A node self localization algorithm for wireless sensor networks

For many applications of wireless sensor networks the node localization is the critical one. In this paper, a range-free node localization algorithm based on mobile anchor node is proposed. This algorithm is built on the basis of Monte Carlo Localization algorithm. It uses the information collected by nodes to speed up the sample selection and to improve the accuracy and efficiency of location. Simulation results show that the average localization accuracy in this algorithm can reach 0.2 communication radius, compared with other similar localization algorithm, it can significantly improve the accuracy of node localization.