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研究了由源、目的、干扰中继和窃听者组成的四终端网络中干扰中继和源之间的博弈问题。其中干扰中继帮助窃听者最小化安全速率,而源的目标是最大化安全速率,源和干扰中继构成了博弈问题,采用了非合作零和博弈来解决此问题,得出博弈双方各自最优策略的表达式,并根据极大极小值定理分析了纳什均衡点的存在性。这里仿真结果采用的方法能非常有效地降低安全速率,且存在纳什均衡点。
The problem of the game between interference relays and sources in four terminal networks composed of source, destination, interference relay and eavesdropper is studied. Interference relay helps the eavesdropper to minimize the security rate. The goal of the source is to maximize the security rate. The source and interference relays constitute a game problem. Non-cooperative zero-sum game is adopted to solve this problem. Optimal strategy, and analyzes the existence of Nash equilibrium point according to the maximum and minimum theorem. The method used in the simulation results here reduces the safety rate very effectively and there is a Nash equilibrium point.