Non-Gaussian CDMA for multi-access channels: capacity analysis and code design
Code Division Multiplexing Access (CDMA) transmission technology is used III differentcommercial and military communication systems and, due to the widespread popularity of the 3Gwireless cellphones, CDMA is projected to be used by over 720 million people by 2013 [24], [99].This dissertation work ha...
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ndltd-LACETR-oai-collectionscanada.gc.ca-QMM.956192014-02-13T03:55:57ZNon-Gaussian CDMA for multi-access channels: capacity analysis and code designAmadou Garba, AminataEngineeringCode Division Multiplexing Access (CDMA) transmission technology is used III differentcommercial and military communication systems and, due to the widespread popularity of the 3Gwireless cellphones, CDMA is projected to be used by over 720 million people by 2013 [24], [99].This dissertation work has been motivated by a widely accepted conjecture [27], [92], [135], thatthe (sum) capacity of CDMA transmission with single-user demodulation and single-user decodingat the receiver is limited to about 0.72 bits per channel use (or CDMA chip). This thesis presents aconstructive counter-example to this conjecture and provides design of coding schemes withpractical implementation complexity that can exceed this conjectured capacity limit by more than 5times. The data rate increases, resulting from the capacity analysis and code design in this thesis,can potentially benefit CDMA-based high-speed data communication services in wireless andoptical CDMA networks, e.g., video on demand, high-speed Internet access, security surveillance.Le multiplexage par division de codes (CD MA) est utilisé dans différents systèmes decommunications commerciaux et militaires, et grâce à la popularité des téléphones cellulaires 3G,il est prévu que CDMA sera utilisé par plus de 720 millions de personnes d'ici 2013 [24], [99].Cette thèse est motivée par une conjecture largement acceptée [27], [92], [135], stipulant que lacapacité théorique des réseaux CD MA utilisant la démodulation et le décodage uni-usager aurécepteur, est limitée à 0.72 bits par accès de réseau (ou chip CDMA). Cette thèse fournie uncontre-exemple constructif à cette conjecture et présente le design de codes concaténés àcomplexité pratique permettant d'excéder plus de 5 fois la capacité supposée. Ces gains encapacité peuvent être bénéfiques aux services à haute vitesse des réseaux optiques et sans filsCDMA, tels que la vidéo sur demande, l'Internet haute vitesse sans fil, les vidéos de surveillance.McGill UniversityBajcsy, Jan (Supervisor)2009Electronic Thesis or Dissertationapplication/pdfenTheses scanned by McGill Library.All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated.Doctor of Philosophy (Department of Electrical and Computer Engineering) http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95619 |
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Code Division Multiplexing Access (CDMA) transmission technology is used III differentcommercial and military communication systems and, due to the widespread popularity of the 3Gwireless cellphones, CDMA is projected to be used by over 720 million people by 2013 [24], [99].This dissertation work has been motivated by a widely accepted conjecture [27], [92], [135], thatthe (sum) capacity of CDMA transmission with single-user demodulation and single-user decodingat the receiver is limited to about 0.72 bits per channel use (or CDMA chip). This thesis presents aconstructive counter-example to this conjecture and provides design of coding schemes withpractical implementation complexity that can exceed this conjectured capacity limit by more than 5times. The data rate increases, resulting from the capacity analysis and code design in this thesis,can potentially benefit CDMA-based high-speed data communication services in wireless andoptical CDMA networks, e.g., video on demand, high-speed Internet access, security surveillance. === Le multiplexage par division de codes (CD MA) est utilisé dans différents systèmes decommunications commerciaux et militaires, et grâce à la popularité des téléphones cellulaires 3G,il est prévu que CDMA sera utilisé par plus de 720 millions de personnes d'ici 2013 [24], [99].Cette thèse est motivée par une conjecture largement acceptée [27], [92], [135], stipulant que lacapacité théorique des réseaux CD MA utilisant la démodulation et le décodage uni-usager aurécepteur, est limitée à 0.72 bits par accès de réseau (ou chip CDMA). Cette thèse fournie uncontre-exemple constructif à cette conjecture et présente le design de codes concaténés àcomplexité pratique permettant d'excéder plus de 5 fois la capacité supposée. Ces gains encapacité peuvent être bénéfiques aux services à haute vitesse des réseaux optiques et sans filsCDMA, tels que la vidéo sur demande, l'Internet haute vitesse sans fil, les vidéos de surveillance. |
author2 |
Bajcsy, Jan (Supervisor) |
author_facet |
Bajcsy, Jan (Supervisor) Amadou Garba, Aminata |
author |
Amadou Garba, Aminata |
author_sort |
Amadou Garba, Aminata |
title |
Non-Gaussian CDMA for multi-access channels: capacity analysis and code design |
title_short |
Non-Gaussian CDMA for multi-access channels: capacity analysis and code design |
title_full |
Non-Gaussian CDMA for multi-access channels: capacity analysis and code design |
title_fullStr |
Non-Gaussian CDMA for multi-access channels: capacity analysis and code design |
title_full_unstemmed |
Non-Gaussian CDMA for multi-access channels: capacity analysis and code design |
title_sort |
non-gaussian cdma for multi-access channels: capacity analysis and code design |
publisher |
McGill University |
publishDate |
2009 |
url |
http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95619 |
work_keys_str_mv |
AT amadougarbaaminata nongaussiancdmaformultiaccesschannelscapacityanalysisandcodedesign |
_version_ |
1716641798021971968 |