Performance Evaluation on Multi-user Detector for CDMA Systems

초록

Several multiuser detectors have been proposed to combat multiple-access interrerence and near-far problem for CDMA systems. In this paper, we derive a closed form expressin for BER performance of the decorrelating DF detector in AWGN and single-path Rayleigh fading channel. A modified DF detector proposed in this paper results in significantly enhanced performance.