This paper considers the multiuser relay network, which applies Laneman's seminal protocol of selective decode-and-forward relaying. We mainly consider the opportunistic scheduling scheme which selects the user who has the largest received signal-to-noise ratio at the destination for transmission. We derive the exact and asymptotic expressions for the outage probability under Rayleigh fading, and the diversity analysis reveals that a total diversity order of $K+1$ can be achieved, where $K$ is the number of users. Besides, we propose a new multiuser scheduling scheme which achieves the same outage performance and improves the fairness among users. Finally, numerical simulations are presented to validate the analytical results.
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机译:本文考虑了多用户中继网络,应用Laneman的选择性解码和前进中继的开场协议。 我们主要考虑选择具有在目的地的最大收到的信噪比的用户进行传输的机会的调度方案。 我们从瑞利褪色下的停电概率获得了精确和渐近表达,并且多样性分析显示,可以实现总分集阶数,其中可以实现$ k + 1美元,其中$ k $是用户的数量。 此外,我们提出了一种新的多用户调度方案,实现了相同的中断性能并提高了用户之间的公平性。 最后,提出了数值模拟以验证分析结果。
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