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Nakagami-m信道下全双工解码转发中继中断概率分析
引用本文:王雨榕,徐友云,王文力,许魁.Nakagami-m信道下全双工解码转发中继中断概率分析[J].信号处理,2016,32(3):304-312.
作者姓名:王雨榕  徐友云  王文力  许魁
作者单位:解放军理工大学通信工程学院
基金项目:国家自然科学基金重大研究计划(61371123);国家自然科学基金项目(61371123, 61301165);江苏省自然科学基金项目(BK2011002, BK2012055);中国博士后科学基金特别资助项目(2015T81079);中国博士后科学基金项目(2014M552612)和江苏省博士后科学基金项目(1401178C)资助
摘    要:研究存在残余自干扰(residual self-interference, RSI)条件下全双工解码转发中继的中断概率性能。在Nakagami-m信道下,推导了多跳解码转发(multi-hop decode-and-forward,MH-DF)策略和选择解码转发(selected decode-and-forward,SDF)策略的端到端中断概率闭合表达式和渐近表达式,分析了两种策略的可达分集度。结果显示,MH-DF策略的可达分集度为0,SDF策略的可达分集度由信道成型因子和中继功率伸缩方案决定。相比于MH-DF策略,SDF策略具有更优的中断概率性能和抗自干扰能力。 

关 键 词:全双工中继    解码转发    Nakagami-m    中断概率    分集度
收稿时间:2015-07-03

On the Outage Performance of Full-Duplex Decode-and-Forward Relaying over Nakagami-m Fading Channels
Affiliation:College of Communication Engineering, PLA University of Science and Technology
Abstract:In this paper, we analyze the outage probability of decode-and-forward based full-duplex relaying with non-negligible residual self-interference (RSI). The exact and asymptotic expressions of outage probabilities for multi-hop decode-and-forward (MH-DF) protocol and selected decode-and-forward (SDF) protocol are derived in closed-form over Nakagami-m fading channels. Our results show that the achievable diversity of MH-DF protocol is zero, while the achievable diversity of SDF protocol depends on the shape factors of fading channels and the power scaling scheme of the relay. Moreover, we show that the SDF protocol achieves the better outage performance and is robust to the residual self-interference when compared with MH-DF protocol. 
Keywords:
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