| Presentation | 2021-11-26 [Poster Presentation] Study of Respiratory Rate Estimation Based on WiFi Frame Capture Takamochi Kanda, Takashi Sato, Hiromitsu Awano, Sota, Koji Yamamoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper introduces a method of respiratory rate estimation based on frame capture of wireless local area network (WLAN). This method uses beamforming feedback matrices (BFMs) contained in the current WLAN frames to estimate the respiratory rate. BFMs are given as right singular matrix in the singular value decomposition of the channel state information (CSI) matrix, where they are transmitted without encryption and can be easily obtained by frame capture. Thus, compared to the conventional CSI-based respiratory rate estimation methods, our method does not require any firmware modifications or special chipsets. In addition, our method performs respiratory rate estimation based on signal processing approaches without using a learning-based one. Specifically, it firstly captures the subject's chest fluctuations using principal component analysis (PCA), and subsequently extracts the frequency corresponding to the respiratory rate using discrete fourier transform (DFT). As a result of the experiment, the proposed method can estimate the respiratory rate of a person sitting in a chair with an error of less than 3.5 breaths/minute. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | respiratory rate estimation / frame capture / IEEE 802.11ax / wireless sensing |
| Paper # | SRW2021-44,SeMI2021-43,CNR2021-18 |
| Date of Issue | 2021-11-18 (SRW, SeMI, CNR) |
| Conference Information | |
| Committee | SRW / SeMI / CNR |
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| Conference Date | 2021/11/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | IoT Workshop |
| Chair | Hanako Noda(Anritsu) / Koji Yamamoto(Kyoto Univ.) / Masayuki Kanbara(NAIST) |
| Vice Chair | Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT) / Kazuya Monden(Hitachi) / Yasunori Owada(NICT) / Yoshihiko Murakawa(Kyoto Inst. of Tech.) |
| Secretary | Keiichi Mizutani(NTT) / Kentaro Saito(NIigata Univ.) / Hirokazu Sawada(Cyber Univ.) / Kazuya Monden(Waseda Univ.) / Yasunori Owada(Osaka Univ.) / Yoshihiko Murakawa(Toshiba) |
| Assistant | Akihito Noda(Nanzan Univ.) / Yuki Katsumata(NTT DOCOMO) / Akihito Taya(Aoyama Gakuin Univ.) / Yu Nakayama(Tokyo Univ. of Agri. and Tech.) / Yuta Hoshi(NHK) / Junji Yamato(Kogakuin Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Short Range Wireless Communications / Technical Committee on Sensor Network and Mobile Intelligence / Technical Committee on Cloud Network Robotics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Study of Respiratory Rate Estimation Based on WiFi Frame Capture |
| Sub Title (in English) | |
| Keyword(1) | respiratory rate estimation |
| Keyword(2) | frame capture |
| Keyword(3) | IEEE 802.11ax |
| Keyword(4) | wireless sensing |
| 1st Author's Name | Takamochi Kanda |
| 1st Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 2nd Author's Name | Takashi Sato |
| 2nd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 3rd Author's Name | Hiromitsu Awano |
| 3rd Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 4th Author's Name | Sota |
| 4th Author's Affiliation | Kyoto University(Kyoto Univ.) |
| 5th Author's Name | Koji Yamamoto |
| 5th Author's Affiliation | Kyoto University(Kyoto Univ.) |
| Date | 2021-11-26 |
| Paper # | SRW2021-44,SeMI2021-43,CNR2021-18 |
| Volume (vol) | vol.121 |
| Number (no) | SRW-265,SeMI-266,CNR-267 |
| Page | pp.pp.60-62(SRW), pp.47-49(SeMI), pp.37-39(CNR), |
| #Pages | 3 |
| Date of Issue | 2021-11-18 (SRW, SeMI, CNR) |