MIMO系统的信号检测算法分析  

Analysis of Signal Detection Algorithm in MIMO System

作　　者：郭鸣霄 徐鹏飞[1] 王瑞山[1] 

机构地区：[1]兰州交通大学电子与信息工程学院,甘肃兰州730070

出　　处：《电子科技》2016年第3期65-67,74,共4页Electronic Science and Technology

摘　　要：MIMO已成为当今4G中的主流技术,其接收端的信号检测性能决定着其能否在提升信道容量的同时减少误码率。因此,文中研究了MIMO系统中4种主要的信号检测算法,包括ZF、MMSE、ZF-SIC和MMSE-SIC算法。通过在不同的收发天线数和不同接收天线数下各自的误码率,对4种检测算法进行了分析。结果表明,MMMSESIC检测性能最佳,ZF-SIC、MMSE次之,ZF最差。MIMO has become the mainstream 4G technology today. The detection performance of its receiving end determines whether it can enhance the channel capacity while reducing the error rate. This paper discusses the four main signal detection algorithms of ZF,MMSE,ZF-SIC,MMSE-SIC for the MIMO system. The error rates with different numbers of antennas and different numbers of antennas receiving antennas by the four detection algorithms are analyzed. The results show MMMSE-SIC has the best detection performance,followed by ZF-SIC and MMSE,with ZF being the poorest.

关 键 词：MIMO 破零检测 最小均方误差检测 排序消除检测 

分 类 号：TN958[电子电信—信号与信息处理]