Zengshan Tian1, Weiqin Yang1, Yue Jin1, Liangbo Xie1, *, Zhengwen Huang2
CMC-Computers, Materials & Continua, Vol.62, No.2, pp. 861-876, 2020, DOI:10.32604/cmc.2020.07297
Abstract With the popularity of indoor wireless network, device-free indoor
localization has attracted more and more attention. Unlike device-based localization
where the target is required to carry an active transmitter, their frequent signal scanning
consumes a large amount of energy, which is inconvenient for devices with limited
energy. In this work, we propose the MFPL, device-free localization (DFL) system
based on WiFi distance measurement. First, we combine multi-subcarrier characteristic
of Channel State Information (CSI) with classical Fresnel reflection model to get the
linear relationship between the change of the length of reflection path and the
subcarrier… More >
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