| Presentation | 2022-07-15 Trapezoidal Block Householder Reflector and Its Application to Precoding Hikaru Kawasaki, Takeshi Matsumura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Orthonormalization like singular value decomposition and QR decomposition is closely related to solution representation in the linear system and has wide applications. This study proposes a trapezoidal block Householder reflector to efficiently represent a unitary matrix in orthonormalization. The proposed method can save storage overheads compared to the conventional compact WY representation and the theoretical analysis proves similar properties to the orthogonal projection and pseudo-inverse matrix. As one of the applications, numerical experiments show that the proposed method can improve the computational complexity of spectral precoding without performance degradation of sidelobe suppression and error rate. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | orthonormlization / Householder transformation / basis-kernel representation / precoding / sidelobe suppression |
| Paper # | CS2022-32 |
| Date of Issue | 2022-07-07 (CS) |
| Conference Information | |
| Committee | CS |
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| Conference Date | 2022/7/14(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yakushima Environmental and Cultural Village Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Next Generation Networks, Access Networks, Broadband Access, Power Line Communications, Wireless Communication Systems, Coding Systems, etc. |
| Chair | Daisuke Umehara(Kyoto Inst. of Tech.) |
| Vice Chair | Seiji Kozaki(Mitsubishi Electric) |
| Secretary | Seiji Kozaki(Chiba Inst. of Tech.) |
| Assistant | Hikaru Kawasaki(NICT) / Yuta Ida(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Trapezoidal Block Householder Reflector and Its Application to Precoding |
| Sub Title (in English) | |
| Keyword(1) | orthonormlization |
| Keyword(2) | Householder transformation |
| Keyword(3) | basis-kernel representation |
| Keyword(4) | precoding |
| Keyword(5) | sidelobe suppression |
| 1st Author's Name | Hikaru Kawasaki |
| 1st Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| 2nd Author's Name | Takeshi Matsumura |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology(NICT) |
| Date | 2022-07-15 |
| Paper # | CS2022-32 |
| Volume (vol) | vol.122 |
| Number (no) | CS-110 |
| Page | pp.pp.83-88(CS), |
| #Pages | 6 |
| Date of Issue | 2022-07-07 (CS) |