Improvement based on DV-Hop localization algorithm of wireless sensor network

In view of the error problem resulting from the approximate calculation when there is only a hop distance between anchor node and location node in the DV-Hop algorithm of wireless sensor network, this article introduces the RSSI ranging technology on the basis of original algorithm Using RSSI ranging technology, we can know whether the anchor node is only a hop away from the location node, and then we can decide whether the method of DV-Hop algorithm will be used to approximate the distance between them Simulation results show that this algorithm can effectively improve the error problems of calculating the hop distance between the anchor node and undetermined location node and also increase the positioning accuracy.