμε διάφορες στρατηγικές ανάλογα με την υπό εξέταση δικτυακή τοπολογία. Μία βασική πηγή ανησυχίας στα ασύρματα δίκτυα είναι η αποδοτική εξομάλυνση των παρεμβολών και έτσι, παρουσιάζουμε αρκετά σχήματα βασιζόμενοι στην επιλογή επαναλήπτη καθώς και στην ακύρωση των σημάτων παρεμβολής. Επιπρόσθετα, η ετερογένεια λαμβάνεται υπόψη εκμεταλλευόμενοι τις δυνατότητες των επαναληπτών και τα χαρακτηριστικά του δικτύου. Πιο συγκεκριμένα, στο πρώτο κεφάλαιο παρουσιάζουμε μία εισαγωγή των βασικών στοιχείων της διατριβής, όπως είναι η συνεργατική επανάληψη, η εξομάλυνση των παρεμβολών και τα ετερογενή δίκτυα. Επίσης, συμπεριλαμβάνονται τα κίνητρα πίσω από αυτήν τη διατριβή καθώς και η ερευνητική συνεισφορά μας. Έπειτα,στο δεύτερο κεφάλαιο παρουσιάζονται διάφοροι φασματικά αποδοτικοί αλγόριθμοι επανάληψης οι οποίοι συνδυάζουν την οπορτουνιστική επιλογή επαναλήπτη και τη διαδοχική επανάληψη, σχηματίζοντας έτσι, την Οπορτουνιστική Διαδοχική Επανάληψη (ΟΔΕ). Καθώς εφαρμόζονται μεταδόσεις με προσαρμογή της ισχύος εκπομπής, η επιλογή του βέλτιστου ζεύγους επαναληπτών βασίζεται στην ελάχιστη απαιτούμενη ισχύ εκπομπής η οποία αρκεί για να επιτευχθεί ένα προκαθορισμένο κατώφλι φασματικής απόδοσης. Επιπρόσθετα, προτείνονται δύο εκδοχές της ΟΔΕ, η ΟΔΕ με χρήση της ίδιας συχνότητας και στις δύο ζεύξεις μεταξύ πηγής-επαναλήπτη και επαναλήπτη-προορισμού, η οποία εισάγει παρεμβολές μεταξύ των επαναληπτών και η ΟΔΕ με χρήση διαφορετικής συχνότητας στις δύο ζεύξεις, η οποία μηδενίζει τις παρεμβολές.Ταυτόχρονα, πραγματοποιούμε μία αξιολόγηση της απόδοσης αυτών των αλγορίθμων αναφορικά με την πιθανότητα διακοπής, το μέσο ρυθμό μετάδοσης δεδομένων και τη μείωση στην ισχύ εκπομπής συγκριτικά με σχήματα που δε χρησιμοποιούν προσαρμοζόμενα επίπεδα ισχύος εκπομπής. Μετά, στο τρίτο κεφάλαιο χρησιμοποιούνται επαναλήπτες με δυνατότητα αποθήκευσης δεδομένων. Παρουσιάζεται μία τροποποιημένη εκδοχή του max − link, ενός δημοφιλούς αλγορίθμου ημί-διπλεξίας, η οποία συμπεριλαμβάνει την περίπτωση της απευθείας συνδεσιμότητας πηγής-προορισμού και έπειτα, ο συνδυασμός max − link, ΟΔΕ και επαναληπτών πλήρους διπλεξίας οδηγεί στην ανάπτυξη δύο υβριδικών σχημάτων. Πρώτα παρουσιάζεται ο αλγόριθμος ελάχιστης ισχύος (min − power) βασιζόμενος στο συνδυασμό max − link και ΟΔΕ και στη συνέχεια, οι αλγόριθμοι BAFDA βασιζόμενοι στο συνδυασμό max − link, ΟΔΕ και επαναληπτών πλήρους διπλεξίας. Και τα δύο υβριδικά σχήματα αξιολογούνται αναφορικά με την πιθανότητα διακοπής, το μέσο ρυθμό μετάδοσης, τη μείωση της ισχύος εκπομπής και τη μέση καθυστέρηση. Επιπλέον, προτείνεται ένα μη-βέλτιστο σχήμα BAFDA με στόχο τη μείωση των επίβαρων που απορρέουν από τη συνεχή εκτίμηση της κατάστασης του ασύρματου καναλιού. Στο τέταρτο κεφάλαιο συμπεριλαμβάνονται ενδεικτικές εφαρμογές των προτεινόμενων αλγορίθμων. Πιο συγκεκριμένα, παρουσιάζεται μία…

