Using Ambient Radio Signals Andrei Popleteev SnT, University of - - PowerPoint PPT Presentation

using ambient radio signals
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Using Ambient Radio Signals Andrei Popleteev SnT, University of - - PowerPoint PPT Presentation

Device-Free Indoor Localization Using Ambient Radio Signals Andrei Popleteev SnT, University of Luxembourg 2 Image: Particle physics education CD-ROM, 1999 CERN. Device-free sensing User freedom Nothing to carry Research freedom


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Device-Free Indoor Localization Using Ambient Radio Signals

Andrei Popleteev

SnT, University of Luxembourg

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Image: Particle physics education CD-ROM, 1999 CERN.

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Device-free sensing

  • User freedom

– Nothing to carry

  • Research freedom

– More computational resources at hand – Unlimited grid power, not battery – More antennas

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State of the art: Line-of-sight shadowing

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Wireless transceivers

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State of the art: Line-of-sight shadowing

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State of the art: Line-of-sight shadowing

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State of the art: Line-of-sight shadowing

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State of the art: Line-of-sight shadowing

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Source: fmscan.org

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Ambient radio sensing

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Proof of the concept (video)

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Sample dataset

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Localization performance

  • 4 days, 2 datasets daily
  • 85% same-day accuracy
  • 65% three days later

(still better than 20% of random guess)

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The more stations – the better

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0.2 0.4 0.6 0.8 1 5 6 7 8 9 10 11

Localization accuracy Number of channels

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Summary

  • Device-free localization with ambient

radio is feasible

  • Frequency diversity is essential

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Thank you!