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Wideband Time-Domain Digital Backpropagation via Subband Processing and Deep Learning (1807.01545v1)
Published 4 Jul 2018 in cs.IT, math.IT, and stat.ML
Abstract: We propose a low-complexity sub-banded DSP architecture for digital backpropagation where the walk-off effect is compensated using simple delay elements. For a simulated 96-Gbaud signal and 2500 km optical link, our method achieves a 2.8 dB SNR improvement over linear equalization.