期刊名称:Journal of Theoretical and Applied Information Technology
印刷版ISSN:1992-8645
电子版ISSN:1817-3195
出版年度:2013
卷号:50
期号:2
出版社:Journal of Theoretical and Applied
摘要:In this paper, we made comprehensive comparisons of three localization algorithms in wireless sensor network (WSN): A localization algorithm based on virtual central node (VCN), an improved 3D node localization algorithm based on virtual central node (IVCN) and an iterative calculation of secondary grid division (ICSGD) localization scheme. VCN and IVCN algorithms are both adapted to the wireless sensor network (WSN) that anchor nodes present an uniform distribution in three dimensional sensor spaces. During the localization process, by deducing a 3D special node, which is called the virtual central node, unknown nodes can compute their own positions automatically. Iterative calculation of secondary grid division (ICSGD) localization scheme could solve the inconsistency between calculation amount and location accuracy. The performance of the localization scheme was evaluated in a series of simulations performed using MATLAB. The simulation results demonstrated that the three schemes outperform in terms of higher location accuracy, and lower location amount.