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分析了模拟网络编码双向中继窃听信道可达安全速率特性的影响因素.建立了存在一个窃听者的窃听信道模型,并推导了可达安全速率的表达式.通过对特定场景进行数值仿真和分析,结果表明:当窃听者位于某些范围内时,存在可达安全速率为零的情况;通过增大窃听者和被窃听节点之间的距离、角度和优化节点功率分配,可以提高模拟网络编码双向中继窃听信道的可达安全速率.
The influencing factors of the reachable security rate of bidirectional relayed eavesdropping channel in analog network are analyzed, and a model of eavesdropping channel with an eavesdropper is established and the expression of reachable secure rate is deduced.The numerical simulation and analysis of a specific scene The results show that when the eavesdropper is located within some range, there is a situation where the security rate can reach zero. By increasing the distance and angle between the eavesdropper and the eavesdropped node and optimizing the node power allocation, the simulation network coding can be improved Bidirectional relay eavesdropping reachable channel security rate.