文章基本信息

标题：DV-Hop Localization Algorithm Based on RSSI Correction
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作者：Wanli Zhang ; Xiaoying Yang ; Qixiang Song 等
期刊名称：Journal of Software Engineering
印刷版ISSN：1819-4311
电子版ISSN：2152-0941
出版年度：2015
卷号：9
期号：1
页码：188-194
DOI：10.3923/jse.2015.188.194
出版社：Academic Journals Inc., USA
摘要：The traditional DV-Hop localization algorithm does not take into account the impact of differences between neighbouring nodes in calculating the average distance per hop distance, resulting in reduced positioning accuracy. To solve this problem, we designed a DV-Hop localization algorithm based on RSSI correction. According to the RSSI dissipation model principle, hops are weighted by using RSSI signal strength values. Our proposed algorithm performed as follows. First, it calculates the average distance per hop by using the hops which have been weighted. Second, it calculates the whole network average distance per hop. Finally, it calculates the coordinates of the unknown node with a total least squares method. Simulation results show that the proposed algorithm effectively improves the positioning accuracy without increasing hardware devices.