Demonstration of 1.2-km D-Band Wireless Fronthaul Using Digital-Differential-PCM Scheme
We propose a digital-differential-pulse-code-modulation fronthaul (DDP-FH) scheme and conduct experimental validation within a photonics-aided D-band 1.2-km wireless fronthaul system. In the experiment, by adopting different resolutions in differential-pulse-code-modulation (DPCM), the recovered signal-to-noise ratio (SNR) can be flexibly adjusted within a wide range from 19.1 dB to 38.9 dB, supporting the transmission of various formats from 64-quadrature-amplitude-modulation (64-QAM) to 4096-QAM. When the resolution of DPCM increases from 2 to 6 bit, the DDP-FH scheme achieves an average SNR gain of 5 dB for each linearly increased bandwidth (BW). Notably, compared to digital-pulse-code-modulation fronthaul (DP-FH), DDP-FH reduces the required bandwidth by approximately 1.3·BW while maintaining the same SNR.
Authors
- Xiongwei Yang (ORCID: https://orcid.org/0000-0001-9944-0361)
- Yi Wei (ORCID: https://orcid.org/0000-0002-6624-9138)
- Wen Zhou (ORCID: https://orcid.org/0000-0002-2998-5849)
- Chengzhen Bian (ORCID: https://orcid.org/0009-0009-0718-1020)
- Kaihui Wang (ORCID: https://orcid.org/0000-0001-8898-8989)
- Jianjun Yu (ORCID: https://orcid.org/0000-0002-2101-7018)
- Weiping Li (ORCID: https://orcid.org/0000-0003-0120-6193)
- Mingxu Wang (ORCID: https://orcid.org/0000-0002-7769-9353)
- Peng Tian (ORCID: https://orcid.org/0009-0005-7313-2885)
- Xianming Zhao (ORCID: https://orcid.org/0000-0002-1576-958X)
- Sicong Xu (ORCID: https://orcid.org/0009-0008-7824-6007)
- Yang Han (ORCID: https://orcid.org/0000-0002-0871-5882)
Institutions
- Harbin Institute of Technology (CN)
- Fudan University (CN)
- Purple Mountain Laboratories (CN)
- State Key Laboratory of ASIC and System
Publication Details
- Journal
- IEEE Photonics Technology Letters
- Published
- 2025-01-10
- DOI
- https://doi.org/10.1109/lpt.2025.3528329
- Citations
- 2
- Primary Topic
- Advanced Photonic Communication Systems
- Type
- article
- Field-Weighted Citation Impact
- 1.46
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China