期刊名称：International Journal of Information and Communication Technology Research
电子版ISSN：2223-4985
出版年度：2016
卷号：6
期号：1
出版社：IRPN Publishers
摘要：This paper treats the problem of centralized iterative gradient descent (GD) localization in 3-D wireless sensor networks (WSN) using the time-of-arrival- (TOA-) based distance measurements between the target node and a number of anchor nodes. For localization in 3-D space, at least four anchors are needed. Two types of adaptive step-sizes, as well as fixed step size, are used for iterative GD and a comparison is made under link failure and measurement noise conditions.
关键词：centralized localization; gradient descent; adaptive step-size; link failure; measurement noise.
