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Perturbation-based Sequence Selection for Probabilistic Amplitude Shaping
Published 12 Jul 2024 in eess.SP, cs.IT, and math.IT | (2407.09006v1)
Abstract: We introduce a practical sign-dependent sequence selection metric for probabilistic amplitude shaping and propose a simple method to predict the gains in signal-to-noise ratio (SNR) for sequence selection. The proposed metric provides a $0.5$ dB SNR gain for single-polarized 256-QAM transmission over a long-haul fiber link.
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