In resource-constrained sensor networks, how to locate the sensor's coordinates securely and effectively is one of the most challenging problems. A lot of algorithms of the security localization were analyzed, and a distributed RSSI-based DPC (distance and position consistent) security location algorithm was brought forth. The algorithm can detect and filter out the false nodes that are generated by malicious attacks applying the consistency of measure and computing; meanwhile all the nodes are involved in the activation without a central node. The performance of the algorithm is studied, and the experimental results show that DPC still has very high efficiency and good robustness in noisy conditions with a number of false nodes.%在资源受限的无线传感器网络中,如何安全、有效地获取节点位置信息是一个极具挑战性的问题,通过对多种安全定位算法分析,提出了一种分散式的基于RSSI测距的DPC安全定位算法,算法应用测量一致性以及测量与计算一致性原理检测并滤除多种恶意攻击生成的虚节点,而且算法没有设计中心节点,所有的正常节点都参与安全定位算法,对算法性能的讨论以及实验结果表明,在噪声环境和虚节点较多的情况下,DPC算法仍然有很高的效率,并能应对多种恶意攻击.
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