干扰条件下全双工中继网络的中断分析

摘要

The full-duplex relay system with co-channel interference is discussed.Compared with the half-duplex forwarding mode,full duplex forwarding mode has even higher spectrum utilization.Based on this,the closed-form expressions for outage probability in correlated decode and forward protocols are derived under the condition of independent but identically distributed Rayleigh fading.By using the closed-form expression,the outage probability of relay system is calculated,the performance of relay system analyzed,and then the closed expression verified with Monte Carlo simulation.Simulation result indicates that the closedform solution agrees well with the simulation result,that is,the closed-form expression can fairly describe the outage performance of relay system.%对同信道干扰下的全双工中继转发系统进行研究.相对于半双工转发模式,全双工转发模式有着更高的频谱利用率.基于此,在独立但不恒等分布的瑞利衰落条件下,导出相关解码转发协议下中断概率的闭式表达式.利用此闭式表达式,对该中继系统的中断概率进行计算,进而对该中继系统进行性能分析,然后通过蒙特卡洛仿真对闭式表达式进行验证.通过仿真对比可以得出闭式解与仿真结果一致,即该闭式表达式能够较好地描述中继系统的中断性能.