Subjects/Keywords: Συνεργατικοί αναμεταδότες-επαναλήπτες; Εξομάλυνση παρεμβολών; Αλγόριθμοι επιλογής αναμεταδότη-επαναλήπτη; Ενεργειακά αποδοτικές επικοινωνίες; Φασματικά αποδοτικές επικοινωνίες; Ασφάλεια στο φυσικό επίπεδο; Cooperative relays; Interference mitigation; Relay selection algorithms; Energy - efficient communications; spectral-efficient communications; physical-layer security

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

APA (6^th Edition):

Nomikos, N. (2014). Spectral efficient cooperative relaying with interference mitigation in heterogeneous wireless networks. (Thesis). University of the Aegean; Πανεπιστήμιο Αιγαίου. Retrieved from http://hdl.handle.net/10442/hedi/34944

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):

Nomikos, Nikolaos. “Spectral efficient cooperative relaying with interference mitigation in heterogeneous wireless networks.” 2014. Thesis, University of the Aegean; Πανεπιστήμιο Αιγαίου. Accessed February 28, 2021. http://hdl.handle.net/10442/hedi/34944.

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

MLA Handbook (7^th Edition):

Nomikos, Nikolaos. “Spectral efficient cooperative relaying with interference mitigation in heterogeneous wireless networks.” 2014. Web. 28 Feb 2021.

Vancouver:

Nomikos N. Spectral efficient cooperative relaying with interference mitigation in heterogeneous wireless networks. [Internet] [Thesis]. University of the Aegean; Πανεπιστήμιο Αιγαίου; 2014. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/10442/hedi/34944.

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

Council of Science Editors:

Nomikos N. Spectral efficient cooperative relaying with interference mitigation in heterogeneous wireless networks. [Thesis]. University of the Aegean; Πανεπιστήμιο Αιγαίου; 2014. Available from: http://hdl.handle.net/10442/hedi/34944

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

14. Jha, Vandana. Spectral Null Generation using Pulse Width Modulation in DC-DC converters.

Degree: 2010, University of Nevada – Reno

URL: http://hdl.handle.net/11714/4445

► Electrical infrastructure of modern society is highly dependent on the power electronic systems for conditioning of electrical power from the raw power of the national… (more)

Subjects/Keywords: Dc-Dc converter; electromagnetic interference; Noise mitigation; power line communication; Pulse width modulation; Spectral null

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

APA (6^th Edition):

Jha, V. (2010). Spectral Null Generation using Pulse Width Modulation in DC-DC converters. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/4445

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):

Jha, Vandana. “Spectral Null Generation using Pulse Width Modulation in DC-DC converters.” 2010. Thesis, University of Nevada – Reno. Accessed February 28, 2021. http://hdl.handle.net/11714/4445.

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

MLA Handbook (7^th Edition):

Jha, Vandana. “Spectral Null Generation using Pulse Width Modulation in DC-DC converters.” 2010. Web. 28 Feb 2021.

Vancouver:

Jha V. Spectral Null Generation using Pulse Width Modulation in DC-DC converters. [Internet] [Thesis]. University of Nevada – Reno; 2010. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/11714/4445.

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

Council of Science Editors:

Jha V. Spectral Null Generation using Pulse Width Modulation in DC-DC converters. [Thesis]. University of Nevada – Reno; 2010. Available from: http://hdl.handle.net/11714/4445

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

15. Nasser, Abbass. Spectrum sensing for half and full-duplex interweave cognitive radio systems : Détection de spectre pour les systèmes half et full-duplex radio intelligente entrelacée.

