WSN Three-dimensional Localization Method Based on Midperpendicular Plane Segmentation

Aiming at the problem that location precision is not high in Wireless Sensor Network(WSN),this paper presents a three-dimensional localization method based on midperpendicular plane segmentation.Segment area in which the node to be localized is segmented into some cubes.It uses midperpendicular plane to eliminate some cubes which are not existing awaiting localization nodes,combines communication radius of anchor nodes to shrink the left area,and gets its centroid of the area as final result.Experimental result shows that the number of anchor nodes is greater than 12,and the error rate maintains at 0.02.