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MIMO系统的波束成形技术与开关算法结合的性能分析
宋维君,胡小丽,张艳
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(南京信息职业技术学院，南京 210046)

摘要:

提出了一种在多用户情况下多输入多输出系统用开关算法结合波束成形技术的方法。对3种波束成形技术的方案研究表明，波束成形的处理过程对开关算法的判决准则有重要影响。从仿真结果可以看到，空时分组码的自适应波束成形算法与开关算法结合时在误码率为10 -2时，信噪比比迫零算法结合和奇异值分解算法结合时分别提高7 dB和8 dB 左右。

关键词: 多输入多输出系统波束成形开关算法空时分组码迫零算法奇异值分解

DOI：

基金项目:

Performance Analysis of MIMO Systems Based on Beamforming Techniques Combined with Switching Algorithm

SONG Wei-jun,HU Xiao-li,ZHAN Yan

(Nanjing College of Information Technology,Nanjing 210046,China)

Abstract:

This paper studies on switching algorithm performance when it is co mbined with several beamforming techniques in a multiuser MIMO communication s ys t em. The study of three beamforming solutions shows that the beamforming processi ng has an important influence on the decision criterion of the switching algorit hm.Simulation results demonstrate that when spacetime block codes(STBC) with a daptive beamforming algorithm are combined switching algorithm at the BER=10 -2, the SN R is increased by about 7dB and 8dB respectively in comparison with the combinat ion of zero forcing(ZF) algorithm and singular value decomposition algorithm(SVD).

Key words: MIMO system beamforming swithching algorithm space time block coding zero forcing algorithm singular value decomposition