Virtual calibration for RSSI-based indoor localization with IEEE 802.15.4

Authors:
Paolo Barsocchi;Stefano Lenzi;Stefano Chessa;Gaetano Giunta
Affiliations:
ISTI-CNR, Pisa, Italy;ISTI-CNR, Pisa, Italy;ISTI-CNR, Pisa, Italy and omputer Science Department, University of Pisa, Pisa, Italy;ISTI-CNR, Pisa, Italy and Department of Applied Electronics, University of Roma Tre, Rome, Italy
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

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Abstract

Localization systems based on Received Signal Strength Indicator (RSSI) exploit fingerprinting (based on extensive signal strength measurements) to calibrate the system parameters. This procedure is very expensive in terms of time as it relies on human operators. In this paper we propose a virtual calibration procedure which only exploits the measurements of the RSSI between pairs of anchors. In particular, we propose two procedures for virtual calibration and we evaluate their performance with respect to an ad-hoc calibration campaign by performing measures in an indoor environment with an IEEE 802.15.4 sensor network.