Multiuser Receiver with Multi-path Diversity for DS/CDMA Systems

초록

Several multiuser detectors have been recently proposed to combat multiple-access interference and near-far problem for CDMA systems. Multiuser detectors, exploiting knowledgeof other users to cnacel multiple-access interference,have the potential to provide a significant increase in capacity of CDMA systems. In this paper,we propose a suboptimal multiuser receiver that combines multipath diversity reception, multiuser detection and decision-feedbace cancellation, Alsi, the performance analysis of the proposed multiuser receiver is developed for frequency selective Rayleigh fading channels. Numerical results show that the proposed receiver provides a significantly enhanced performancd.