Degree: Docteur es, Sciences et technologies de l'information et de la communication, 2017, Brest

URL: http://www.theses.fr/2017BRES0006

► En raison de la demande croissante de services de communication sans fil et de la limitation des ressources de spectre, la radio cognitive (CR) a… (more)

▼ En raison de la demande croissante de services de communication sans fil et de la limitation des ressources de spectre, la radio cognitive (CR) a été initialement proposée pour résoudre la pénurie de spectre. CR divise les systèmes transmetteurs-récepteurs de communication en deux catégories : les Utilisateurs Principaux (PU) et les Utilisateurs Secondaires (SU). PU a le droit légal d'utiliser la bande spectrale, tandis que SU est un utilisateur opportuniste qui peut transmettre sur cette bande chaque fois qu'elle est vacante afin d'éviter toute interférence avec le signal de PU. De ce fait, la détection des activités de PU devient une priorité principale pour toute CR.Le Spectrum Sensing devient ainsi une partie importante d’un système CR, qui surveille les transmissions de PU. En effet, le Spectrum Sensing joue un rôle essentiel dans le mécanisme du fonctionnement du CR en localisant les canaux disponibles et, d'autre part, en protégeant les canaux occupés des interférences de la transmission SU. En fait, Spectrum Sensing a gagné beaucoup d'attention au cours de la dernière décennie, et de nombreux algorithmes sont proposés. Concernant la fiabilité de la performance, plusieurs défis comme le faible rapport signal sur bruit, l'incertitude de bruit (NU), la durée de détection du spectre, etc. Cette thèse aborde les défis de la détection du spectre et apporte quelques solutions. De nouveaux détecteurs basés sur la détection des caractéristiques cyclo-stationnaires et la densité spectrale de puissance (PSD) du signal de PU sont présentés. Un algorithme de test de signification de corrélation canonique (CCST) est proposé pour effectuer une détection cyclo-stationnaire. CCST peut détecter la présence des caractéristiques cycliques communes parmi les versions retardées du signal reçu. Ce test peut révéler la présence d'un signal cyclo-stationnaire dans le signal de mélange reçu. Une autre méthode de détection basée sur la PSD cumulative est proposée. En supposant que le bruit est blanc (sa PSD est plate), la PSD cumulative s'approche d'une droite. Cette forme devient non linéaire pour les signaux de télécommunication. Distinguer la forme cumulative PSD peut donc conduire à diagnostiquer l'état du canal.La radio cognitive Full-Duplex (FD-CR) a également été étudiée dans ce manuscrit, où plusieurs défis sont analysés en proposant de nouvelles contributions. Le fonctionnement FD permet au CR d'éviter la période de silence pendant la détection du spectre. Dans le système CR classique, le SU cesse de transmettre pendant la détection du spectre afin de ne pas affecter la fiabilité de détection. Dans FD-CR, SU peut éliminer la réflexion de son signal transmis et en même temps réaliser le Spectrum Sensing. En raison de certaines limitations, le résidu de l'auto-interférence ne peut pas être complètement annulé, alors la crédibilité de la détection du spectre est fortement affectée. Afin de réduire la puissance résiduelle, une nouvelle architecture de récepteur SU est élaborée pour atténuer les imperfections du circuit (comme le… Advisors/Committee Members: Mansour, Ali (thesis director).

Subjects/Keywords: Radio intelligente entrelacée; Détection de spectre; Half-duplex; Full-duplex; Corrélation cyclique; Densité spectrale de puissance cumulée; Annulation de l’auto-interférence; Atténuation des imperfection de hardware; Interweave cognitive radio; Spectrum sensing; Half-duplex; Full-duplex; Canonical correlation significance test; Cumulative power spectral density; Self-Interference cancellation; Hardware imperfection mitigation; 537.534

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

APA (6^th Edition):

Nasser, A. (2017). Spectrum sensing for half and full-duplex interweave cognitive radio systems : Détection de spectre pour les systèmes half et full-duplex radio intelligente entrelacée. (Doctoral Dissertation). Brest. Retrieved from http://www.theses.fr/2017BRES0006

Chicago Manual of Style (16^th Edition):

Nasser, Abbass. “Spectrum sensing for half and full-duplex interweave cognitive radio systems : Détection de spectre pour les systèmes half et full-duplex radio intelligente entrelacée.” 2017. Doctoral Dissertation, Brest. Accessed February 28, 2021. http://www.theses.fr/2017BRES0006.

MLA Handbook (7^th Edition):

Nasser, Abbass. “Spectrum sensing for half and full-duplex interweave cognitive radio systems : Détection de spectre pour les systèmes half et full-duplex radio intelligente entrelacée.” 2017. Web. 28 Feb 2021.

Vancouver:

Nasser A. Spectrum sensing for half and full-duplex interweave cognitive radio systems : Détection de spectre pour les systèmes half et full-duplex radio intelligente entrelacée. [Internet] [Doctoral dissertation]. Brest; 2017. [cited 2021 Feb 28]. Available from: http://www.theses.fr/2017BRES0006.

