【摘要】 无线传感器网络的广泛应用扩展了人们获取信息的能力,但是其固有的网络特点使得其更容易遭受网络攻击。现有的入侵检测系统通常只针对特定的攻击方式,对其他的攻击则无能为力。另外增加的能量消耗降低了网络的使用寿命。由此,以博弈论为理论基础,对无线传感器网络中的攻防过程进行分析,通过分析模型均衡解来论证执行入侵检测系统的必要性。针对网络入侵者攻击手段的多样性问题,对博弈模型进行深化改进,建立非合作完全信息静态博弈模型,通过分析模型的混合纳什均衡解,得出入侵检测系统的最佳防守策略,平衡了系统的能量消耗和检测效率。仿真实验结果表明,基于博弈的无线传感器网络入侵检测系统不仅能够有效地抵御多种网络攻击,而且降低了入侵检测系统所引起的能量消耗,延长了网络的使用寿命。更多还原

【Abstract】 Wide application of wireless sensor networks extends people’s ability to obtain information,but its inherent network characteristics make it more vulnerable to cyber-attack.Current intrusion detection systems are against for specific attacks,but powerless for other attacks and consump a little high energy,thus reduce the lifetime of the network.The paper proposed an intrusion detection model based on game theory,in which the attack-defense process between intrusion detection system and attacker is looked as a non-cooperative game model.To deal with the problem of diversity network intruder attacks,game model has been improved and established a non-cooperative information static game model.By analyzing the model’s mixed Nash equilibrium,the optimal defense strategy is obtained.It can balance the detection efficiency and energy consumption of the system.The simulation results show that the intrusion detection system based on game theory not only can resist a variety of network attacks effectively,but also reduce the energy consumption and prolong the lifetime of the network.更多还原