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Exact Outage Probability Analysis for Selection Decode-and-Forward Cooperation Systems

机译：选择编解码协作系统的精确中断概率分析

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摘要

In this paper, we present a selection decode-and- forward (S-DF) cooperation scheme where only the "best" relay, which is selected as the one who can decode correctly its received signal from source node and can achieve the highest instantaneous signal-tonoise ratio (SNR) at the destination, participates in relaying the source's signal.We derive a novel exact closed-form expression of outage probability for the S-DF scheme over Rayleigh fading channels, based on which an asymptotic outage analysis is further presented in high SNR regime, showing that given M potential relays, M+1 diversity order is achieved by source node.Consequently, the proposed S-DF scheme with the best relay selection can achieve the full diversity at the expense of just two channels only regardless of the number of candidate relays.
机译：在本文中，我们提出了一种选择解码和转发（S-DF）协作方案，其中只有“最佳”中继被选为可以正确解码其从源节点接收到的信号并可以实现最高瞬时值的中继。目的地的信噪比（SNR）参与中继源的信号在高SNR体制下进行的研究表明，在给定M个潜在中继的情况下，M + 1分集阶数由源节点实现。无论候选中继的数量如何。

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