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New Geometric Geolocalization Method for Tracking Patients in Medical Environments

Authors:
Afef Ghabri
Monia Bellalouna
Leila Horchani

Keywords: Geolocalization; wireless sensor network; precision; Distance Vector–Hop; medical environments.

Abstract:
The geolocalization is a technique which assures the determination of the geographical positions of individuals through their mobile equipments or elements equipped with a specific device. It has received research interest due to the success of the emerging wireless sensor network technology. To achieve some applications, such as environmental monitoring, military surveillance and disaster relief, node localization is fundamental and essential. Moreover, the availability of location information can enable a myriad of applications such as, intrusion detection, inventory management, road traffic monitoring, reconnaissance, health monitoring and surveillance, in order to insure an intervention in the suitable time and place. There are different methods of geolocalization able of resolving this problem. All these approaches are characterized by their own disadvantages and advantages, making them adapted to various applications. So, we always try to improve them by proposing a new approach with the aim of having a better precision and a more accurate positioning. This paper presents a new geometric method which can improve the poor locating performance of the typical Distance Vector-Hop (DV-Hop) algorithm, without increasing the hardware cost for sensors. We propose this approach to ensure the monitoring and the positioning of patients in medical environments for indoor use and to achieve a good compromise between positioning accuracy, computation complexity and energy cost. The influences of anchors on the algorithm and simulation results are also explored in this paper.

Pages: 65 to 71

Copyright: Copyright (c) IARIA, 2015

Publication date: July 19, 2015

Published in: conference

ISSN: 2326-9324

ISBN: 978-1-61208-421-3

Location: Nice, France

Dates: from July 19, 2015 to July 24, 2015