TWINS: Time-of-flight based Wireless Indoor Navigation System
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We introduce TWINS, Time-of-flight based Wireless Indoor Navigation System, that estimates the position of commercial off-the-shelf devices such as smartphones, tablets and laptops using pure commercial off-the-shelf WiFi Access Points in near real-time. TWINS is the result of several years of effort put into research and development. TWINS does not require any inertial sensors on the mobile devices, and it is based on a system that has participated in the 2014 and 2016 MSR Localization Competition editions.