基于MMSE的迭代多用户检测器的性能分析与仿真  

Performance analysis and simulation of MMSE based iterative multi-user detector

作　　者：胡东昌[1] 王琳[1] 魏琴芳[1] 

机构地区：[1]重庆邮电大学编码技术研究所,重庆400065

出　　处：《重庆邮电学院学报（自然科学版）》2006年第6期696-698,共3页Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)

基　　金：教育部新世纪优秀人才计划项目(NCET-04-0601);重庆邮电大学青年教师基金项目(A2005-29)

摘　　要：基于数据处理不等式,分析了采用软干扰消除技术的最小均方误差(MMSE)迭代多用户检测器的输出与发端输入的互信息,以及多用户检测器在已编码CDMA系统中的误比特率(BER)性能,从互信息和渐近效率的角度得出:基于MMSE的迭代多用户检测器为渐进最优。Based on data processing inequality, the authors analyzed the mutual information of the data bits of the transmitter and the output of the MMSE based soft interference cancellation itera- tive multi-user detector, and they also studied on the bit error rate（BER） of the iterative multi-user detector in the coded CDMA system. From the aspect of mutual information and asymptotic efficiency, they deduced that the MMSE based iterative multi-user detector is asymptotic optimal.

关 键 词：最小均方误差(MMSE) 多用户检测 TURBO 软干扰消除 

分 类 号：TN929.5[电子电信—通信与信息系统]