A User Selection Criterion for Vector-Perturbation Precoding in Multiuser Systems

被引：0
|
作者：
Choi, Jinho [1 ]
机构：
[1] Swansea Univ, Coll Engn, Swansea SA2 8PP, W Glam, Wales
来源：
2013 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC) | 2013年
关键词：
precoding; multi-user MIMO; user selection; GAUSSIAN BROADCAST CHANNEL; SUM CAPACITY; COMMUNICATION; DUALITY;
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：
In order to support multiple users simultaneously in a multi-antenna downlink system, the zero-forcing (ZF) precoding and dirty paper coding (DPC) approaches have been proposed. It is well-known that the user selection plays a crucial role in improving the performance of multiuser precoding with ZF and DPC. While the user selection criteria based on the sumrate maximization are extensively studied for ZF and DPC, it is relatively not well investigated for the vector perturbation (VP) approach, which is known to be near optimal. In this paper, we derive a user selection criterion for VP and a greedy algorithm for the user selection in a multiuser system.
引用
收藏
页码：3203 / 3207
页数：5
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