Council of Science Editors:

Nasser A. Spectrum sensing for half and full-duplex interweave cognitive radio systems : Détection de spectre pour les systèmes half et full-duplex radio intelligente entrelacée. [Doctoral Dissertation]. Brest; 2017. Available from: http://www.theses.fr/2017BRES0006

16. Mo, Yuqi. Ultra narrow band based IoT networks : Réseaux IoT à bande ultra étroite.

Degree: Docteur es, Sciences et technologies de l'information et de la communication, 2018, Lyon

URL: http://www.theses.fr/2018LYSEI069

►

La compagnie Sigfox est reconnue comme un acteur prometteur pour des transmissions de longue-distance et faible consommation, dans le contexte de l'IoT. La modulation à… (more)

▼

La compagnie Sigfox est reconnue comme un acteur prometteur pour des transmissions de longue-distance et faible consommation, dans le contexte de l'IoT. La modulation à bande ultra étroite (Ultra Narrow Band (UNB)), la technologie de communication choisie par Sigfox, permet de transmettre des informations dans des bandes de signal très étroites (typiquement 100 Hz). A cause de l'imprécision fréquentielle causée par les oscillateurs générateurs de fréquence, il n'est pas réaliste de transmettre des signaux UNB dans des canaux parfaitement orthogonaux. L'accès naturel au canal radio pour le système de UNB est de type ALOHA, avec un aspect aléatoire à la fois en en temps et en fréquence. Cet accès aléatoire peut introduire des collisions qui dégradent la performance du réseau. Le but de cette thèse est de caractériser la capacité des réseaux basés sur UNB, ainsi que d’améliorer la performance en considérant l'aspect aléatoire en temps et en fréquence. La première contribution de cette thèse, est une évaluation de la capacité en théorie et en simulation pour une seule station de base (BS), sous des conditions de canal idéaliste ou réaliste. En conditions idéalistes, nous avons exprimé la capacité pour le cas de l'ALOHA généralisé, et l'avons étendu aux cas de réplications. Pour les conditions réalistes, nous avons pris en compte l'interférence spectrale d'UNB et le path loss (sans et avec Rayleigh fading) afin de caractériser la performance des réseaux UNB, avec l'outil géométrie stochastique. La deuxième contribution est d'appliquer l’annulation successive d'interférence (SIC), qui nous permet d'atténuer les interférences, dans des réseaux de UNB. Nous avons fourni une analyse théorique de la performance des réseaux en considérant le SIC et l'interférence spectrale de UNB, pour le cas de mono-BS. La troisième contribution est l'amélioration de la performance des réseaux UNB, en exploitant la diversité de multi-BS. Nous avons fait une analyse théorique de performance en considérant multi-BS et selection combining (SC). En particulier, nous avons considéré que l’interférence vue par chaque BS est corrélée. Nous avons ainsi démontré mathématiquement que cette corrélation ne peut pas être supprimée dans des systèmes UNB. Ensuite, nous avons appliqué les technologies de la combinaison des signaux plus complexes comme MRC (max ratio combining) et EGC (equal gain combining), ainsi que le SIC à travers multi-BS. Nous avons évalué l'amélioration de performance que chaque technologie apporte, et les avons comparées. Nous avons souligné l'efficacité de ces technologies qui nous permettent d’obtenir des gains importants comparés au cas mono-BS (e.x. 125 fois plus de réduction d'erreur avec SIC globale). La dernière contribution est une validation expérimentale du modèle d'interférence spectrale de UNB, ainsi que la capacité des réseaux UNB, sur un testbed de radio FIT/Cortexlab.

Sigfox rises as a promising candidate dedicated for long-distance and low-power transmissions in the IoT backgrounds. Ultra Narrow Band (UNB), being the…

Advisors/Committee Members: Gorce, Jean-Marie (thesis director).

