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Mitigating Nonlinear Interference by Limiting Energy Variations in Sphere Shaping

Published 3 Jan 2022 in eess.SP | (2201.00674v2)

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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