Relay Selection in Amplify-and-Forward Systems with Partial Channel Information
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概要
- 論文の詳細を見る
Selection relaying is a promising technique for practical implementation of cooperative systems with multiple relay nodes. However, to select the best relay, global channel knowledge is required at the selecting entity, which may result in considerable signaling overhead. In this paper, we consider the relay selection problem in dual-hop amplify-and-forward (AF) communication systems with partial channel state information (CSI). Relay selection strategies aiming at minimizing either the outage probability or the bit error rate (BER) with quantized CSI available are presented. We also propose a target rate based quantizer to efficiently partition the SNR range for outage minimized relay selection, and a target BER based quantizer for BER minimized relay selection. Simulation results show that near optimal performance is achievable with a few bits feedback to the selecting entity.
- 2010-03-01
著者
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WANG Zongxin
Department of Communication Science and Engineering, Fudan University
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Zhu Yu
Department of Pharmacy, Changhai Hospital, the Second Military Medical University
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Zhu Yu
Department Of Communication Science And Engineering Fudan University
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Fang Zhaoxi
School Of Electronic And Information Engineering Zhejiang Wanli University
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Wang Zongxin
Department Of Communication Science And Engineering Fudan University
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ZHOU Xiaolin
Department of Communication Science and Engineering, Fudan University
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Zhou Xiaolin
Department Of Communication Science And Engineering Fudan University
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Zhu Yu
Department Of Chemistry University Of Science And Technology Of China
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