Home // International Journal On Advances in Systems and Measurements, volume 2, numbers 2 and 3, 2009 // View article

Localization in WiMAX Networks Depending on The Available RSS-based Measurements

Authors:
Mussa Bshara
Leo Van Biesen

Keywords: Fingerprinting, GPS, GSM, location-based services, localization, positioning, positioning accuracy, power maps , received signal strength, SCORE, WiMAX

Abstract:
Recently, localization in wireless networks has gained a lot of interest; especially after some of the most interesting positioning application areas have emerged in wireless communications. The most important are the Federal Communications Commission (FCC) and the European Recommendation E112, both of which require that wireless providers should be able to locate within tens of meters users of emergency calls. In this paper, fingerprinting-based localization depending on the available RSS-based measurements has been addressed in WiMAX networks. Fingerprinting is a good way to overcome signal propagation peculiarities caused by the propagation environment. And using the available RSS-based measurements is of great interest because of their availability during the normal operation of the standard modems, and the simplicity of obtaining them. The obtained results show that using the available RSSbased measurements to locate users in WiMAX networks is feasible and provides the required positioning accuracy for most of location-based services (LBS), if fingerprinting-based approaches are used to obtain localization. The available RSSbased measurement in the current WiMAX modems is called SCORE. The term SCORE is used by modem manufacturer to indicate the quality of the connection between the base station (BS) and the subscriber station (SS). However, using the actual received signal strength (RSS) values gives higher accuracy than using SCORE values, but obtaining them is more difficult and not feasible using the current modems

Pages: 214 to 223

Copyright: Copyright (c) to authors, 2009. Used with permission.

Publication date: December 1, 2009

Published in: journal

ISSN: 1942-261x