In this paper we study the problem of relay-enhanced cell (REC) coverage for which relay location is optimized to maximize the achievable REC radius. The problem is investigated for both Rayleigh and Rician relay fading channels, under a pre-determined user's outage probability constraint. We propose a statistical approach to formulate the problem and develop an optimization algorithm for it. The analytical derivation is justified by numerical simulations.

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Keywords DF relay, Statistical optimization, Wireless relay network
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Conference 2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall
Yin, R. (Rui), Zhang, Y. (Yu), Zhang, J. (Jietao), Yu, G. (Guanding), Zhang, Z. (Zhaoyang), & Yanikomeroglu, H. (2010). Optimal relay location for fading relay channels. In IEEE Vehicular Technology Conference. doi:10.1109/VETECF.2010.5594269