Subjects/Keywords: Télécommunications; Radiocommunications; IoT - Internet of Things; Modulation à bande ultra étroite - UNB; RFTMA (Random Frequency and Time Multiple Access); Protocole ALOHA; Interférence spectrale; Capacity; Performance improvement; Annulation successive d'interférence - SIC; Telecommunications; Radiocommunication Network; IoT - Internet of Things; Ultra Narrow Band - UNB; RFTMA (Random Frequency and Time Multiple Access); ALOHA Protocol; Spectral interference; Capacit; Performance improvement; 621.384 107 2

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

APA (6^th Edition):

Mo, Y. (2018). Ultra narrow band based IoT networks : Réseaux IoT à bande ultra étroite. (Doctoral Dissertation). Lyon. Retrieved from http://www.theses.fr/2018LYSEI069

Chicago Manual of Style (16^th Edition):

Mo, Yuqi. “Ultra narrow band based IoT networks : Réseaux IoT à bande ultra étroite.” 2018. Doctoral Dissertation, Lyon. Accessed February 28, 2021. http://www.theses.fr/2018LYSEI069.

MLA Handbook (7^th Edition):

Mo, Yuqi. “Ultra narrow band based IoT networks : Réseaux IoT à bande ultra étroite.” 2018. Web. 28 Feb 2021.

Vancouver:

Mo Y. Ultra narrow band based IoT networks : Réseaux IoT à bande ultra étroite. [Internet] [Doctoral dissertation]. Lyon; 2018. [cited 2021 Feb 28]. Available from: http://www.theses.fr/2018LYSEI069.

Council of Science Editors:

Mo Y. Ultra narrow band based IoT networks : Réseaux IoT à bande ultra étroite. [Doctoral Dissertation]. Lyon; 2018. Available from: http://www.theses.fr/2018LYSEI069

University of Houston

17. Lau, Anthony Y.B. INVESTIGATION OF FEED LINE EFFECTS ON FIELDS FROM BROADBAND OVER POWER LINE COMMUNICATIONS.

Degree: PhD, Electrical Engineering, 2013, University of Houston

URL: http://hdl.handle.net/10657/1223

► With the advent of broadband over power line (BPL) for high-speed data transmission and the emerging interest in grid modernization, the appeal of signal transmission… (more)

Subjects/Keywords: Broadband over power line; BPL; Power line communications; PLC; Federal Communications Commission; FCC; Smart grids; Grid modernization; Spectral domain immittance (SDI); Electromagnetic interference; EMI; Unintentional radiation; Guided waves; Space waves; Traveling waves; Slow converging Sommerfeld integral; Transverse equivalent network; Feed; Line truncation; Current control technique; Numerical Electromagnetics Code; NEC; EMPACK 2000; Multilayer media modeling; Electrically large structure

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

APA (6^th Edition):

Lau, A. Y. B. (2013). INVESTIGATION OF FEED LINE EFFECTS ON FIELDS FROM BROADBAND OVER POWER LINE COMMUNICATIONS. (Doctoral Dissertation). University of Houston. Retrieved from http://hdl.handle.net/10657/1223

Chicago Manual of Style (16^th Edition):

Lau, Anthony Y B. “INVESTIGATION OF FEED LINE EFFECTS ON FIELDS FROM BROADBAND OVER POWER LINE COMMUNICATIONS.” 2013. Doctoral Dissertation, University of Houston. Accessed February 28, 2021. http://hdl.handle.net/10657/1223.

MLA Handbook (7^th Edition):

Lau, Anthony Y B. “INVESTIGATION OF FEED LINE EFFECTS ON FIELDS FROM BROADBAND OVER POWER LINE COMMUNICATIONS.” 2013. Web. 28 Feb 2021.

Vancouver:

Lau AYB. INVESTIGATION OF FEED LINE EFFECTS ON FIELDS FROM BROADBAND OVER POWER LINE COMMUNICATIONS. [Internet] [Doctoral dissertation]. University of Houston; 2013. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/10657/1223.

Council of Science Editors:

Lau AYB. INVESTIGATION OF FEED LINE EFFECTS ON FIELDS FROM BROADBAND OVER POWER LINE COMMUNICATIONS. [Doctoral Dissertation]. University of Houston; 2013. Available from: http://hdl.handle.net/10657/1223

University of Tennessee – Knoxville

18. Crawford, Justin Lee. High-sensitivity spectral fluorescence lifetime imaging for resolving spectroscopically overlapping species.

