A Position-Correction Algorithm Based on Hop Distance of DV-Hop

A classical range-free localization algorithm for Wireless sensor networks, which called DV-Hop Algorithm, is widely used in many fields. It has the defect of low location accuracy. In this article, we proposed a position-correction algorithm based on hop distance of DV-Hop, when the primary location finished, the propose algorithm can make a correction for the previous locating position. Simulation results showed that the proposed algorithm has better performance than DV-Hop algorithm b y less position error and higher location accuracy.