基于进化博弈论的工业无线传感网能耗攻防研究

摘要

无线传感器节点由于部署、维护简单易行被广泛应用在工业网络中,并形成了工业无线传感器网络(Industrial Wireless Sensor Network,IWSN).针对在工业控制网络中的能量耗尽攻击的内部机理进行了详尽的分析,提出了基于进化博弈理论的能量耗尽攻防模型,将各个博弈方的收益函数定义为信誉值的函数,从而通过收益函数来约束博弈方的行为,并在理论上证明了该博弈的进化稳定策略的存在性.选取了策略选择概率作为算法的评价指标,设计并实施了大量仿真实验对算法进行验证.实验结果表明无论博弈双方的初始策略集概率分布如何,最终能达到有效防止能耗攻击的目的.%Because of its simple and feasible deployment and maintenance,the wireless sensor networks are widely used in industrial network and a new type of network called industrial wireless sensor network (IWSN)is formed.The essential mechanism of the energy exhausting attack in industrial control network was analyzed in detail firstly.The attack and defense model of energy exhausting attack based on the evolutionary game theory was proposed.The utility functions of each gane player were formulated as a function of their reputation values.Thus their behavior was regulated by the corresponding utilities.The existence of the evolutionary stable strategy (ESS) was proved by theoretical analysis.The strategy selection probability was chosen as the evaluation metric.Finally,extensive simulation experiments were conducted and the results showed that the energy exhausting attack could be effectively prevented no matter how to distribute the initial strategy.