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Analytical SNR Prediction in Long-Haul Optical Transmission using General Dual-Polarization 4D Formats (2206.00866v2)
Published 2 Jun 2022 in eess.SP, cs.IT, and math.IT
Abstract: Nonlinear interference models for dual-polarization 4D (DP-4D) modulation have only been used so far to predict signal-signal nonlinear interference. We show that including the signal-noise term in the prediction of the effective signal-to-noise ratio in long distance DP-4D transmission improves the accuracy by up to 0.2 dB.