Performance Evaluation of Near-Far Resistant Receiver for DS/CDMA Cellular System over Fading Multipath Channel

Ahmed SAIFUDDIN  Ryuji KOHNO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E78-B    No.8    pp.1136-1144
Publication Date: 1995/08/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Technologies for High-Speed Mobile Communications)
Category: 
Keyword: 
AME,  near-far problem,  fading,  CCl cancellation,  

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Summary: 
In this paper performance of M-stage detection for DS/CDMA is considered in terms of near-far resistance. Asymptotic multiuser efficiency (AME) of M stage detection over fading multipath channel is calculated and it is shown that even in the fading case the detector is near-far resistant i.e., insensitive to the relative energies of the users. The idea is extended to cellular environment. The effect of power control imperfection is investigated. It is shown that capacity can be increased if near-far resistant technique is employed in conjunction with limited power control.