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Conferences > OFC > 2024 > Tu3K > Tu3K.1

Is Ultra-High Order QAM Necessary for Delta-Sigma Modulator in Mobile Front-Haul?

Yin-He Jian, Jian-Wen Chen, Chih-Chun Wang, Tzu-Chieh Wei, Chi-Wai Chow, and Chien-Hung Yeh

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Abstract

We propose a delta-sigma-modulator (DSM) using multi-stage-noise-shaping (MASH) structure. Record high efficiencies of 1.016 (hard-decision forward-error-correction, FEC) and 1.166 (soft-decision-FEC) are achieved in the proposed MASH-DSM without the need of ultra-high-order quadrature-amplitude-modulation (QAM).

© 2024 The Author(s)

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