RCDV-Hop Localization Algorithm for WSN

In this paper, an improved DV-Hop localization mechanism named RCDV-Hop algorithm based on Received Signal Strength Indicator (RSSI) and the correction value is proposed, which includes two parts: RDV-Hop algorithm and CDV-Hop algorithm. In which, RDV-Hop algorithm improves the method for calculating the average per-hop distance and CDV-Hop algorithm substitutes the distance from unknown node to its one-hop neighbor anchor node with the correction value. From the comparison with DV-Hop algorithm respectively, MATLAB simulation results show that this combinative algorithm (RCDV-Hop algorithm) can reduce the error of calculating the distance between anchor node and unknown node and enhance the accuracy of positioning information of sensor nodes more effectively in contrast with other algorithms.