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Title: QID: Robust Mobile Device Recognition via a Multi-Coil Qi-Wireless Charging System
Recent years have witnessed the increasing penetration of wireless charging base stations in the workplace and public areas, such as airports and cafeterias. Such an emerging wireless charging infrastructure has presented opportunities for new indoor localization and identification services for mobile users. In this paper, we present QID, the first system that can identify a Qi-compliant mobile device during wireless charging in real-time. QID extracts features from the clock oscillator and control scheme of the power receiver and employs light-weight algorithms to classify the device. QID adopts a 2-dimensional motion unit to emulate a variety of multi-coil designs of Qi, which allows for fine-grained device fingerprinting. Our results show that QID achieves high recognition accuracy. With the prevalence of public wireless charging stations, our results also have important implications for mobile user privacy.  more » « less
Award ID(s):
1943396 1837022 1815274
PAR ID:
10327553
Author(s) / Creator(s):
; ; ; ;
Date Published:
Journal Name:
ACM Transactions on Internet of Things
Volume:
3
Issue:
2
ISSN:
2691-1914
Page Range / eLocation ID:
1 to 27
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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