关键词: 无线传感器网络, 节点定位, 蝙蝠算法, 最小二乘算法

Abstract: Node localization is a key technology of wireless sensor network and least square algorithm has low localization precision, in order to improve the localization precision of wireless sensor network node, a novel node localization method of wireless sensor network is proposed based on bat algorithm. Firstly, the node localization problem is transformed into a constrained optimization problem, and then the problem is solved by bat algorithm, finally, the simulation experiment is carried out to test the performance on Matlab 2012. The results show that the proposed method has improved the localization precision and localization efficiency of wireless sensor network node compared with other node localization methods.

Key words: wireless sensor networks, node localization, bat algorithm, least squares algorithm