大规模MlMO系统中的STBC-BF发射方案

doi:10.11959/j.issn.1000-0801.2015263

摘要/Abstract

摘要：

提出了大规模MIMO 系统中的特征波束形成结合空时编码（space-time block coding combined with eigen-beamforming,STBC-BF）的发射方案。首先进行发射符号的空时编码，然后进行特征波束成形。接收端在两个正交的空间波束上进行空时译码，既可以获得空间分集增益，又可以获得阵列增益。理论分析和仿真结果都证明了该方案的有效性。

关键词: 大规模MIMO, 波束成形, 空时编码, STBC-BF

Abstract:

A STBC-BF transmit scheme in massive MIMO system was proposed.Firstly,the signal was space-time block coded,then passed into the eigen-beamformers,respectively.At the receiver,the space-time decoding was performed on two orthogonal beams.The diversity gain and beamforming gain can be obtained simultaneously.Both theory analysis and simulation results confirm the validity of the proposed scheme.

Key words: massive MIMO, beamforming, space-time block coding, STBC-BF

康涛,战金龙. 大规模MlMO系统中的STBC-BF发射方案[J]. 电信科学, 2015, 31(11): 55-59.

Tao Kang,Jinlong Zhan. A STBC-BF Transmit Scheme in Massive MIMO System[J]. Telecommunications Science, 2015, 31(11): 55-59.

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仿真参量	定义
终端天线数	1
小区半径	1（归一化）
用户与基站距离	2/3（归一化）
路径损耗指数e	3.7
空间路径数L	2
调制方式	BPSK
阵元间距	1/2波长

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