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MD-Track: Leveraging multi-dimensionality in passive indoor Wi-Fi tracking

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Wi-Fi localization and tracking face accuracy limitations dictated by antenna count (for angle-of-arrival methods) and frequency bandwidth (for time-of-arrival methods). This paper presents mD-Track, a device-free Wi-Fi tracking system capable of jointly fusing information from as many dimensions as possible to overcome the resolution limit of each individual dimension. Through a novel path separation algorithm, mD-Track can resolve multipath at a much fner-grained resolution, isolating signals refected of targets of interest. mD-Track can localize human passively at a high accuracy with just a single Wi-Fi transceiver pair. mD-Track also introduces novel methods to greatly streamline its estimation algorithms, achieving real-time operation. We implement mD-Track on both WARP and cheap of-the-shelf commodity Wi-Fi hardware, and evaluate its performance in diferent indoor environments.

Original languageEnglish (US)
Title of host publicationMobiCom 2019 - Proceedings of the 25th Annual International Conference on Mobile Computing and Networking
PublisherAssociation for Computing Machinery
ISBN (Electronic)9781450361699
DOIs
StatePublished - Aug 7 2019
Event25th Annual International Conference on Mobile Computing and Networking, MobiCom 2019 - Los Cabos, Mexico
Duration: Oct 21 2019 → Oct 25 2019

Publication series

NameProceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM

Conference

Conference25th Annual International Conference on Mobile Computing and Networking, MobiCom 2019
Country/TerritoryMexico
CityLos Cabos
Period10/21/19 → 10/25/19

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

Keywords

  • AoA
  • Diversity
  • Doppler
  • Localization
  • Multi-dimensional Estimation
  • Super-resolution Algorithm
  • ToF

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