文章基本信息

标题：Localization in WSN Using Modified Trilateration Based on Fuzzy Optimization
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作者：Jyoti ; Rekha Yadav ; Neha Singh 等
期刊名称：International Journal of Advanced Research In Computer Science and Software Engineering
印刷版ISSN：2277-6451
电子版ISSN：2277-128X
出版年度：2013
卷号：3
期号：7
出版社：S.S. Mishra
摘要：Localization is a fundamental problem in Wireless Sensor Networks (WSNs) and is more challenging in the mobile sensor network than in the static sensor network. In a system formed by hundreds of sensors deployed in a large area, it is important to know the position of each sensor. This information can be calculated using either of the several localization algorithms. This paper proposed a novel fuzzy based algorithm to solve the trilateration problem( i.e. when the node is in the overlapping region of circles) in WSNs, with the objective of estimating the location of sensors according to the knowledge of the position of some reference nodes. This algorithm, called modified trilateration (Using fuzzy optimization and centroid technique) is executed along a wireless sensor network formed by hundreds of nodes. The evaluation of Modified Trilateration is led by simulation tests. The result obtained shows that proposed algorithm is a promising method that can easily solve the problem of knowing where the sensors are located with less error as compared to simple weighted centroid technique
关键词：GPS; localisation; Wireless sensor network (WSN); centroid; fuzzy logic; received signal strength ;indicator (RSSI).