English

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

Signal Processing 2026-01-27 v1
Authors: 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.

Keywords

FTN-QAM PCS-QAM amplifier-less coherent communication power margin

Cite

@article{arxiv.2601.17803,
  title  = {Comparison of Single Carrier FTN-QAM and PCS-QAM for Amplifier-less Coherent Communication Systems},
  author = {Dongdong Zou and Fan Li and Wei Wang and Zhongxing Tian and Yuheng Liu and Gangxiang Shen and Yi Cai},
  journal= {arXiv preprint arXiv:2601.17803},
  year   = {2026}
}

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