30% Reach Increase via Low-complexity Hybrid HD/SD FEC and Improved 4D Modulation

Gabriele Liga; Bin Chen; Sjoerd van der Heide; Alireza Sheikh; Menno van den Hout; Chigo M. Okonkwo; Alex  Alvarado

doi:10.1109/LPT.2020.2995636

30% Reach Increase via Low-complexity Hybrid HD/SD FEC and Improved 4D Modulation

Gabriele Liga (Corresponding author), Bin Chen (Corresponding author), Sjoerd van der Heide, Alireza Sheikh, Menno van den Hout, Chigo M. Okonkwo, Alex Alvarado

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Current optical coherent transponders technology is driving data rates towards 1 Tb/s/λ and beyond. This trend requires both high-performance coded modulation schemes and efficient implementation of the forward-error-correction (FEC) decoder. A possible solution to this problem is combining advanced multidimensional modulation formats with low-complexity hybrid HD/SD FEC decoders. Following this rationale, in this paper we combine two recently introduced coded modulation techniques: the geometrically-shaped 4D-64 polarization ring-switched and the soft-aided bit-marking-scaled reliability decoder. This joint scheme enabled us to experimentally demonstrate the transmission of 11×218 Gbit/s channels over transatlantic distances at 5.2 bit/4D-sym. Furthermore, a 30% reach increase is demonstrated over PM-8QAM and conventional HD-FEC decoding for product codes.

Original language	English
Journal	IEEE Photonics Technology Letters
DOIs	https://doi.org/10.1109/LPT.2020.2995636
Publication status	E-pub ahead of print - 19 May 2020

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Liga, G., Chen, B., van der Heide, S., Sheikh, A., van den Hout, M., Okonkwo, C. M., & Alvarado, A. (2020). 30% Reach Increase via Low-complexity Hybrid HD/SD FEC and Improved 4D Modulation. IEEE Photonics Technology Letters. https://doi.org/10.1109/LPT.2020.2995636

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title = "30{\%} Reach Increase via Low-complexity Hybrid HD/SD FEC and Improved 4D Modulation",

abstract = "Current optical coherent transponders technology is driving data rates towards 1 Tb/s/λ and beyond. This trend requires both high-performance coded modulation schemes and efficient implementation of the forward-error-correction (FEC) decoder. A possible solution to this problem is combining advanced multidimensional modulation formats with low-complexity hybrid HD/SD FEC decoders. Following this rationale, in this paper we combine two recently introduced coded modulation techniques: the geometrically-shaped 4D-64 polarization ring-switched and the soft-aided bit-marking-scaled reliability decoder. This joint scheme enabled us to experimentally demonstrate the transmission of 11×218 Gbit/s channels over transatlantic distances at 5.2 bit/4D-sym. Furthermore, a 30{\%} reach increase is demonstrated over PM-8QAM and conventional HD-FEC decoding for product codes.",

author = "Gabriele Liga and Bin Chen and {van der Heide}, Sjoerd and Alireza Sheikh and {van den Hout}, Menno and Okonkwo, {Chigo M.} and Alex Alvarado",

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doi = "10.1109/LPT.2020.2995636",

language = "English",

journal = "IEEE Photonics Technology Letters",

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30% Reach Increase via Low-complexity Hybrid HD/SD FEC and Improved 4D Modulation. / Liga, Gabriele (Corresponding author); Chen, Bin (Corresponding author); van der Heide, Sjoerd ; Sheikh, Alireza ; van den Hout, Menno ; Okonkwo, Chigo M.; Alvarado, Alex .

In: IEEE Photonics Technology Letters, 19.05.2020.

Research output: Contribution to journal › Article › Academic › peer-review

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AB - Current optical coherent transponders technology is driving data rates towards 1 Tb/s/λ and beyond. This trend requires both high-performance coded modulation schemes and efficient implementation of the forward-error-correction (FEC) decoder. A possible solution to this problem is combining advanced multidimensional modulation formats with low-complexity hybrid HD/SD FEC decoders. Following this rationale, in this paper we combine two recently introduced coded modulation techniques: the geometrically-shaped 4D-64 polarization ring-switched and the soft-aided bit-marking-scaled reliability decoder. This joint scheme enabled us to experimentally demonstrate the transmission of 11×218 Gbit/s channels over transatlantic distances at 5.2 bit/4D-sym. Furthermore, a 30% reach increase is demonstrated over PM-8QAM and conventional HD-FEC decoding for product codes.

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