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Conferences > OFC > 2022 > Tu3B > Tu3B.2

On the Performance of Digital Resolution Enhancement and Waterfilling in Digital Subcarrier Multiplexing Systems with Low-Resolution DACs

Trung-Hien Nguyen, Youssef Nasser, Yu Zhao, Sami Mumtaz, Abel Lorences-Riesgo, Celestino S. Martins, Gabriel Charlet, and Stefanos Dris

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Abstract

Digital resolution enhancement is experimentally demonstrated for 800G 107 Gbaud 8-carrier PCS-256QAM employing waterfilling. 1.4 dB SNR and 1 dB Q2-factor gains are obtained with a 4-bit DAC at 1.125 samples/symbol.

© 2022 The Author(s)

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