Relay Selection for MIMO Cooperative Networks and Outage Performance Analysis

LIU Yi, ZHANG Jianhua, LI Xiaofan, LIU Zemin
JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2010 ( Vol.33 No.5 )
DOI:
Publish Year: 2010, content in Simplified Chinese

Abstract: A selection scheme is proposed for the cooperative transmission of multiple-input multiple-output (MIMO) regenerative cooperative system. Single relay node is selected to maximize the minimum-case channel power gain among all relay nodes. Outage performance is analyzed through an approximate method. Under this selection scheme, a simple power allocation method is also developed for the sum power constrained network. Analysis and simulation demonstrate that this scheme can achieve a significant improvement in terms of outage performance. A distributed selection scheme is proven to have a good balance between the system performance and the implementation complexity. Therefore, it is a promising choice for practical utilization.

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