期刊名称：International Journal of Grid and Distributed Computing
印刷版ISSN：2005-4262
出版年度：2016
卷号：9
期号：8
页码：159-170
出版社：SERSC
摘要：When wireless sensor networks using spatial random deployment, disturbed three-dimensional topography of factors can lead to the generation of the coverage hole. In order to effectively detect the coverage holes in the target area, in this paper, we propose a method for detecting space coverage holes in sensor networks based on three-dimensional terrain correction. Firstly using Delaunay triangulation subdivides network coverage and calculates the Delaunay triangle circumscribed circle, secondly using the cluster grouping method to build the cover blind area boundary. Thirdly according to the principles of the terrain correction, we calculate the actual detection radius, after terrain correction ultimately, obtain minimum boundaries of coverage holes. Simulation results 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.
