| Presentation | 2023-08-31 Improving Performance of LDM Transmission against Non-linear Distortion in Satellite Broadcasting System Yuki Koizumi, Masaaki Kojima, Masashi Kamei, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We are developing a satellite broadcasting system with layered division multiplexing (LDM) scheme that multiplexes multiple modulation signals with different power levels as injection levels (IL), in the same channel with the aim of providing services flexibly in accordance with receiving conditions. LDM consists of an upper layer (UL) signal with high power and a lower layer (LL) signal with low power and enables a construction of advanced transmission system to be designed with different levels of robustness and bit rates in the same channel. We propose a decoding method to improve the transmission performance of LL signal against non-linear distortion occurring in a satellite transponder of satellite broadcasting system. Our proposed method enables an error-correction decoding considering non-linear distortion by using pilot signals with known symbol transitions, resulting in improving the transmission performance of LL signal in the satellite channel. Computer simulation results show that our proposed method achieves better performance for non-linear distortion than successive interference cancellation (SIC), which is generally used in LDM system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | LDM / SIC / Satellite broadcasting / Non-linear distortion compensation / Pilot signals / VVC / Scalable coding |
| Paper # | SAT2023-35 |
| Date of Issue | 2023-08-24 (SAT) |
| Conference Information | |
| Committee | RCS / SAT |
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| Conference Date | 2023/8/31(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Naganoken Nokyo Building, and online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Satellite Communications, Broadcasting, Forward Error Correction, Wireless Communications, etc. |
| Chair | Kenichi Higuchi(Tokyo Univ. of Science) / Takana Kaho(Shonan Inst. of Tech.) |
| Vice Chair | Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Naoto Ishii(NEC) / Masashi Kamei(NHK) / Yoji Kishi(KDDI Research) |
| Secretary | Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) / Naoto Ishii(Mitsubishi Electric) / Masashi Kamei(NTT) / Yoji Kishi(NHK) |
| Assistant | Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Kiichi Tateishi(NTT Docomo) / Riichiro Nagareda(KDDI Research) / Hideaki Kotake(NICT) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Satellite Telecommunications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improving Performance of LDM Transmission against Non-linear Distortion in Satellite Broadcasting System |
| Sub Title (in English) | Decoding Method of LL Signal with Pilot Signals |
| Keyword(1) | LDM |
| Keyword(2) | SIC |
| Keyword(3) | Satellite broadcasting |
| Keyword(4) | Non-linear distortion compensation |
| Keyword(5) | Pilot signals |
| Keyword(6) | VVC |
| Keyword(7) | Scalable coding |
| 1st Author's Name | Yuki Koizumi |
| 1st Author's Affiliation | NHK(NHK) |
| 2nd Author's Name | Masaaki Kojima |
| 2nd Author's Affiliation | NHK(NHK) |
| 3rd Author's Name | Masashi Kamei |
| 3rd Author's Affiliation | NHK(NHK) |
| Date | 2023-08-31 |
| Paper # | SAT2023-35 |
| Volume (vol) | vol.123 |
| Number (no) | SAT-171 |
| Page | pp.pp.13-18(SAT), |
| #Pages | 6 |
| Date of Issue | 2023-08-24 (SAT) |