Degree: MS, Physics and Astronomy, 2009, University of Tennessee – Knoxville

URL: https://trace.tennessee.edu/utk_gradthes/3

► The capability to resolve the contributions from spectroscopically overlapping fluorophores has enabled significant breakthroughs in cellular imaging. However, commercial microscopes for this purpose use analog… (more)

Subjects/Keywords: spectral fluorescence lifetime imaging; maximum likelihood; confocal microscopy; interference filters; spectroscopically overlapping fluorophores; single-photon avalanche detector; Biological and Chemical Physics; Optics

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

APA (6^th Edition):

Crawford, J. L. (2009). High-sensitivity spectral fluorescence lifetime imaging for resolving spectroscopically overlapping species. (Thesis). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_gradthes/3

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):

Crawford, Justin Lee. “High-sensitivity spectral fluorescence lifetime imaging for resolving spectroscopically overlapping species.” 2009. Thesis, University of Tennessee – Knoxville. Accessed February 28, 2021. https://trace.tennessee.edu/utk_gradthes/3.

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

MLA Handbook (7^th Edition):

Crawford, Justin Lee. “High-sensitivity spectral fluorescence lifetime imaging for resolving spectroscopically overlapping species.” 2009. Web. 28 Feb 2021.

Vancouver:

Crawford JL. High-sensitivity spectral fluorescence lifetime imaging for resolving spectroscopically overlapping species. [Internet] [Thesis]. University of Tennessee – Knoxville; 2009. [cited 2021 Feb 28]. Available from: https://trace.tennessee.edu/utk_gradthes/3.

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

Council of Science Editors:

Crawford JL. High-sensitivity spectral fluorescence lifetime imaging for resolving spectroscopically overlapping species. [Thesis]. University of Tennessee – Knoxville; 2009. Available from: https://trace.tennessee.edu/utk_gradthes/3

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

York University

19. Voutsogiannakis, Michael. Calibration and Flight of a Balloon-Borne O2 Atmospheric Band Fabry-Perot Spectrometer.

Degree: MSc -MS, Physics And Astronomy, 2018, York University

URL: http://hdl.handle.net/10315/34399

► The Fabry-Perot spectrometer is an extremely useful tool for retrieving spectral information of the Oxygen A-band at nadir viewing angles, as well as for remote… (more)

Subjects/Keywords: Physics; Fabry-Perot; Spectrometer; Calibration; Optics; Filters; Finesse; Etalon; A-band; Diffraction grating; Bandwidth; Lens; Interference; Free spectral range; FWHM; FSR; Stratospheric balloon; Lissberger; Wavelength shift; Temperature change; Etendue; F-number; Focal length; Spectrum; Albedo; Radiance; Slit; CCD; Telephoto; Source; Argon; Tungsten; Thermocouple; RTD sensor; Temperature controller; Plates; Piezos; Gap spacing; Step scan

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

APA (6^th Edition):

Voutsogiannakis, M. (2018). Calibration and Flight of a Balloon-Borne O2 Atmospheric Band Fabry-Perot Spectrometer. (Masters Thesis). York University. Retrieved from http://hdl.handle.net/10315/34399

Chicago Manual of Style (16^th Edition):

Voutsogiannakis, Michael. “Calibration and Flight of a Balloon-Borne O2 Atmospheric Band Fabry-Perot Spectrometer.” 2018. Masters Thesis, York University. Accessed February 28, 2021. http://hdl.handle.net/10315/34399.

MLA Handbook (7^th Edition):

Voutsogiannakis, Michael. “Calibration and Flight of a Balloon-Borne O2 Atmospheric Band Fabry-Perot Spectrometer.” 2018. Web. 28 Feb 2021.

Vancouver:

Voutsogiannakis M. Calibration and Flight of a Balloon-Borne O2 Atmospheric Band Fabry-Perot Spectrometer. [Internet] [Masters thesis]. York University; 2018. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/10315/34399.

Council of Science Editors:

Voutsogiannakis M. Calibration and Flight of a Balloon-Borne O2 Atmospheric Band Fabry-Perot Spectrometer. [Masters Thesis]. York University; 2018. Available from: http://hdl.handle.net/10315/34399

Universitat Pompeu Fabra

20. Mungara, Ratheesh Kumar. System-level performance of interference-aware spatial frequency reuse.

Degree: Departament de Tecnologies de la Informació i les Comunicacions, 2016, Universitat Pompeu Fabra

URL: http://hdl.handle.net/10803/400869

► La reutilització de la freqüència espacial és l’aproximació més acceptada per tal de millorar la capacitat dels sistemes wireless mitjançant l'increment de l'eficiència espectral (bits… (more)

