Stepwise refinement algorithms for prediction of user location using receive signal strength indication in infrastructure WLANs

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Abstract

This paper examines several algorithms for improving the estimation of user location using received strength signal indication (RSSI) values in a standard infrastructure wireless local area network (WLAN). The basic method of estimating a mobile user's position is the variation of RSSl with transmitter/receiver separation. Unfortunately, due to both external interference and the inherent uncertainty present in RSSI measurements, this approach leads to unacceptable errors in the position estimates. In order to improve the overall accuracy of the system, several refinement algorithms have been examined and simulated to investigate their effect on the system accuracy, with the results presented herein.

Original languageEnglish
Title of host publication2003 High Frequency Postgraduate Student Colloquium
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages116-119
Number of pages4
ISBN (Electronic)0780381238
DOIs
Publication statusPublished - 2003
Externally publishedYes
Event2003 High Frequency Postgraduate Student Colloquium - Belfast, Ireland
Duration: 8 Sep 20039 Sep 2003

Publication series

NameIEEE High Frequency Postgraduate Student Colloquium
Volume2003-January
ISSN (Print)1546-6523

Conference

Conference2003 High Frequency Postgraduate Student Colloquium
Country/TerritoryIreland
CityBelfast
Period8/09/039/09/03

Keywords

  • Attenuation
  • Computational modeling
  • Computer simulation
  • Measurement uncertainty
  • Mobile computing
  • Prediction algorithms
  • Radar tracking
  • UHF measurements
  • Wide area networks
  • Wireless LAN

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