On Robust Weighted Sum Rate Maximization for MIMO Interfering Broadcast Channels with Imperfect Channel Knowledge

被引：13
|
作者：
Lee, Hyun-Ho [1 ]
Ko, Young-Chai [1 ]
Yang, Hong-Chuan [2 ]
机构：
[1] Korea Univ, Sch Elect Engn, Seoul 136713, South Korea
[2] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC, Canada
来源：
IEEE COMMUNICATIONS LETTERS | 2013年 / 17卷 / 06期
基金：
新加坡国家研究基金会;
关键词：
MIMO interfering broadcast channels; weighted sum rate; imperfect channel knowledge; BEAMFORMING DESIGN; SYSTEMS; OPTIMIZATION; MMSE;
D O I：
10.1109/LCOMM.2013.043013.130264
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this letter, we propose robust transceiver designs for MIMO interfering broadcast channels while taking imperfect channel knowledge into consideration. By exploiting the relationship between the weighted sum rate (WSR) and the weighted sum mean square error, we design a transceiver that maximizes WSR subject to per base station power constraint. We also develop a transceiver design with lower complexity than the WSR maximization transceiver by adopting the power constraint per user. From simulation results, we confirm the resilience of both the proposed designs against imperfect channel knowledge.
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页码：1156 / 1159
页数：4
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