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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 location is one of the basic requirements for wireless sensor network applications. In order to solve the problem that wireless sensor networks are vulnerable to cheating attacks by malicious nodes in an open environment, an anti-spoofing node security location algorithm is designed. The algorithm divides the reference nodes into groups, and excludes the possible malicious nodes by comparing the positioning results between different groups. In the process of grouping, the algorithm considers the optimization of reference nodes at the same time and avoids the positioning deviation caused by bad topologies. Simulation analysis shows that the algorithm can effectively resist the location information of malicious nodes and greatly improve the positioning accuracy of network nodes.