2018/12/07 by Yaxiong Xie, Jie Xiong, Xie, Yaxiong +5 · 10 citations
Computer Science · Engineering · #FOS: Computer and information sciences #Indoor and Outdoor Localization Technologies #Millimeter-Wave Propagation and Modeling #Networking and Internet Architecture (cs.NI) #Speech and Audio Processing
paper · pdf · doi:10.48550/arxiv.1812.03103
openalex publication_date 2018/12/07 · openalex created_date 2018/12/22 · openalex updated_date 2026/07/28
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.