Trace balancing for multiuser MIMO downlink transmission

被引：0
|
作者：
Boche, H [1 ]
Schubert, M [1 ]
Jorswieck, EA [1 ]
机构：
[1] Heinrich Hertz Inst Nachrichtentech Berlin GmbH, D-10585 Berlin, Germany
来源：
THIRTY-SIXTH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS & COMPUTERS - CONFERENCE RECORD, VOLS 1 AND 2, CONFERENCE RECORD | 2002年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
We consider the problem of balancing individual capacities in a multi-user MIMO downlink channel. If perfect channel state information is available at the base station, the rates of all users can be jointly controlled by adjusting the transmit covariance matrices. We propose a new transmission strategy based on trace balancing, which is optimal in the low SNR regime. Otherwise, it provides an approximation. An iterative algorithm is proposed, which rapidly converges to the global optimum of the trace balancing problem.
引用
收藏
页码：1379 / 1383
页数：5
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