| Presentation | 2022-06-10 Decoding Complexity Reduction of Forward Error Correction by Channel-polarized Multilevel Coding Takeshi Kakizaki, Masanori Nakamura, Fukutaro Hamaoka, Yoshiaki Kisaka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In a digital coherent optical communication system, it is necessary to design a forward error correction (FEC) and modulation format according to the transmission distance, data rate, and power consumption requirement. Since binary codes are applied to multilevel modulation, the bit-interleaved coded modulation (BICM), which can apply one FEC code to various modulation formats, and multilevel coding, which can reduce the decoding complexity without depending on the FEC code, are used. As a new binary code, we proposed channel-polarized multilevel coding (CP-MLC), which convert the original channel into multiple channels with non-uniform capacities by channel polarization, and only applies soft-decision FEC (SD-FEC) to the unreliable channel. By combining the proposed CP-MLC apply to the FEC code of BICM, it is possible to reduce the decoding complexity without depending on the modulation format, and the code, which is an advantage of MLC. Since the proposed CP-MLC is a binary code, it can also be applied to probabilistically-shaped quadrature amplitude modulation (PS-QAM) that improves noise tolerance by using probabilistic constellation shaping. We show that it is possible to reduce the decoding complexity in QAM and PS-QAM by numerical simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | forward error correction / coded modulation / digital coherent optical systems / error correction codes |
| Paper # | OCS2022-11 |
| Date of Issue | 2022-06-03 (OCS) |
| Conference Information | |
| Committee | OCS / PN / NS |
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| Conference Date | 2022/6/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Takeshi Hoshida(Fujitsu) / Hideaki Furukawa(NICT) / Akihiro Nakao(Univ. of Tokyo) |
| Vice Chair | / Kohei Shiomoto(Tokyo City Univ.) / Ryuichi Sugizaki(Furukawa Electric) / Noboru Yoshikane(KDDI Research) / Tetsuya Oishi(NTT) |
| Secretary | (NTT) / Kohei Shiomoto(Fujikura) / Ryuichi Sugizaki(NTT) / Noboru Yoshikane(Univ. of Electr-Comm.) / Tetsuya Oishi(NTT) |
| Assistant | / Kenji Ishii(Mitsubishi Electric) / Yojiro Mori(Nagoya Univ.) / Kotaro Mihara(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Optical Communication Systems / Technical Committee on Photonic Network / Technical Committee on Network Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Decoding Complexity Reduction of Forward Error Correction by Channel-polarized Multilevel Coding |
| Sub Title (in English) | |
| Keyword(1) | forward error correction |
| Keyword(2) | coded modulation |
| Keyword(3) | digital coherent optical systems |
| Keyword(4) | error correction codes |
| 1st Author's Name | Takeshi Kakizaki |
| 1st Author's Affiliation | NIPPON TELEGRAPH AND TELEPHONE CORPORATION(NTT) |
| 2nd Author's Name | Masanori Nakamura |
| 2nd Author's Affiliation | NIPPON TELEGRAPH AND TELEPHONE CORPORATION(NTT) |
| 3rd Author's Name | Fukutaro Hamaoka |
| 3rd Author's Affiliation | NIPPON TELEGRAPH AND TELEPHONE CORPORATION(NTT) |
| 4th Author's Name | Yoshiaki Kisaka |
| 4th Author's Affiliation | NIPPON TELEGRAPH AND TELEPHONE CORPORATION(NTT) |
| Date | 2022-06-10 |
| Paper # | OCS2022-11 |
| Volume (vol) | vol.122 |
| Number (no) | OCS-70 |
| Page | pp.pp.6-11(OCS), |
| #Pages | 6 |
| Date of Issue | 2022-06-03 (OCS) |