Device-Free Indoor Location Estimation System Using Commodity Wireless LANs

Yuan Zhou; Minseok Kim; Hideaki Momose; Satoru Yasukawa

doi:10.20944/preprints202103.0434.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 16 March 2021 / Approved: 17 March 2021 / Online: 17 March 2021 (10:57:38 CET)

In recent years, since the propagation channel characteristics have been effectively used for applications such as motion sensing, position detection, etc. A great deal of attention is attracted to channel sounding methods easy to utilize using low-cost devices. This paper presents a device-free indoor location estimation method using spatio-temporal features of radio propagation channels using the 2.4-GHz band 3-by-3 MIMO channel sounder developed using commodity wireless LANs. The measurement results demonstrated a reasonable performance of the proposed method with small number of antennas.

WiFi sounder; CSI; MIMO; indoor location estimation; array signal processing; machine learning; SVM

Engineering, Automotive Engineering

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Device-Free Indoor Location Estimation System Using Commodity Wireless LANs

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