Simulation or measurement: the effect of radio map creation on indoor WLAN-based localisation accuracy

T.P. Deasy, William Scanlon

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Indoor wireless network based client localisation requires the use of a radio map to relate received signal strength to specific locations. However, signal strength measurements are time consuming, expensive and usually require unrestricted access to all parts of the building concerned. An obvious option for circumventing this difficulty is to estimate the radio map using a propagation model. This paper compares the effect of measured and simulated radio maps on the accuracy of two different methods of wireless network based localisation. The results presented indicate that, although the propagation model used underestimated the signal strength by up to 15 dB at certain locations, there was not a signigicant reduction in localisation performance. In general, the difference in performance between the simulated and measured radio maps was around a 30 % increase in rms error
Original languageEnglish
Pages (from-to)563-573
Number of pages11
JournalWireless Personal Communications
Volume42 (4)
Issue number4
DOIs
Publication statusPublished - Sep 2007

ASJC Scopus subject areas

  • Computer Networks and Communications

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