TR2022-145

Dual Coding Concatenation for Burst-Error Correction in Probabilistic Amplitude Shaping

    •  Skvortcov, P., Koike-Akino, T., Millar, D.S., Kojima, K., Parsons, K., "Dual Coding Concatenation for Burst-Error Correction in Probabilistic Amplitude Shaping", IEEE Journal of Lightwave Technology, DOI: 10.1109/​JLT.2022.3178675, Vol. 40, No. 16, pp. 5502-5513, November 2022.
      BibTeX TR2022-145 PDF
      • @article{Skvortcov2022nov,
      • author = {Skvortcov, Pavel and Koike-Akino, Toshiaki and Millar, David S. and Kojima, Keisuke and Parsons, Kieran},
      • title = {Dual Coding Concatenation for Burst-Error Correction in Probabilistic Amplitude Shaping},
      • journal = {IEEE Journal of Lightwave Technology},
      • year = 2022,
      • volume = 40,
      • number = 16,
      • pages = {5502--5513},
      • month = nov,
      • doi = {10.1109/JLT.2022.3178675},
      • issn = {1558-2213},
      • url = {https://www.merl.com/publications/TR2022-145}
      • }
  • MERL Contacts:
  • Research Areas:

    Communications, Optimization, Signal Processing

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 re- verse 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.