A near optimal linear precoding for multiuser MIMO throughput maximization

被引：0
|
作者：
Jang, Seunghun [1 ]
Yang, Janghoon [1 ]
Eom, Seungyeon [1 ]
Kim, Dong Ku [1 ]
机构：
[1] Yonsei Univ, Dept Elect & Elect Engn, Seoul 120749, South Korea
来源：
2008 IEEE 67TH VEHICULAR TECHNOLOGY CONFERENCE-SPRING, VOLS 1-7 | 2008年
关键词：
D O I：
暂无
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：
This paper considers a linear precoding scheme that achieves near optimal sum rate. While the minimum mean square error(MMSE) precoding provides the better MSE performance at all signal-to-noise ratio(SNR) than the zero forcing(ZF) precoding, its sum rate shows superior performance to ZF precoding at low SNR but inferior performance to ZF precoding at high SNR. From this observation, we first develop a near sum rate optimal linear precoding scheme for the case of single receive antenna per user. The resulting precoding scheme regularizes; ZF precoding to maximize the sum rate, resulting in better sum rate performance than both ZF precoding and MMSE precoding at all SNR. The proposed scheme is extended to the case of the multiple receive antennas, and it shows the better sum rate performance than the block diagonalization(BD) scheme at all SNR.
引用
收藏
页码：792 / 796
页数：5
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