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Information Technology Journal
Year: 2009  |  Volume: 8  |  Issue: 7  |  Page No.: 1013 - 1019

Performance Study of Cooperative Diversity System over Nakagami-m Fading Channels

Jingning Wang, Xuejun Sha, Linan Sun and Zhongzhao Zhang    

Abstract: In this study, a cooperative diversity scheme with decoded-and-forward plus amplify-and-forward is proposed by employing truncated stop-and-wait automatic repeat request for error control. All the transmission channels are assumed to exhibit Nakagami-m fading and the cross-layer performance is analyzed for the proposed scheme, such as the channel efficiency in physical layer, throughput and packet loss rate in link layer. The simulation results show that, the proposed scheme has the better cross-layer performance than other cooperative systems. By choosing a suitable partner, the proposed cooperative scheme can provide better performance than non-cooperative systems and spatial diversity gain can be obtained.

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