传感技术学报2016，Vol.29Issue(1)：109-115,7.DOI:10.3969/j.issn.1004-1699.2016.01.019
基于三维地形修正的无线传感器网络覆盖盲区检测
Detection of Coverage Hole in WSN Based on Three-Dimensional Terrain Correction
摘要
Abstract
Due to the characteristic of undulating terrain,it will produce the coverage holes after randomly deploy-ing sensor nodes under the three-dimensional terrain. In order to effectively detect the coverage holes,in this paper, we propose a detection method of coverage holes in wireless sensor networks(WSN)based on three-dimensional ter-rain correction. Through establishing the unit ball perception model,randomly deploying the sensor nodes,Delau-nay triangulation the sensor nodes. Calculating the circumcircle of the triangle,obtaining coverage holes boundaries based on boundary detection algorithm and eliminating false boundary node,then we obtain the improved boundary. We calculate the information of slope and aspect of sensor nodes. According to the principles of the terrain correc-tion,calculate the actual detection radius;Ultimately obtain a minimum boundary of coverage holes. Simulation re-sults show that the detection method can effectively detect coverage holes under the three-dimensional terrain. For the undulating obviously terrain,it also has some adaptability.关键词
覆盖盲区/三维地形修正/坡度和坡向/Delaunay三角剖分/外接圆Key words
coverage holes/three-dimensional terrain correction/slope and aspect/Delaunay triangulation/circum?circle分类
信息技术与安全科学引用本文复制引用
神显豪,李军,奈何..基于三维地形修正的无线传感器网络覆盖盲区检测[J].传感技术学报,2016,29(1):109-115,7.基金项目
国家自然科学基金项目(E050603) （E050603）
广西高等学校科研项目(YB2014157) （YB2014157）
广西自然科学基金项目(2015GXNSFBA139254) （2015GXNSFBA139254）
