MIMO Capacity with Per-Antenna Power Constraint

被引：0
|
作者：
Vu, Mai [1 ]
机构：
[1] McGill Univ, Dept Elect & Comp Engn, Montreal, PQ H3A 2A7, Canada
来源：
2011 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE (GLOBECOM 2011) | 2011年
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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, we consider the single-user MIMO channel with per-antenna power constraint. We formulate the capacity optimization problem with per-antenna constraint in the SDP framework and analyze its optimality conditions. We establish in closed-form the optimal input covariance matrix as a function of the dual variable. We then propose a simple algorithm to find this optimal input covariance and the capacity. Results show that the capacity with per-antenna power can be significantly different from that with sum power or with independent multiple access constraint.
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页数：5
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