Multi-dimensional Energy Limitation in Sphere Shaping for Nonlinear Interference Noise Mitigation

We propose Four-Dimensional (4D) energy limit enumerative sphere shaping (ESS) of M -QAM signaling to minimize rate loss and improve the transmission performance over non-linear WDM optical-fiber systems. Simulation results show that the proposed scheme outperforms the conventional ESS by 0.19 bit/4...

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Veröffentlicht in:2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM) S. 1 - 5
Hauptverfasser: Liu, Jingtian, Awwad, Elie, Jaouen, Yves
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 04.11.2023
Schlagworte:
coherent transmission systems
enumerative sphere shaping
Measurement
modulation and coding schemes
non-linear Kerr effect
Optical fiber communication
Optical polarization
Probabilistic constellation shaping
Propagation losses
Search problems
Simulation
Wavelength division multiplexing
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Zusammenfassung:We propose Four-Dimensional (4D) energy limit enumerative sphere shaping (ESS) of M -QAM signaling to minimize rate loss and improve the transmission performance over non-linear WDM optical-fiber systems. Simulation results show that the proposed scheme outperforms the conventional ESS by 0.19 bit/4D-symbol in achievable information rate over a 205-km single-span link and a WDM transmission of five polarization-division-multiplexed channels with 400-Gbit/s net rate per channel. We also study the achieved performance over several shaping block lengths and show that the achieved gains do not scale well over multi-span systems.
DOI:10.1109/ACP/POEM59049.2023.10369105