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eess.SP2026
The Memory-Enhanced Gaussian Noise (MEGN) Model for Fiber-Optic Channels
Kaiquan Wu, Gabriele Liga, Marco Secondini +5
The enhanced Gaussian noise (EGN) model is widely used for estimating the nonlinear interference (NLI) power accumulated in coherent fiber-optic transmission systems. Given a fixed…
eess.SP2026
Joint Subcarrier Phase Recovery for Nonlinearity Mitigation
Marco Secondini, Stella Civelli
We propose a low-complexity phase recovery scheme that simultaneously mitigates laser phase noise and fiber nonlinearity across several subcarriers. In a long single-span link with…
eess.SP2026
ML-Enhanced Digital Backpropagation for Long-Reach Single-Span Systems
Dario Cellini, Stella Civelli, Marco Secondini
We propose a digital backpropagation method that employs machine-learning-aided joint optimization of dispersion step lengths and nonlinear phase rotation filters within an FFT-bas…