多径信道下基于最小平均峰度准则的盲多用户检测算法  

A Novel Blind Multiuser Detector Based on LMK Criterion for Synchronous DS/CDMA System Over Multipath Fading Channels

作　　者：蒋笑冰[1] 薛强[2] 刘亚伟[1] 冯玉珉[1] 

机构地区：[1]北京交通大学电子信息工程学院,北京100044 [2]北京邮电大学,北京100876

出　　处：《北方交通大学学报》2004年第3期92-94,98,共4页Journal of Northern Jiaotong University

摘　　要：基于最小平均峰度(LMK)准则,提出了一种适用于同步直扩码分多址(DS/CDMA)系统多径慢衰落信道中的盲自适应多用户检测算法.这种算法基于高阶统计量特性,算法复杂度相对较低.仿真结果表明,该算法的稳态性能与子空间自适应多用户检测算法相当,是一种较好的多用户检测算法,有一定的实际应用价值.In this paper, a novel linear blind adaptive multiuser detection is proposed, based on LMK Criterion in Multipath fading channels and in synchronous DS/CDMA system. Analysis shows that this algorithm satisfies the decorrelating conditions. The new algorithm reduces complexity remarkably compared with the classical SVD subspace algorithm. Simulation results illustrate that the new algorithm can offer stable convergence and good detection performance.

关 键 词：无线通信技术 最小平均峰度准则 多用户检测 码分多址 

分 类 号：TN911.23[电子电信—通信与信息系统]