移动无线传感网络通信信道异常攻击检测研究

摘要

对移动无线传感网络通信信道的异常攻击的检测,能够有效保障无线传感网络的安全性和稳定性.对通信信道异常攻击的检测,需要先计算出一次攻击获得的回报,进而获取攻击者和防御者之间的期望矩阵,完成攻击行为检测.传统方法先得到弱点评价体系指标,生成入侵攻击图,但忽略了获取期望矩阵,导致通信信道异常攻击检测精度偏低.提出基于动态演化的移动无线传感网络通信通道异常攻击检测方法.依据演变图的思想将异常攻击拓展为演变攻击图,构建异常攻击演化模式,融合于博弈理论给出攻防博弈模型,计算出一次攻击成功后攻击者获得的回报,在此基础上获取攻击者和防御者之间的纯策略收益期望矩阵,得到通信通道攻击者和防御者的混合策略,并完成对通信通道的异常攻击检测.实验结果表明,所提方法检测精度较高,能够有效地保障移动无线传感网络安全稳定性.%This article proposes a detection method for abnormal attack of communication channel in mobile wireless sensor network based on dynamic evolution.Firstly,we expanded abnormal attack into attack graph of evolution according to theory of evolution graph and built evolution mode of the abnormal attack,and then provided game model of attack and defense integrated with game theory,and worked out return obtained by attacker after success of one attack.On that basis,we acquired expectation matrix of pure strategy profit between attacker and defender,and obtained mixed strategy of the attacker and defender of communication channel.Experimental results show that the method has high detection precision.It can guarantee the security and stability of mobile wireless sensor network.