Leveraging Electromagnetic Polarization in a Two-Antenna Whiteboard in the Air

Longfei Shangguan, Kyle Jamieson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

Wireless sensing, tracking, and drawing technologies are enabling exciting new possibilities for human-machine interaction. They primarily rely on measurements of backscattered phase, amplitude, and Doppler signal distortions, and often require many measurements of these quantities-in time, or from multiple antennas. In this paper we present the design and implementation of PolarDraw, the first whiteboard in the air that sends differentially-polarized wireless signals to glean more precise tracking information from a tag. Leveraging information received from each polarization angle, our novel algorithms infer orientation and position of an RFID-tagged pen using just two antennas, when the user writes in the air or on a physical whiteboard. An experimental comparison in a cluttered indoor office environment compares two-antenna PolarDraw with recent state-of-theart object tracking systems that use double the number of antennas, demonstrating comparable centimeter-level tracking accuracy and character recognition rates (88-94%), thus making a case for the use of polarization in many other tracking systems.

Original languageEnglish (US)
Title of host publicationCoNEXT 2016 - Proceedings of the 12th International Conference on Emerging Networking EXperiments and Technologies
PublisherAssociation for Computing Machinery, Inc
Pages443-456
Number of pages14
ISBN (Electronic)9781450342926
DOIs
StatePublished - Dec 6 2016
Event12th ACM Conference on Emerging Networking Experiments and Technologies, ACM CoNEXT 2016 - Irvine, United States
Duration: Dec 12 2016Dec 15 2016

Publication series

NameCoNEXT 2016 - Proceedings of the 12th International Conference on Emerging Networking EXperiments and Technologies

Other

Other12th ACM Conference on Emerging Networking Experiments and Technologies, ACM CoNEXT 2016
CountryUnited States
CityIrvine
Period12/12/1612/15/16

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Keywords

  • Electromagnetic polarization
  • RFID
  • Tracking

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  • Cite this

    Shangguan, L., & Jamieson, K. (2016). Leveraging Electromagnetic Polarization in a Two-Antenna Whiteboard in the Air. In CoNEXT 2016 - Proceedings of the 12th International Conference on Emerging Networking EXperiments and Technologies (pp. 443-456). (CoNEXT 2016 - Proceedings of the 12th International Conference on Emerging Networking EXperiments and Technologies). Association for Computing Machinery, Inc. https://doi.org/10.1145/2999572.2999601