QID : Robust Mobile Device Recognition via a Multi-Coil Qi-Wireless Charging System

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

2 Scopus Citations
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Author(s)

  • Deliang YANG
  • Guoliang XING
  • Jun HUANG
  • Xiangmao CHANG
  • Xiaofan JIANG

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number13
Journal / PublicationACM Transactions on Internet of Things
Volume3
Issue number2
Online published17 Mar 2022
Publication statusPublished - Mar 2022

Abstract

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.

Research Area(s)

  • Device recognition, Qi wireless charging, Real-time processing

Bibliographic Note

Full text of this publication does not contain sufficient affiliation information. With consent from the author(s) concerned, the Research Unit(s) information for this record is based on the existing academic department affiliation of the author(s).

Citation Format(s)

QID: Robust Mobile Device Recognition via a Multi-Coil Qi-Wireless Charging System. / YANG, Deliang; XING, Guoliang; HUANG, Jun et al.
In: ACM Transactions on Internet of Things, Vol. 3, No. 2, 13, 03.2022.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review