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 de-tect and filter out the false nodes that are generated by malicious attacks applying the consistency of measure and com-puting;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.