Adaptive Multiuser Detection Based on Gibbs Sampler

摘要：

We present an adaptive multiuser detection scheme in multipath channel for coding CDMA systems. The scheme uses the Gibbs sampler1 to estimate the channel gains and the transmitted symbols. In receiver, the channel decoder delivers information about the code bits prior distributions, which can be fed back to the multiuser detector to refine its detection processing. We estimate the BER of the feedback for multipath channels with quasi-static Rayleigh fading and quadrature phase-shift keying (QPSK) transmission. The simulation results show that the novel multiuser detector can offer the better performance in the DS-CDMA systems.

关键词： CDMA Systems Adaptive Multiuser Detection Gibbs Sampler

作者: LU Ling-yun XIAO Yang DU Hai-feng

作者单位: Institute of Information and Science,Beijing Jiaotong University,Beijing,P.R.China,100044

会议类型: 国际会议

会议名称: The IET 2nd International Conference on Wireless,Mobile & Multimedia Networks(第二届IET国际无线移动多媒体网络会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）