Nakagami-m信道下全双工解码转发中继中断概率分析

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。 

On the Outage Performance of Full-Duplex Decode-and-Forward Relaying over Nakagami-m Fading Channels

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.