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arXiv · 2601.17803

Comparison of Single Carrier FTN-QAM and PCS-QAM for Amplifier-less Coherent Communication Systems

Dongdong Zou·Fan Li·Wei Wang·Zhongxing Tian·Yuheng Liu·Gangxiang Shen·Yi Cai
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Abstract

A performance comparison of FTN-QAM and PCS-QAM for amplifier-less short-reach coherent communication systems is provided. With the applications of phase tracking partial response DFE and turbo equalization strategy, FTN-16QAM exhibits about 0.9dB power margin advantage over PCS-64QAM.

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Dongdong Zou, Fan Li, Wei Wang, Zhongxing Tian, Yuheng Liu, Gangxiang Shen, Yi Cai. 2026-01-25. Comparison of Single Carrier FTN-QAM and PCS-QAM for Amplifier-less Coherent Communication Systems. https://arxiv.org/abs/2601.17803

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