Mitigating Nonlinear Interference by Limiting Energy Variations in Sphere Shaping
Yunus Can G\"ultekin, Alex Alvarado, Olga Vassilieva, Inwoong Kim,, Paparao Palacharla, Chigo Okonkwo, Frans M.J. Willems
TL;DR
This paper introduces band-trellis enumerative sphere shaping to reduce energy fluctuations in channel inputs, resulting in significant SNR improvements and higher data rates in single-span systems.
Contribution
It proposes a novel shaping method that effectively limits energy variations, enhancing performance over traditional sphere shaping techniques.
Findings
0.74 dB SNR gain demonstrated
Up to 9% increase in data rates
Effective reduction of energy variations
Abstract
Band-trellis enumerative sphere shaping is proposed to decrease the energy variations in channel input sequences. Against sphere shaping, 0.74 dB SNR gain and up to 9% increase in data rates are demonstrated for single-span systems.
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Taxonomy
TopicsPhotonic and Optical Devices · Optical Network Technologies · Advanced Photonic Communication Systems