Precision optimization of node localization centroid algorithm for WSN

Wenxin Li

COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(12A) 197-201

School of Electrical Engineering &Mechano-Electric Engineering, Xuchang University, Xuchang, 461000, Henan, China

Aiming at the problems that the traditional centroid algorithm in WSN node positioning precision is not high and the error is very large, this paper proposed a adaptive centroid algorithm based on weighted factor, first of all, determined the weighting factor according to the influence of different beacon node to the unknown node, with weights to reflect the impact of each beacon nodes for centroid position and then all the beacon nodes in the network were conducted with adaptive optimization, translated adaptive optimization of coordinate error into the distance error.The experimental simulation results showed that the proposed adaptive centroid algorithm based on weighted factor was effective in reducing the error of traditional centroid algorithm in wireless sensor network node location, the location precision was improved.