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

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

Research output: Book/ReportReportProfessional

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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.
Kavitha Muthukrishnan, K. ; Koprinkov, G.T. ; Meratnia, Nirvana ; Lijding, M.E.M. / Using time-of-flight for WLAN localization: feasibility study. Enschede : Centrum voor Telematica en Informatie Technologie, 2006. 6 p. (CTIT Technical Report Series; 06-28).
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Kavitha Muthukrishnan, K, Koprinkov, GT, Meratnia, N & Lijding, MEM 2006, Using time-of-flight for WLAN localization: feasibility study. CTIT Technical Report Series, no. 06-28, Centrum voor Telematica en Informatie Technologie, Enschede.

Using time-of-flight for WLAN localization: feasibility study. / Kavitha Muthukrishnan, K.; Koprinkov, G.T.; Meratnia, Nirvana; Lijding, M.E.M.

Enschede : Centrum voor Telematica en Informatie Technologie, 2006. 6 p. (CTIT Technical Report Series; No. 06-28).

Research output: Book/ReportReportProfessional

TY - BOOK

T1 - Using time-of-flight for WLAN localization: feasibility study

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AU - Koprinkov, G.T.

AU - Meratnia, Nirvana

AU - Lijding, M.E.M.

PY - 2006/6

Y1 - 2006/6

N2 - 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.

AB - 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.

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KW - IR-65605

KW - EWI-2733

KW - CAES-PS: Pervasive Systems

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Kavitha Muthukrishnan K, Koprinkov GT, Meratnia N, Lijding MEM. Using time-of-flight for WLAN localization: feasibility study. Enschede: Centrum voor Telematica en Informatie Technologie, 2006. 6 p. (CTIT Technical Report Series; 06-28).