Influence of predicted and measured fingerprint on the accuracy of RSSI-based indoor location systems

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Abstract

WLAN indoor location that is based on received signal strength indication (RSSI) technique needs extensive calibration to build a signal fingerprint. Re-calibration is also needed if there is a major change in the propagation environment. The use of propagation models to predict signal fingerprint becomes an interesting preposition. This paper will investigate the influence of predicted fingerprint on the accuracy of indoor location. They include empirical propagation models (i.e. one-slope model and multiwall model) and a semi-deterministic model. A framework for indoor location with the Nearest-Neighbour and Particle Filter are developed to evaluate predicted and measured fingerprints. In order to take advantage of environment description, a map-filtering technique is also elaborated.

Original languageEnglish
Title of host publication4th Workshop on Positioning, Navigation and Communication 2007, WPNC'07 - Workshop Proceedings
PublisherIEEE Computer Society
Pages145-151
Number of pages7
ISBN (Print)1424408717, 9781424408719
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event4th Workshop on Positioning, Navigation and Communication 2007, WPNC'07 - Hannover, Germany
Duration: 22 Mar 200722 Mar 2007

Publication series

Name4th Workshop on Positioning, Navigation and Communication 2007, WPNC'07 - Workshop Proceedings

Conference

Conference4th Workshop on Positioning, Navigation and Communication 2007, WPNC'07
Country/TerritoryGermany
CityHannover
Period22/03/0722/03/07

Keywords

  • Indoor location
  • Indoor propagation model
  • Particle filter
  • Predicted fingerprint

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