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In this paper we propose a novel distributive algorithm for WLAN localization in which some nodes know their positions and others determine their position by measuring distances to these known nodes and neighboring nodes. Localization is a process by which physical positions of the nodes are determined. Localization where positions are reconstructed given measured distances is a non-convex optimization...
The problem of positioning a target node is studied for wireless sensor networks with cooperative active and passive sensors. Two-way time-of-arrival and time-difference-of-arrival measurements made by both active and passive nodes are used to estimate the position of the target node. A maximum likelihood estimator (MLE) can be employed to solve the problem. Due to the nonlinear nature of the cost...
Localization of sensor nodes is a fundamental and important problem in wireless sensor networks. In this correspondence, a recursive distributed positioning algorithm is devised with the use of range measurements. Computer simulations are included to contrast the performance of the proposed approach with the conventional semi-definite relaxation positioning method as well as Crameacuter-Rao lower...
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