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http://dx.doi.org/10.6109/jkiice.2013.17.12.2812

Determination of Effective Relay Candidates for the Best Relay Selection in Wireless Systems in the Presence of Interference  

Lee, In-Ho (Department of Electrical, Electronic and Control Engineering, Hankyong National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.17, no.12, 2013 , pp. 2812-2817 More about this Journal
Abstract
In this paper, an outage probability for the best relay selection in decode-and-forward relaying systems in the presence of interference is analyzed over Rayleigh fading channels. Based on the outage performance results, we propose a method to determine effective relay candidates for the best relay selection, where the effective relay candidates represent the relays except for relays that make no contribution to improving the performance. in all possible relays given in the system. By determining the effective relay candidates, the feedback overhead of channel state information and the energy consumption of relays can be significantly reduced while minimizing the performance degradation. In this paper, we provide important parameters that affect the determination of the effective relay candidates.
Keywords
Relay selection; Decode-and-forward relaying; Relay candidates; Interference; Outage probability;
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