Successive Precoding and User Selection in MU-MIMO Broadcast Channel with Limited Feedback

被引：0
|
作者：
Chen, Long [1 ]
Chen, Zhi [1 ]
Liu, Li [1 ]
Fu, Bin [1 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Key Lab Sci & Technol Commun, Chengdu 611731, Peoples R China
来源：
2014 WIRELESS TELECOMMUNICATIONS SYMPOSIUM (WTS) | 2014年
关键词：
multi-user MIMO; precoding; user selection; limited feedback;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we propose a joint successive precoding and user selection algorithm in multi-user multipleinput multiple-output (MIMO) broadcast channel with limited feedback. The proposed scheme recalculates each user's best precoding vector by projecting the original precoding vector, which is obtained by limited feedback, onto the orthogonal complement space of the precoding vectors of the selected users. The base station (BS) then calculates the estimated signal-to-interference-plus-noise ratio (SINR) for each unselected user using the best precoding vector, and choose the one with the largest SINR. Numerical results illustrate the performance of the scheme.
引用
收藏
页数：5
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