Bringing wifi localization to any wifi devices

Open Webpage

Tianxiang Li, Haofan Lu, Reza Rezvani, Ali Abedi, Omid Abari

Published: 01 Jan 2022, Last Modified: 06 Nov 2025HotNets 2022EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Recent years have seen significant advances in WiFi Localization. However, existing systems require either multiple access points to cooperate with each other or a single access point to have multiple antennas and transceiver chains. Therefore, they cannot be integrated into most IoT WiFi chipsets which have only a single transceiver chain. This paper presents WiSight, a novel approach to bringing WiFi localization to any WiFi devices, especially those with a single RF chain. We propose a WiFi antenna design and use the inherent properties of the 802.11 protocol to measure Angle-of-Arrival (AoA) and Time-of-Flight (ToF) using a single transceiver chain. Our proof-of-concept simulation and real world experiments promise the feasibility of this approach.