Optimal BD-ZF precoder for multi-user MIMO downlink transmission

被引：1
|
作者：
Yao, Rugui [1 ]
Nan, Huani [1 ]
Xu, Juan [2 ]
Li, Geng [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Elect & Informat, Xian 710072, Peoples R China
[2] Changan Univ, Sch Elect & Control Engn, Xian, Peoples R China
来源：
ELECTRONICS LETTERS | 2015年 / 51卷 / 14期
关键词：
MIMO communication; precoding; interference suppression; determinants; optimisation; optimal BD-ZF precoder; multiuser MIMO downlink transmission; multiple-input multiple-output transmission; block-diagonal zero-forcing precoder; multiuser interference suppression; MUI suppression; base station; BS; determinant maximisation technique; throughput improvement;
D O I：
10.1049/el.2015.0517
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：
For multi-user MIMO downlink transmission, a block-diagonal zero-forcing (BD-ZF) precoder is usually used to suppress multi-user interference. In the case of a large number of transmitted antennas installed at the base station, there exists a larger nullspace than the precoder requires. An optimal BD-ZF precoder is developed to maximise throughput using the determinant maximisation technique. It helps to gather all gain for the transmission of each user. Numerical results validate that the precoder obtains throughput improvement.
引用
收藏
页码：1121 / 1123
页数：2
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