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arXiv · 1812.03103

mD-Track: Leveraging Multi-Dimensionality in Passive Indoor Wi-Fi Tracking

Yaxiong Xie·Jie Xiong·Mo Li·Kyle Jamieson
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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 finer-grained resolution, isolating signals reflected off 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 off-the-shelf commodity Wi-Fi hardware and evaluate its performance in different indoor environments.

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Yaxiong Xie, Jie Xiong, Mo Li, Kyle Jamieson. 2018-12-07. mD-Track: Leveraging Multi-Dimensionality in Passive Indoor Wi-Fi Tracking. https://arxiv.org/abs/1812.03103

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