工业无线传感器网络中干扰攻击的入侵检测

针对工业无线传感器网络的干扰攻击问题,采用一种基于统计过程控制理论控制图的入侵检测方法.选择数据包投递失败率作为度量属性,计算出对应的控制图上下限,通过监视传感器节点的数据包投递失败率是否在控制图的上下限内,判断节点是否处于被干扰攻击状态;基于工业无线传感器网络标准WirelessHART中采用的时隙跳频技术,建立一种干扰攻击模型,验证入侵检测方法的有效性.仿真结果表明干扰攻击检测方法能有效的检测出节点是否处于被干扰攻击状态,并且漏检率较低,随环境恶化时漏检率变化幅度较小.

Intrusion Detection of Jamming Attack in Industrial Wireless Sensor Networks

Aiming to solve the problems of jamming attacks in industrial wireless sensor networks,this paper presents an intrusion detection method based on control chart of statistical process control.Packet delivery failure rate is cho-sen as the metric attribute,and the upper and lower limits of the corresponding control chart are calculated. By mo-nitoring packet delivery failure rate of sensor nodes in the control chart,the node is judged in the state of being jammed attack or not. Based on the time synchronization channel hopping technology used in the WirelessHART standard for industrial wireless sensor networks,a jamming attack model is established to verify the effectiveness of the intrusion detection method. The simulation results show that the detection method of jamming attack can effec-tively detect whether a node is in the state of being jammed attack with a lower failure rate,and also with a smaller amplitude variation of the missing rate as the deterioration of the environment.