| Presentation | 2021-08-20 Low Complexity Channel Analysis using Discrete Fourier Basis for Wireless LAN Sensing Yuhei Nagao, Kosuke Tsuji, Ryotaro Isshiki, Leonardo Lanante, Hiroshi Ochi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Channel State Information (CSI) sensing over wireless LAN is gathering attention, because it enables economically and easily to apply several applications in smart homes and healthcare, such as a human detection, motion detection and vital signs monitoring. In CSI sensing, principal component analysis (PCA) is used for feature extraction and dimensionality reduction as a step of machine learning. However, the computational complexity of PCA is high due to its singular value decomposition (SVD). In this paper, we propose a low complexity CSI analysismethod which performs an imperfect diagonalization using discrete Fourier basis. This approach is based on the characteristics of OFDM transmission. The real experiments show that the proposed method has three effectiveness in following aspects, computational complexity, feature extraction, and dimensionality reduction. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless LAN / Sensing / Data Analysis / PCA / CSI / SVD / DFT / Diagonalization |
| Paper # | AP2021-49 |
| Date of Issue | 2021-08-13 (AP) |
| Conference Information | |
| Committee | AP |
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| Conference Date | 2021/8/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antennas and Propagation |
| Chair | Hiroshi Yamada(Niigata Univ.) |
| Vice Chair | Mitoshi Fujimoto(Fukui Univ) |
| Secretary | Mitoshi Fujimoto(NTT DOCOMO) |
| Assistant | Dr. Kim(Niigata Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Low Complexity Channel Analysis using Discrete Fourier Basis for Wireless LAN Sensing |
| Sub Title (in English) | |
| Keyword(1) | Wireless LAN |
| Keyword(2) | Sensing |
| Keyword(3) | Data Analysis |
| Keyword(4) | PCA |
| Keyword(5) | CSI |
| Keyword(6) | SVD |
| Keyword(7) | DFT |
| Keyword(8) | Diagonalization |
| 1st Author's Name | Yuhei Nagao |
| 1st Author's Affiliation | Radrix co.,ltd.(Radrix) |
| 2nd Author's Name | Kosuke Tsuji |
| 2nd Author's Affiliation | Kyushu Institute of Technology(Kyutech) |
| 3rd Author's Name | Ryotaro Isshiki |
| 3rd Author's Affiliation | Kyushu Institute of Technology(Kyutech) |
| 4th Author's Name | Leonardo Lanante |
| 4th Author's Affiliation | Kyushu Institute of Technology(Kyutech) |
| 5th Author's Name | Hiroshi Ochi |
| 5th Author's Affiliation | Radrix co.,ltd.(Radrix) |
| Date | 2021-08-20 |
| Paper # | AP2021-49 |
| Volume (vol) | vol.121 |
| Number (no) | AP-141 |
| Page | pp.pp.7-12(AP), |
| #Pages | 6 |
| Date of Issue | 2021-08-13 (AP) |