A Novel Approach to Indoor RSSI Localization by Automatic Calibration of the Wireless Propagation Model

We propose a novel localization algorithm of mobile sensors based on wireless sensor networks providing RSSI measurements between the mobile and the fixed sensors (anchors) in the network. The algorithm selects and weights the RSSI measurements according to their strength, and it uses a propagation...

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Bibliographic Details
Published inVTC Spring 2009 - IEEE 69th Vehicular Technology Conference pp. 1 - 5
Main Authors Barsocchi, P., Lenzi, S., Chessa, S., Giunta, G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2009
Subjects
Calibration
Contracts
Fading
Fingerprint recognition
Global Positioning System
Hardware
Position measurement
Time measurement
Wireless sensor networks
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Summary:We propose a novel localization algorithm of mobile sensors based on wireless sensor networks providing RSSI measurements between the mobile and the fixed sensors (anchors) in the network. The algorithm selects and weights the RSSI measurements according to their strength, and it uses a propagation model to transform RSSI measurements into distances, in order to estimate the position of the mobile. The algorithm also uses a virtual calibration method of the propagation model that does not require human intervention. By an experimental setup we show that the localization algorithm increases the performance with respect to the commonly used least mean square algorithm showing also how to achieve a wished accuracy increasing the anchor density.
ISSN:1550-2252
DOI:10.1109/VETECS.2009.5073315