▼ La reutilització de la freqüència espacial és l’aproximació més acceptada per tal de millorar la capacitat dels sistemes wireless mitjançant l'increment de l'eficiència espectral (bits per segon per unitat d'ample de banda). S'espera que la futura cinquena generació de sistemes wireless incorpori diverses formes de reutilització de freqüència. Això inclou la comunicació multi-input multi-output (MIMO) que permet la reutilització a través d'antenes, densificació dispositiu-a-dispositiu (D2D) que permet reutilitzar l'espectre a través d’enllaços de comunicació directa, així com un full-dúplex emprant el mateix espectre per a la comunicació en la transmissió i recepció de direccions. Aquest treball pretén determinar els límits de rendiment dels sistemes wireless emergents, basats en una densa reutilització de la freqüència espacial i en la supressió d'interferències, així com espigolar coneixement clau per al disseny de sistemes d'aquest tipus. La geometria estocàstica és l'eina que s'aplicarà a l'anàlisi que es durà a terme, modelitzant les localitzacions dins la xarxa com a punts d'un procés de Poisson. La introducció d'un ajust Gaussià a la interferència, conjuntament amb la consideració de nivells variables d'expectació espacial, han permès definir un nou marc matemàtic que fa possible unes expressions més compactes i uns resultats més significatius en comparació amb els anàlisis existents. Dins d'aquest marc, en primer lloc es prenen en consideració la multiplexació MIMO i l'aliniament d'interferència (IA, en les seves sigles en anglès). El primer esquema empra totes les dimensions espacials disponibles per a la senyalització i el segon minimitza la interferència a costa de conèixer els estats de esvaïment instantani dels transmissors i receptors, i d'una reducció en les dimensions de senyalització espacial. Malgrat l'intens treball en l'IA i la multiplexació espacial, s'ha prestat escassa atenció a tractar de comprendre el seu balanç d’enginyeria en el context d'xarxes cel.lulars de rellevància pràctica, com els de propagació de pèrdues, o les dinàmiques de esvaïment degudes a la mobilitat de l'usuari i al coneixement imperfecte dels estats de esvaïment. En aquest treball s'ha estudiat en profunditat aquest problema a través d'anàlisis tant a nivell dels enllaços com del sistema. Fins i tot en condicions de coneixement perfecte del esvaïment, l'IA resulta beneficiós sobre la multiplexació només en situacions de xarxa molt específiques i relativament infreqüents, mentre que perd tots els seus avantatges a velocitats vehiculars quan el coneixement del esvaïment és imperfecte. En segon lloc, el treball es centra en el ITLinQ i el FlashLinQ, els dos principals esquemes de canalització proposats fins al moment per controlar la interferència en xarxes D2D. S'ofereix una caracterització analítica de l'esquema ITLinQ, obrint així la porta a l'optimització dels seus paràmetres controlables. Es mostra que tots dos esquemes de canalització aconsegueixen millors resultats que l'esquema no canalitzat, amb un… Advisors/Committee Members: [email protected] (authoremail), true (authoremailshow), Lozano Solsona, Angel, (director), true (authorsendemail).

Subjects/Keywords: Wireless; Cellular network; Multiple-input multiple-output (MIMO); Interference; Spatial frequency reuse; Interference alignment (IA); Stochastic geometry; Capacity; Spectral efficiency; Fading; Pilot-assisted transmission; Poisson point process; Spatial multiplexing; Distributed cooperation; ITLinQ; FlashLinQ; Channel allocation; Full-duplex; Half-duplex; Link-level analysis; System-level analysis; Long-term evolution (LTE); Xarxa cel·lular; Multi-input multi-output (MIMO); Interferència; La reutilització de la freqüència espacial; Aliniament d'interferència (IA); Geometria estocàstica; Capacitat; Eficiència espectral; Esvaïment; Transmissió de pilots assistida; Procés de punt de Poisson; Multiplexació MIMO; Canalització; Assignació de canals; 62

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

APA (6^th Edition):

Mungara, R. K. (2016). System-level performance of interference-aware spatial frequency reuse. (Thesis). Universitat Pompeu Fabra. Retrieved from http://hdl.handle.net/10803/400869

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):

Mungara, Ratheesh Kumar. “System-level performance of interference-aware spatial frequency reuse.” 2016. Thesis, Universitat Pompeu Fabra. Accessed February 28, 2021. http://hdl.handle.net/10803/400869.

