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

Jul 23, 2023 •818 likes •1.01k views

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

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 – More computational resources at hand – Unlimited grid power, not battery – More antennas 4
State of the art: Line-of-sight shadowing Wireless transceivers 5
State of the art: Line-of-sight shadowing 6
State of the art: Line-of-sight shadowing 7
State of the art: Line-of-sight shadowing 8
State of the art: Line-of-sight shadowing 9
10
Source: fmscan.org
Ambient radio sensing 12
Proof of the concept (video)
Sample dataset 14
Localization performance • 4 days, 2 datasets daily • 85% same-day accuracy • 65% three days later (still better than 20% of random guess) 15
The more stations – the better 1 Localization accuracy 0.8 0.6 0.4 0.2 0 5 6 7 8 9 10 11 Number of channels 16
Summary • Device-free localization with ambient radio is feasible • Frequency diversity is essential 17
Thank you!

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