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Cooperative communications with relay selection in wireless sensor networks

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4 Author(s)
Li Sun ; Dept. of Inf. & Commun. Eng., Xi''an Jiaotong Univ., Xi''an, China ; Taiyi Zhang ; Long Lu ; Hao Niu

Cooperative communications is a promising technology to improve the performance of wireless sensor networks. In this paper, we propose a novel relay selection scheme combined with feedback and adaptive forwarding in cooperative communication systems. A closed form expression for the tight lower bound of its outage probability is derived and a detailed analysis of its diversity-multiplexing-tradeoff (DMT) performance is presented. Simulation results demonstrate that our method outperforms a variety of existing relay selection schemes in terms of outage performance.

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Consumer Electronics, IEEE Transactions on  (Volume:55 ,  Issue: 2 )