Presentation 2024-03-14
[Invited Talk (Young Researcher)] ToF-based Positioning Technique and Its Evaluation Using Real Wi-Fi Stations
Abudusaimi Abuduaini, Naoki Honma, Kentaro Murata, Takumi Shimofusa, Nobuyuki Shiraki, Shoichi Iizuka, Takeshi Nakayama,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This study investigates a living-body positioning technique that integrates Time-of-flight (ToF) and Direction of Departure (DoD) utilizing real Wi-Fi stations. To realize a low-cost radar system well-suited for IoT-based applications, we assume a Multiple-Input-Single-Output (MISO) system, where the Wi-Fi station has multiple transmit antennas and only a single receive antenna available. Also, the Wi-Fi uses Orthogonal Frequency Division Multiplexing (OFDM) signals, offering Channel State Information (CSI) over the subcarriers. Our technique includes the CSI calibration, which is essential for the positioning application because the CSI has a phase error due to the clock difference between the transmitter and receiver, etc. A joint ToF-DoD detection technique is introduced to detect the target position, where the Doppler shifted component is retrieved by applying Fourier transformation to the observed CSI. The experimental results confirm that our Wi-Fi-based radar could successfully localize the target's position.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) MISO radarWi-Fi stationsToFDoDhuman-body localization
Paper # AP2023-208
Date of Issue 2024-03-07 (AP)

Conference Information
Committee AP
Conference Date 2024/3/14(2days)
Place (in Japanese) (See Japanese page)
Place (in English) UNIVERSITY OF FUKUI
Topics (in Japanese) (See Japanese page)
Topics (in English) Antennas and Propagation
Chair Kunio Sakakibara(Nagoya Inst. of Tech.)
Vice Chair YUAN Qiaowei(Tohoku Inst. of Tech.)
Secretary YUAN Qiaowei(Mitsubishi Electric)
Assistant Tomoki Murakami(NTT)

Paper Information
Registration To Technical Committee on Antennas and Propagation
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Talk (Young Researcher)] ToF-based Positioning Technique and Its Evaluation Using Real Wi-Fi Stations
Sub Title (in English)
Keyword(1) MISO radarWi-Fi stationsToFDoDhuman-body localization
1st Author's Name Abudusaimi Abuduaini
1st Author's Affiliation Iwate University(Iwate Uinv)
2nd Author's Name Naoki Honma
2nd Author's Affiliation Iwate University(Iwate Uinv)
3rd Author's Name Kentaro Murata
3rd Author's Affiliation Iwate University(Iwate Uinv)
4th Author's Name Takumi Shimofusa
4th Author's Affiliation Iwate University(Iwate Uinv)
5th Author's Name Nobuyuki Shiraki
5th Author's Affiliation Panasonic Cooperation(Panasonic)
6th Author's Name Shoichi Iizuka
6th Author's Affiliation Panasonic Cooperation(Panasonic)
7th Author's Name Takeshi Nakayama
7th Author's Affiliation Panasonic Cooperation(Panasonic)
Date 2024-03-14
Paper # AP2023-208
Volume (vol) vol.123
Number (no) AP-441
Page pp.pp.39-44(AP),
#Pages 6
Date of Issue 2024-03-07 (AP)