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Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2005.tde-08072022-134413
Document
Author
Full name
Bruno Augusto Angelico
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2005
Supervisor
Committee
Jeszensky, Paul Jean Etienne (President)
Abrão, Taufik
Burt, Phillip Mark Seymour
Title in Portuguese
Sistemas CDMA multiportadora.
Keywords in Portuguese
Comunicações digitais
Radiocomunicação
Telefonia
Abstract in Portuguese
Os sistemas CDMA multiportadora estão sendo considerados como fortes candidatos a integrar um dos padrões de telefonia móvel digital de quarta geração, principalmente por serem relativamente robustos aos efeitos nocivos de um canal de comunicação móvel com altas taxas de transmissão. O presente trabalho traz um estudo comparativo em termos de desempenho de três desses sistemas: MC-CDMA, MC DS-CDMA ortogonal e MT-CDMA. Os resultados aqui apresentados são obtidos analiticamente a partir de desenvolvimentos encontrados na literatura e também via simulação computacional Monte Carlo. Dentre os sistemas analisados, o MC-CDMA é o que apresentou um melhor resultado em termos de probabilidade de erro de bit. Entretanto, tal conclusão se restringe às configurações utilizadas e às simplificações adotadas para a obtenção das figuras de mérito dos sistemas.
Title in English
Multicarrier CDMA systems.
Keywords in English
CDMA
Digital communications
Digital telephony
OFDM
Abstract in English
Multicarrier CDMA systems have been considered as good candidates to integrate one of the fourth generation wireless mobile communications standards, mainly because they are relatively robust to the degrading effects of a mobile communication channel with high transmission rates. The present work brings a comparative performance study of three multicarrier CDMA systems: MC-CDMA, MC DS-CDMA orthogonal and MT-CDMA. The results presented here are obtained analytically according to some developments found in the literature and also by Monte Carlo simulation. The MC-CDMA system had the best result in terms of bit error rate. However, it is important to point out that such conclusion limits to the configurations used and the simplifications adopted to obtain the systems performance.
 
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Publishing Date
2022-07-08
 
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