单中继MIMO通信系统的中继算法研究  

Research on the Relay Algorithm of Single Relay MIMO Communication System

作　　者：孙会楠[1] SUN Huinan(School of Electronic an Information Engineering,Harbin Huade University,Harbin 150025,China)

机构地区：[1]哈尔滨华德学院电子与信息工程学院,黑龙江哈尔滨150025

出　　处：《太原学院学报（自然科学版）》2020年第3期29-34,共6页Journal of TaiYuan University:Natural Science Edition

摘　　要：简要介绍了多用户MIMO中继通信系统和预编码技术原理。对迫零算法、线性最小均方误差算法和匹配滤波算法进行原理推导以及数学分析,并且运用MATLAB对这三种算法进行仿真,比较分析在单中继MU-MIMO通信系统下采用这三种不同算法时对用户总容量和误码率的影响。总结出当通信系统工作在低信噪比情况时,基于匹配滤波准则下的预编码算法无论是用户总容量,还是误码率性能都要优于其他两种算法。This paper introduces the principle of multi-user MIMO relay communication system and precoding technology.The principle derivation and mathematical analysis of zero forcing algorithm,linear least mean square error algorithm and matched filter algorithm are carried out,and MATLAB is used to simulate these three algorithms,and the influence of these three algorithms on the total capacity and error rate of users is compared and analyzed under the single relay MU-MIMO communication system.It is concluded that the precoding algorithm based on the matched filtering criterion is superior to the other two algorithms in terms of both the total capacity of users and the BER performance when the communication system works in the low SNR situation.

关 键 词：MIMO 中继 多用户 预编码 信道容量 

分 类 号：TH77[机械工程—仪器科学与技术]