Using time-of-flight for WLAN localization: feasibility study

K. Kavitha Muthukrishnan, G.T. Koprinkov, Nirvana Meratnia, M.E.M. Lijding

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    Abstract

    Although signal strength based techniques are widely employed for WLAN localization, they generally suffer from providing highly accurate location information. In this paper, we first present the general shortcomings of the signal strength based approaches used for WLANbased localization and then state reasons why time-of-flight could be an attractive alternative. We subsequently analyze the feasibility of using time-of-flight technique for WLAN localization by synchronizing the clock using Network Time Protocol (NTP) as well as measuring the time at (i) network layer level, (ii) data link layer level, and (iii) firmware level. We conclude that at present using TOF is not a feasible approach because of the limitation of current hardware and protocols.
    Original languageUndefined
    Place of PublicationEnschede
    PublisherCentrum voor Telematica en Informatie Technologie
    Number of pages6
    Publication statusPublished - Jun 2006

    Publication series

    NameCTIT Technical Report Series
    PublisherCentre for Telematics and Information Technology, University of Twente
    No.06-28
    ISSN (Print)1381-3625

    Keywords

    • METIS-237394
    • IR-65605
    • EWI-2733
    • CAES-PS: Pervasive Systems

    Cite this

    Kavitha Muthukrishnan, K., Koprinkov, G. T., Meratnia, N., & Lijding, M. E. M. (2006). Using time-of-flight for WLAN localization: feasibility study. (CTIT Technical Report Series; No. 06-28). Enschede: Centrum voor Telematica en Informatie Technologie.