基于信任机制的电力无线传感网络安全簇头选举算法

Trust Mechanism Based Secure Cluster Head Election Algorithm for Electric Power Wireless Sensor Networks

无线传感网络(wireless sensor network,WSN)越来越多地应用于生产生活中的感知和监测场景中,但所处环境中大量的传感器节点通常面临着被攻击的安全风险。传感器节点资源受限,安全防护脆弱,在采集数据时容易遭受选择性转发、伪造篡改数据等恶意攻击,使系统遭受不必要的损失。提出了一种基于信任机制的无线传感网络安全簇头选举算法,综合考虑节点的历史通信记录、数据一致性、簇内节点距离以及和基站之间的距离,将通信质量和能耗考虑在内,通过时间周期轮替保证簇头节点的能耗公平性,选举安全可靠的簇头作为簇群的汇聚节点。仿真结果表明,该算法能有效避免恶意节点当选簇头,提高无线传感网络的安全性。

Wireless sensor network(WSN)is increasingly applied in sensing and monitoring scenarios,but a large number of sensor nodes usually face high security risks.Having limited resources and weak security protection,sensor nodes are vulnerable to malicious attacks such as selective forwarding,forgery and tampering of data in collecting data,resulting in unnecessary damage to the system.A trust mechanism based secure cluster head election algorithm is thus proposed for wireless sensor networks.Considering the historical communication records,data consistency,the distance between nodes in the cluster and the distance between base stations,as well as the communication quality and energy consumption,the safe and reliable cluster heads are elected as the aggregation node of the current cluster.At the same time,the fairness of energy consumption of selected cluster head nodes is guaranteed by time cycle rotation.Finally,the simulation results show that the algorithm can effectively avoid the malicious nodes being selected as cluster heads and improve the security of wireless sensor networks.