A weighted compensated localization algorithm of nodes in Wireless Sensor Networks

In order to effectively curb the effect of complex environment on the accuracy of position of nodes in Wireless Sensor Network, an anchor node weighted compensated localization algorithm is proposed, based on the trilateration localization algorithm and the centroid localization algorithm. By using the anchor node´s own locating capabilities as well as the weighted centroid localization algorithm, the proposed algorithm can obtain the locating error of the region nearby the anchor node. When calculating the coordinates of blind node in this region, the algorithm can compensate for this error, thereby enhancing the locating accuracy of blind nodes. Experiment results show that the average locating accuracy is about 2m. Without any need for extra hardware consumption, this algorithm is simple, effective and can be widely applied.