65 citations · 255 across the 21 of their papers we have counts for
17 papers · 1 filter
Nonlinearity Compensation for Coherent Optical Satellite Communications
Stella Civelli, Luca Potì, Enrico Forestieri +1
Optical satellite uplinks rely on high-power optical amplifiers (HPOAs) to overcome free-space attenuation and enable long-distance transmission. However, at high power levels, fib…
Fiber Nonlinearity Mitigation in Coherent Optical Systems
Stella Civelli, Dario Cellini, Enrico Forestieri +1
Fiber nonlinearity represents a critical challenge to the capacity enhancement of modern optical communication systems. In recent years, significant research efforts have focused o…
A New Twist on Low-Complexity Digital Backpropagation
Stella Civelli, Debi Pada Jana, Enrico Forestieri +1
This work proposes a novel low-complexity digital backpropagation (DBP) method, with the goal of optimizing the trade-off between backpropagation accuracy and complexity. The metho…
Coupled-Band ESSFM for Low-Complexity DBP
Stella Civelli, Debi Pada Jana, Enrico Forestieri +1
We propose a novel digital backpropagation (DBP) technique that combines perturbation theory, subband processing, and splitting ratio optimization. We obtain 0.23 dB, 0.47 dB, or 0…
Sequence-Selection-Based Constellation Shaping for Nonlinear Channels
Stella Civelli, Enrico Forestieri, Marco Secondini
Probabilistic shaping is a pragmatic approach to improve the performance of coherent optical fiber communication systems. In the nonlinear regime, the advantages offered by probabi…
Practical Implementation of Sequence Selection for Nonlinear Probabilistic Shaping
Stella Civelli, Enrico Forestieri, Marco Secondini
We propose two novel techniques to implement sequence selection (SS) for fiber nonlinearity mitigation, demonstrating a nonlinear shaping gain of 0.24 bits/s/Hz, just 0.1 bits/s/Hz…