| Title | Dual Coding Concatenation for Burst-Error Correction in Probabilistic Amplitude Shaping |
| Publication Type | Journal Article |
| Year of Publication | 2022 |
| Authors | Skvortcov, Pavel, Koike-Akino, Toshiaki, Millar, David S., Kojima, Keisuke, Parsons, Kieran |
| Journal | Journal of Lightwave Technology |
| Volume | 40 |
| Pagination | 5502—5513 |
| Date Published | aug |
| Keywords | Bit error rate, codes, composability, encoding, error correction codes, forward error correction, Metrics, optical fiber communications, parallel codes, parity check codes, probabilistic amplitude shaping, Probabilistic logic, pubcrawl, resilience, Resiliency |
| Abstract | We propose the use of dual coding concatenation for mitigation of post-shaping burst errors in probabilistic amplitude shaping (PAS) architectures. The proposed dual coding concatenation for PAS is a hybrid integration of conventional reverse concatenation and forward concatenation, i.e., post-shaping forward error correction (FEC) layer and pre-shaping FEC layer, respectively. A low-complexity architecture based on parallel Bose-Chaudhuri-Hocquenghem (BCH) codes is introduced for the pre-shaping FEC layer. Proposed dual coding concatenation can relax bit error rate (BER) requirement after post-shaping soft-decision (SD) FEC codes by an order of magnitude, resulting in a gain of up to 0.25 dB depending on the complexity of post-shaping FEC. Also, combined shaping and coding performance was analyzed based on sphere shaping and the impact of shaping length on coding performance was demonstrated. |
| Notes | Conference Name: Journal of Lightwave Technology |
| DOI | 10.1109/JLT.2022.3178675 |
| Citation Key | skvortcov_dual_2022 |
Dual Coding Concatenation for Burst-Error Correction in Probabilistic Amplitude Shaping