A practical transmit beamforming strategy for closed-loop MIMO communication

被引：13

作者：

Cho, Sunghyun ^{[2
]}

Hwang, Insoo ^{[3
]}

Tarokh, Vahid ^{[4
]}

You, Cheolwoo ^{[1
]}

机构：

[1] Myongji Univ, Dept Informat & Commun Engn, Yongin 449728, Gyeonggi Do, South Korea

[2] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA

[3] Gyeongsang Natl Univ, Dept Comp Sci, Gyeongsangnam Do, South Korea

[4] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA

来源：

INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS | 2012年 / 25卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

MIMO; transmit beamforming; dirty-paper coding; spatial division multiple access; spatial multiplexing;

D O I：

10.1002/dac.1310

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new beamforming strategy is proposed for multiuser systems with N transmit antennas at the transmitter and M ? N single antenna receivers. The proposed scheme remarkably improves on the classical spatial division multiple access, and achieves the same data rates as spatial multiplexing for all users but with significantly superior performance/diversity gain. When compared with the Bell labs layered spacetime system, the symbol rate is the same and the performance is much superior because of the presence of diversity gain. In addition, unlike the Bell labs layered spacetime system, the receivers do not need to know each other's vector channels. Finally, the proposed algorithm is based on dirty-paper coding, but does not require much complexity and is implementable. Copyright (c) 2011 John Wiley & Sons, Ltd.

引用

页码：1091 / 1099

页数：9

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