Outage probability of amplify-and-forward cooperation with full duplex relay
Outage probability of amplify-and-forward cooperation with full duplex relay
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DOI：
10.1109/wcnc.2012.6214473
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发表时间：
2012-04
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影响因子：
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通讯作者：
Tae Min Kim;A. Paulraj
中科院分区：
文献类型：
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作者：
Tae Min Kim;A. Paulraj
我们研究了放大转发（AF）与全双工中继（FDR）合作的中断性能。当存在不可忽略的直接链路或残余自干扰（RSI）时，全双工中继将有效信道转换为频率选择性信道。假设最小均方误差判决反馈均衡（MMSE-DFE）在目的地，我们推导出严格的封闭形式的中断概率表达式的AF-FDR的界，并研究了直接链路和RSI的最佳双工模式选择的效果。结果表明，在一个强的直接链接，FDR变得不那么有益，由于持续的噪声放大。此外，均衡的RSI在目的地示出，以提供更优雅的性能下降相比，在以前的作品中考虑的一个简单的接收器，它把RSI作为噪声。
We study the outage performance of an amplify-and-forward (AF) cooperation with full duplex relaying (FDR). When there exists a non-negligible direct link or residual self interference (RSI), full duplex relaying turns the effective channel into a frequency selective channel. Assuming minimum mean squared error decision feedback equalization (MMSE-DFE) at the destination, we derive tight closed-form bounds on the outage probability expression for AF-FDR, and study the effect of the direct link and the RSI in the optimal duplex mode selection. It is shown that under a strong direct link, FDR becomes less beneficial due to the persistent noise amplification. Furthermore, equalizing the RSI at the destination is shown to provide more graceful performance degradation compared to a simple receiver considered in previous works, which treats the RSI as noise.