避免非视距影响的蒙特卡罗移动节点定位方法简

Monte Carlo mobile node localization for NLOS environment

Enhanced Monte Carlo Boxed (EMCB), based on the broadcasting messages of one-hop neighbor nodes, is proposed in a mobile wireless sensor network for NLOS environment. The utilization efficiency of nodes is improved in the way of message flooding. The located nodes are used as the virtual anchor nodes in order to improve the location precision in the network with few anchors, optimizing the sample boxes of the neighbor nodes. Besides, both the theoretical limit of connectivity and the previous location information are used to enhance the filtering performance. Taking advantage of the one-hop messages, all the nodes are located layer-by-layer. Finally, the results of simulation show that the location precision is improved compared with the traditional algorithms in any situation. Especially, a good performance is achieved with fewer anchor nodes.