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On-Line Training of the Path-Loss Model in Bayesian WLAN Indoor Positioning

Bruno, Luigi and Khider, Mohammed and Robertson, Patrick (2013) On-Line Training of the Path-Loss Model in Bayesian WLAN Indoor Positioning. In: 2013 International Conference on Indoor Positioning and Indoor Navigation. IPIN 2013, 28 - 31 Oct 2013, Montbeliard, France. (In Press)

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Abstract

Received signal strengths have been widely used in indoor positioning due to the massive presence of wireless local networks in buildings. To avoid long training phases theoretical propagation models such as the path-loss model can be used. The main issue is that the path-loss parameters, namely the transmitted power and the decay exponent, can assume a wide range of values, depending on devices, building structure and other environmental features. In this paper, we propose a Bayesian positioning algorithm based on the Rao-Blackwellized particle filter, where the system estimates the parameters of the path-loss model independently for each AP in addition to localizing the user. Both parameters are described by discrete variables and their probability distribution is estimated starting from a uniform prior. We validate the algorithm with simulations and two different experiments; finally, some remarks on complexity are also given.

Item URL in elib:https://elib.dlr.de/84397/
Document Type:Conference or Workshop Item (Speech)
Title:On-Line Training of the Path-Loss Model in Bayesian WLAN Indoor Positioning
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bruno, Luigiluigi.bruno (at) dlr.deUNSPECIFIED
Khider, Mohammedmohammed.khider (at) dlr.deUNSPECIFIED
Robertson, Patrickpatrick.robertson (at) dlr.deUNSPECIFIED
Date:October 2013
Journal or Publication Title:2013 International Conference on Indoor Positioning and Indoor Navigation
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:In Press
Keywords:Indoor Positioning, RBPF, indoor navigation, step measurements, RSS.
Event Title:IPIN 2013
Event Location:Montbeliard, France
Event Type:international Conference
Event Dates:28 - 31 Oct 2013
Organizer:Université de Franche-Comté - UFC
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
DLR - Research theme (Project):W - Vorhaben GNSS2/Neue Dienste und Produkte (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Communications Systems
Deposited By: Bruno, Dr Luigi
Deposited On:27 Jan 2014 16:14
Last Modified:31 Jul 2019 19:42

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