| Presentation | 2020-08-21 Differential trellis-coded OFDM employing multiple differential detection with channel prediction for severe doubly-selective environment Kota Iwamoto, Tetsuro Kubo, Hiroshi Kubo, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes differential trellis-coded orthogonal frequency division multiplexing (OFDM) for severe time and frequency selectivity, i.e., doubly-selective environment. OFDM is a good solution for frequency selectivity and multiple differential detection employing per-survivor processing (PSP-MDD) with channel prediction is a good solution for time selectivity. However, channel prediction degrades the required signal to noise power ratio (SNR) for PSP-MDD. In addition, OFDM degrades tracking capability in fast time-varying channels because of intercarrier interference (ICI). In order to cope with these problems, this paper proposes OFDM by differential trellis-coded modulation (DTCM) and demodulated PSP-MDD with channel prediction. Finally, computer simulation results confirm that the proposed scheme can improve the required SNR and the tracking capability in doubly-selective environment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Differential Encoding / Trellis-Coded Modulation / Orthogonal Frequency Division Multiplexing / Channel Prediction / Per-Survivor Processing / Multiple Differential Detection / Intercarrier Interference |
| Paper # | RCS2020-89 |
| Date of Issue | 2020-08-13 (RCS) |
| Conference Information | |
| Committee | SAT / RCS |
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| Conference Date | 2020/8/20(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hisashi Sujikai(NHK) / Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Hiroyasu Ishikawa(Nihon Univ.) / Tetsushi Ikegami(Meiji Univ.) / Fumiaki Maehara(Waseda Univ.) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) |
| Secretary | Hiroyasu Ishikawa(NHK) / Tetsushi Ikegami(KDDI Research) / Fumiaki Maehara(Kyushu Univ.) / Toshihiko Nishimura(NEC) / Tomoya Tandai |
| Assistant | Takuya Okura(NICT) / Daisuke Goto(NTT) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) |
| Paper Information | |
| Registration To | Technical Committee on Satellite Telecommunications / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Differential trellis-coded OFDM employing multiple differential detection with channel prediction for severe doubly-selective environment |
| Sub Title (in English) | |
| Keyword(1) | Differential Encoding |
| Keyword(2) | Trellis-Coded Modulation |
| Keyword(3) | Orthogonal Frequency Division Multiplexing |
| Keyword(4) | Channel Prediction |
| Keyword(5) | Per-Survivor Processing |
| Keyword(6) | Multiple Differential Detection |
| Keyword(7) | Intercarrier Interference |
| 1st Author's Name | Kota Iwamoto |
| 1st Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| 2nd Author's Name | Tetsuro Kubo |
| 2nd Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| 3rd Author's Name | Hiroshi Kubo |
| 3rd Author's Affiliation | Ritsumeikan University(Ritsumeikan Univ.) |
| Date | 2020-08-21 |
| Paper # | RCS2020-89 |
| Volume (vol) | vol.120 |
| Number (no) | RCS-130 |
| Page | pp.pp.55-60(RCS), |
| #Pages | 6 |
| Date of Issue | 2020-08-13 (RCS) |