POWER MINIMIZATION IN THE MULTIPLE STREAM MIMO BROADCAST CHANNEL WITH IMPERFECT CSI

被引：0
|
作者：
Gonzalez-Coma, Jose P. [1 ]
Joham, Michael [2 ]
Castro, Paula M. [1 ]
Castedo, Luis [1 ]
机构：
[1] Univ A Coruna, Dept Elect & Syst, La Coruna, Spain
[2] Tech Univ Munich, Associate Inst Signal Proc, D-80290 Munich, Germany
来源：
2014 IEEE 8TH SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP (SAM) | 2014年
关键词：
DOWNLINK; OPTIMIZATION;
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：
We address the design of linear precoders and receivers in a MIMO Broadcast Channel (BC) with perfect Channel State Information (CSI) at reception but partial CSI at the transmitter. Our aim is to minimize the transmit power subject to per-user rate constraints when multiple streams of data are sent to each user. We develop a gradient-projection algorithm to convert the per-user constraints into per-stream constraints. The MIMO BC linear precoders and receivers that minimize the transmit power are then obtained with an alternating optimization algorithm.
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页码：165 / 168
页数：4
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