【作者】 颜伟； 蔡跃明；

【Author】 YAN Wei CAI Yue-ming (Institute of Communications Engineering,PLA University of Science and Technology,Nanjing 210007,China)

【机构】 解放军理工大学通信工程学院；

【摘要】 针对双向中继信道,文章研究采用放大转发协议的物理层网络编码的渐近性能。在考虑直传链路下,给出了3时隙网络编码的可达速率。在高信噪比条件下,推导了3时隙物理层网络编码方案和2时隙物理层网络编码方案的中断概率近似表达式。通过仿真,验证了理论分析结果,并比较了物理层网络编码、协同放大转发和直接传输的中断概率性能。更多还原

【Abstract】 This paper investigates the asymptotic performance of physical-layer network coding (PNC) using amplify and forward(AF) protocol for two-way relay channels.Taking direct link between two source nodes into account,achievable rate for three time slot PNC scheme is computed.We also derive high-SNR approximations of outage probabilities for two and three slot PNC schemes.Simulation results verify our theoretical asymptotic derivations.Outage probabilities for PNC,cooperative communication using AF protocol and direct transmission schemes are compared using simulation.更多还原