A Weighted Centroid Localization Algorithm Based on DV-Hop for Wireless Sensor Network

Localization is an important problem in wireless sensor networks (WSNs), since an event information with little node location information is meaningless in practical application. The well known localization algorithms DV-hop and centroid location algorithm can be simply implemented in real WSNs. In this paper, we will analyze the drawbacks of these two algorithms and propose a new weighted centroid localization algorithm based on DV-Hop. The proposed algorithm uses weight of anchors to improve localization accuracy. The simulation results show that the localization error of the weighted centroid localization algorithm is smaller than DV-Hop and centroid localization algorithm.