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PFA-NS: Power-Fading-Aware Noise Shaping Enabled C-Band IMDD System with Low Resolution DAC

Signal Processing 2025-12-24 v1
Authors: Xiaobo Zeng , Liangcai Chen , Pan Liu , Ruonan Deng
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Abstract

We propose and demonstrate a power-fading-aware noise-shaping technique for C-band IMDD system with low resolution DAC, which shapes and concentrates quantization noise within the fading-induced notch areas, yielding 94% improvement in data-rate over traditional counterpart.

Keywords

power-fading-aware noise shaping low resolution DAC C-band IMDD system data-rate improvement

Cite

@article{arxiv.2512.20010,
  title  = {PFA-NS: Power-Fading-Aware Noise Shaping Enabled C-Band IMDD System with Low Resolution DAC},
  author = {Xiaobo Zeng and Liangcai Chen and Pan Liu and Ruonan Deng},
  journal= {arXiv preprint arXiv:2512.20010},
  year   = {2025}
}

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