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AT-Dist: A Distributed Method for Localization with High Accuracy in Sensor Networks

Abstract : Many sensor network applications are based on the knowledge of sensor locations. A priori, some sensors know their position (via GPS). The objective of this paper is to allow positioning of remaining sensors with high accuracy. Existing technologies (e.g. ToA - Time of Arival) allow sensors to calculate ranges with their neighbor nodes. A new and original range-based distributed technique, called AT-Dist, is presented. It uses two important properties: first, it allows to locate sensor nodes while giving them the accuracy of their position. Thus, a sensor node can deduce if its estimated position is close to its real position and contribute to the positioning of others nodes. Second, AT-Dist manages introduction of measure errors which is the main drawback of range-based methods. As a result, AT-Dist locates with an exact or accuracy position many sensors. Simulations show the efficiency of our method in comparison to others.
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Contributor : Clément Saad Connect in order to contact the contributor
Submitted on : Friday, April 4, 2008 - 11:53:10 AM
Last modification on : Friday, October 22, 2021 - 3:07:18 PM
Long-term archiving on: : Friday, September 28, 2012 - 12:16:12 PM



  • HAL Id : lirmm-00270283, version 1


Clément Saad, Abderrahim Benslimane, Jean-Claude König. AT-Dist: A Distributed Method for Localization with High Accuracy in Sensor Networks. Studia Informatica Universalis, Hermann, 2008, Special Issue on "Wireless Ad Hoc and Sensor Networks", 6 (1), pp.14-39. ⟨lirmm-00270283⟩



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