An Analysis of Scheduling and Feedback for Multiuser MIMO Systems

被引：0
|
作者：
Huang Tao [1 ]
Zhang Zhijiang [1 ]
Yang Ruizhe [2 ]
Yuan Chaowei [2 ]
机构：
[1] China Unicom, Beijing 100140, Peoples R China
[2] Beijing Univ Posts & Telecommun, Beijing 100876, Peoples R China
来源：
2009 5TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-8 | 2009年
基金：
中国国家自然科学基金;
关键词：
MIMO; multi-user diversity; limited feedback;
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 this paper, for multiuser MIMO system, we consider a suboptimal scheduling scheme that allocates the channel to the user whose channel matrix has the maximal Frobenius norm and also we derive a tight expression of system capacity for it. Furthermore, exploiting this Frobenius norm, we propose a threshold based limited feedback scheme and give a theoretical analysis between the capacity and threshold value. Simulation shows the proposed schemes can achieve tradeoffs among complexity, feedback load, and capacity enhancement with the proper threshold value, which can be obtained by our analytical approximations.
引用
收藏
页码：1041 / +
页数：2
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