摘要
节点位置定位是无线传感器网络应用的基本要求之一。针对无线传感器网络在开放性环境中应用容易遭受恶意节点欺骗攻击的问题,设计了一种抗欺骗的节点安全定位算法。算法将参考节点进行分组划分,并通过不同分组之间定位结果的比较,排除其中可能存在的恶意节点。在分组过程中,算法同时考虑了参考节点的优选问题,避免不良拓扑结构造成的定位偏差。仿真试验分析表明,算法能够有效地抵抗恶意节点的定位信息欺骗,大大提高了网络节点的定位精度。
Node localization is one of the basic requirements for the applications of wireless sensor network. In an open application environment, wireless sensor network is vulnerable to spoofing attacks from malicious nodes, and thus a secure localization algorithm of anti-spoofing node is proposed. This algorithm first makes group division of the referenced nodes, and then excludes the malicious nodes by comparing the localization results from different referenced node groups. During the group-dividing process, this algorithm also gives consideration to the optimal selection of the referenced nodes, thus to avoid the localization error caused by bad topology. The simulation analysis indicates that this algorithm could effectively resist the spoofing localization information from malicious nodes and greatly improve the localization accuracy of the network nodes.
出处
《通信技术》
2012年第7期28-31,共4页
Communications Technology
关键词
无线传感器网络
定位算法
抗欺骗
安全定位
wireless sensor network
localization algorithm
anti-spoofing
secure localization
