Optimal Beamforming in Wireless Multiuser MIMO-relay Networks

被引：0
|
作者：
Golbon-Haghighi, Mohammad-Hossein [1 ]
Shirazi, Mojtaba [1 ]
Mahboobi, Behrad [1 ]
Ardebilipour, Mehrdad [1 ]
机构：
[1] Pasargad Higher Educ Inst, Shiraz, Iran
来源：
2013 21ST IRANIAN CONFERENCE ON ELECTRICAL ENGINEERING (ICEE) | 2013年
关键词：
Semi-definite programming; MIMO; relay networks; power allocation; beamforming; MIMO-relay; COOPERATIVE DIVERSITY; OPTIMIZATION; PROTOCOLS;
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：
This paper deals with optimal beamforming in wireless multiple-input-multiple-output (MIMO) relay networks that involves multiple concurrent source-destination pairs with imperfect channel state information (CSI) at relays. Our aim is the optimization of the MIMO relay weights that minimize the total relay transmit power subject to signal-to-interference-plus-noise ratio (SINR) of all destinations to be kept above a certain threshold. Since power minimization is a non-convex quadratically constrained quadratic program (QCQP), we use semi-definite programming (SDP) relaxation of above mentioned problem by using a randomization technique.
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页数：5
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