HA-A2L: angle to landmark-based high accuracy localization method in sensor networks

Authors:
Mustapha Boushaba;Abdel Hafid;Abderrahim Benslimane
Affiliations:
Université de Montréal, Montréal, Canada;Université de Montréal, Montréal, Canada;Université d'Avignon, Avignon, France
Venue:
IWCMC '07 Proceedings of the 2007 international conference on Wireless communications and mobile computing
Year:
2007

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Abstract

In sensor networks, several applications such as habitat monitoring and moving objects tracking, require the knowledge of nodes positions. Position estimation most often includes errors due to the measurements of distance and incoming angles between neighbors. Erroneous positions are propagated from a node to other nodes exacerbating the degree of errors in the estimation of the positions of these nodes. In this paper, we propose a new localization method, called HA-A2L. Compared, via simulations, to previous methods, such as APS and A2L, HA-A2L considerably increases the number of located nodes with far better accuracy.