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无线网络中通过中继节点的协作可以提高网络中数据传输的物理层安全性.然而,中继节点的不可靠中继节点使物理层安全具有不确定性,基于不完全信息动态博弈,分析源节点与中继节点的博弈关系,建立不可靠中继节点行为博弈模型.根据中继节点当前行为与历史行为,并考虑误报与漏报,预测中继节点行为策略.提出基于信念的物理层安全传输机制,以保障源节点选择可靠中继节点.仿真结果表明,该机制能有效抑制中继节点的异常行为,从而保障物理层安全性.
In the wireless network, the cooperation of relay nodes can improve the physical layer security of data transmission in the network.However, the unreliable relay nodes of relay nodes make the security of physical layer uncertain. Based on the dynamic game of incomplete information, Node and relay node to establish the behavior game model of unreliable relay node.According to the current behavior and historical behavior of relay node and considering the false positives and false negatives, Secure transmission mechanism to ensure that the source node chooses a reliable relay node.The simulation results show that this mechanism can effectively suppress the abnormal behavior of the relay node and thus protect the physical layer security.