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

MLA Handbook (7^th Edition):

Mungara, Ratheesh Kumar. “System-level performance of interference-aware spatial frequency reuse.” 2016. Web. 28 Feb 2021.

Vancouver:

Mungara RK. System-level performance of interference-aware spatial frequency reuse. [Internet] [Thesis]. Universitat Pompeu Fabra; 2016. [cited 2021 Feb 28]. Available from: http://hdl.handle.net/10803/400869.

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

Council of Science Editors:

Mungara RK. System-level performance of interference-aware spatial frequency reuse. [Thesis]. Universitat Pompeu Fabra; 2016. Available from: http://hdl.handle.net/10803/400869

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

Brigham Young University

21. Poulsen, Andrew Joseph. Real-time Adaptive Cancellation of Satellite Interference in Radio Astronomy.

Degree: MS, 2003, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1091&context=etd

► Radio astronomy is the science of observing the heavens at radio frequencies, from a few kHz to approximately 300 GHz. In recent years, radio astronomy… (more)

Subjects/Keywords: real-time; radio astronomy; interference; DSP; least-mean-square; LMS; satellite; Green Bank Telescope; GBT; NRAO; National Radio Astronomy Observatory; RFI; radio frequency interference; telescope; RF; radio frequency; mitigation; power spectral density; PSD; beamformer; correlator; Very Small Array; VSA; antenna; software; OH sources; hydroxyl; algorithm; spectral analysis; GLONASS; red-shifted; Green Bank; Electrical and Computer Engineering

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

APA (6^th Edition):

Poulsen, A. J. (2003). Real-time Adaptive Cancellation of Satellite Interference in Radio Astronomy. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1091&context=etd

Chicago Manual of Style (16^th Edition):

Poulsen, Andrew Joseph. “Real-time Adaptive Cancellation of Satellite Interference in Radio Astronomy.” 2003. Masters Thesis, Brigham Young University. Accessed February 28, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1091&context=etd.

MLA Handbook (7^th Edition):

Poulsen, Andrew Joseph. “Real-time Adaptive Cancellation of Satellite Interference in Radio Astronomy.” 2003. Web. 28 Feb 2021.

Vancouver:

Poulsen AJ. Real-time Adaptive Cancellation of Satellite Interference in Radio Astronomy. [Internet] [Masters thesis]. Brigham Young University; 2003. [cited 2021 Feb 28]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1091&context=etd.

Council of Science Editors:

Poulsen AJ. Real-time Adaptive Cancellation of Satellite Interference in Radio Astronomy. [Masters Thesis]. Brigham Young University; 2003. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1091&context=etd

Queensland University of Technology

22. Singh, Latchman. Speech enhancement for forensic applications.

Degree: 1998, Queensland University of Technology

URL: https://eprints.qut.edu.au/36080/

Subjects/Keywords: Speech processing systems; Electronic surveillance; adaptive filtering; auditory masking; broadband noise; convultional noise; covert recordings; co-talker interference; critical bands; dynamic time warping; equalisation; frequency shift keying; impulsive noise; median filtering; mean opinion score; musical noise; narrow band noise; post-processing; pre-processing; residual noise; reverbration; segmental signal-to-noise ratio; spectral subtraction; speech enhancement; speech intelligibility; wavelets; thesis; masters

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APA (6^th Edition):

Singh, L. (1998). Speech enhancement for forensic applications. (Thesis). Queensland University of Technology. Retrieved from https://eprints.qut.edu.au/36080/

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):

Singh, Latchman. “Speech enhancement for forensic applications.” 1998. Thesis, Queensland University of Technology. Accessed February 28, 2021. https://eprints.qut.edu.au/36080/.

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

MLA Handbook (7^th Edition):

Singh, Latchman. “Speech enhancement for forensic applications.” 1998. Web. 28 Feb 2021.

Vancouver:

Singh L. Speech enhancement for forensic applications. [Internet] [Thesis]. Queensland University of Technology; 1998. [cited 2021 Feb 28]. Available from: https://eprints.qut.edu.au/36080/.

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

Council of Science Editors:

Singh L. Speech enhancement for forensic applications. [Thesis]. Queensland University of Technology; 1998. Available from: https://eprints.qut.edu.au/36080/

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

Open Access Theses and Dissertations