| Presentation | 2021-03-02 [Poster Presentation] Wireless channel characterization with sparse modeling Naota Takeyama, Jin Mitsugi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In wireless channel characterization using adaptive filters, adaptive algorithms based on Lasso, Group Lasso, and SCAD have been proposed as methods using sparse modeling. However, wireless channel characterization using these adaptive algorithms cannot simultaneously regularize the filter coefficients based on their group sparsity and accurately estimate the filter coefficients. This paper proposes an adaptive filter algorithm based on Group SCAD. This adaptive algorithm improves the conventional method based on Group Lasso by using the regularization term of the non-convex function used in SCAD, which enables highly accurate estimation of filter coefficients based on group sparsity. In this report, the proposal is evaluated in terms of converging speed and the accuracy to reconstruct the filter parameter with numerical simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Adaptive Filter / System Characterization / Sparse Modeling |
| Paper # | SeMI2020-66 |
| Date of Issue | 2021-02-22 (SeMI) |
| Conference Information | |
| Committee | SeMI / IPSJ-MBL / IPSJ-UBI |
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| Conference Date | 2021/3/1(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Computing, Ubiquitous Computing, etc. |
| Chair | Susumu Ishihara(Shizuoka Univ.) |
| Vice Chair | Kazuya Monden(Hitachi) / Koji Yamamoto(Kyoto Univ.) |
| Secretary | Kazuya Monden(Kyoto Univ.) / Koji Yamamoto(Cyber Univ.) / (Hitachi) / (Waseda Univ.) |
| Assistant | Yuki Katsumata(NTT DOCOMO) / Yu Nakayama(Tokyo Univ. of Agri. and Tech.) / Akira Uchiyama(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Sensor Network and Mobile Intelligence / Special Interest Group on Mobile Computing and Pervasive Systems / Special Interest Group on Ubiquitous Computing System |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Wireless channel characterization with sparse modeling |
| Sub Title (in English) | |
| Keyword(1) | Adaptive Filter |
| Keyword(2) | System Characterization |
| Keyword(3) | Sparse Modeling |
| 1st Author's Name | Naota Takeyama |
| 1st Author's Affiliation | Keio University(Keio Univ.) |
| 2nd Author's Name | Jin Mitsugi |
| 2nd Author's Affiliation | Keio University(Keio Univ.) |
| Date | 2021-03-02 |
| Paper # | SeMI2020-66 |
| Volume (vol) | vol.120 |
| Number (no) | SeMI-382 |
| Page | pp.pp.47-56(SeMI), |
| #Pages | 10 |
| Date of Issue | 2021-02-22 (SeMI) |