| Presentation | 2021-03-03 A Study on Gaussian Belief Propagation with Whitening Filter for Faster-than-Nyquist Transmissions Natsuki Yanai, Shinsuke Ibi, Takumi Takahashi, Hisato Iwai, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a novel concatenated structure of whitening filter and iterative detector based on Gaussian belief propagation (GaBP) for suppressing inter-symbol interference (ISI) in faster-than-Nyquist (FTN) transmissions. The FTN transmissions can achieve higher data rate than the typical Nyquist transmission scheme by superimposing symbols at intervals less than the Nyquist interval in the time domain. However, the time compression also results in severe ISI. Moreover, the FTN transmissions cause severe correlation between the noise components, and this severely degrades the convergence property of GaBP iterative detection, which is designed on the assumption of uncorrelated observation signals. To improve the detection capability of GaBP detection, in this paper, we introduce whiting filters based on eigenvalue decomposition and Cholesky decomposition before GaBP iterative detection process. Finally, we evaluate the bit error rate (BER) performances by computer simulations, and clarify the validity of the FTN detector based on our proposed structure. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Faster-than-Nyquist / inter-symbol interference / Gaussian belief propagation / whitening filter |
| Paper # | RCS2020-205 |
| Date of Issue | 2021-02-24 (RCS) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2021/3/3(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Masayuki Ariyoshi(NEC) / Satoshi Denno(Okayama Univ.) |
| Vice Chair | Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Suguru Kameda(Tohoku Univ.) / Osamu Takyu(Shinshu Univ.) / Kentaro Ishidu(NICT) / Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Inst. of Tech.) / Hanako Noda(Anritsu) |
| Secretary | Fumiaki Maehara(Kyushu Univ.) / Toshihiko Nishimura(NEC) / Tomoya Tandai(ATR) / Suguru Kameda(Univ. of Electro-Comm.) / Osamu Takyu(Mie Univ.) / Kentaro Ishidu(NTT) / Keiichi Mizutani(NIigata Univ.) / Kentaro Saito / Hanako Noda |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Mai Ohta(Fukuoka Univ.) / Teppei Oyama(Fujitsu Lab.) / Kentaro Kobayashi(Nagoya Univ.) / Masaaki Fuse(Anritsu) / Akihito Noda(Nanzan Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Gaussian Belief Propagation with Whitening Filter for Faster-than-Nyquist Transmissions |
| Sub Title (in English) | |
| Keyword(1) | Faster-than-Nyquist |
| Keyword(2) | inter-symbol interference |
| Keyword(3) | Gaussian belief propagation |
| Keyword(4) | whitening filter |
| 1st Author's Name | Natsuki Yanai |
| 1st Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 2nd Author's Name | Shinsuke Ibi |
| 2nd Author's Affiliation | Doshisha University(Doshisha Univ.) |
| 3rd Author's Name | Takumi Takahashi |
| 3rd Author's Affiliation | Osaka University(Osaka Univ.) |
| 4th Author's Name | Hisato Iwai |
| 4th Author's Affiliation | Doshisha University(Doshisha Univ.) |
| Date | 2021-03-03 |
| Paper # | RCS2020-205 |
| Volume (vol) | vol.120 |
| Number (no) | RCS-404 |
| Page | pp.pp.13-18(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-02-24 (RCS) |