Conference Proceeding Article
Indoor localization of mobile devices and tags has received much attention recently, with encouraging fine-grained localization results available with enough line-of-sight coverage and enough hardware infrastructure. Synchronicity is a location system that aims to push the envelope of highly-accurate localization systems further in both dimensions, requiring less line-of-sight and less infrastructure. With Distributed MIMO network of wireless LAN access points (APs) as a starting point, we leverage the time synchronization that such a network affords to localize with time-difference-of-arrival information at the APs. We contribute novel super-resolution signal processing algorithms and reflection path elimination schemes, yielding superior results even in non-line-of-sight scenarios (with one to two walls separating client and APs). We implement and briefly evaluate Synchronicity on the WARP hardware radio platform using standard 20~MHz wireless LAN channels.
tdoa, synchronization, distributed mimo, location tracking
Software Engineering | Systems Architecture
Software and Cyber-Physical Systems
HotWireless '14: Proceedings of the 1st ACM Workshop on Hot Topics in Wireless: September 11, 2014, Maui, Hawaii
City or Country
XIONG, Jie; JAMIESON, Kyle; and SUNDARESAN, Karthikeyan.
Synchronicity: Pushing the envelope of fine-grained localization with distributed MIMO. (2014). HotWireless '14: Proceedings of the 1st ACM Workshop on Hot Topics in Wireless: September 11, 2014, Maui, Hawaii. 43-48. Research Collection School Of Information Systems.
Available at: http://ink.library.smu.edu.sg/sis_research/2702
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