Cross-reference-based sampling frequency offset estimation method for 60-Gbps 50-m photonics-aided D-band IM/DD wireless transmission system

作     者：Long, Jianyu Yang, Xiongwei Wang, Mingxu Zhang, Long Wang, Chen Sang, Bohan Bian, Chengzhen Wang, Kaihui Zhou, Wen Zhao, Feng Zhao, Xianming Yu, Jianjun 

作者机构：Fudan Univ State Key Lab AS & Syst Key Lab Informat Sci Electromagnet Waves MoE Shanghai 200433 Peoples R China Fudan Univ Sch Informat Sci & Technol Shanghai 200433 Peoples R China Xian Univ Posts & Telecommun Sch Automat Xian 710121 Peoples R China Harbin Inst Technol Inst Future Informat Technol Harbin 150001 Peoples R China 

出 版 物：《OPTICS AND LASER TECHNOLOGY》 (Opt Laser Technol)

年 卷 期：2025年第184卷

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：National Key R&D Program of China [2023YFB2905600] National Natural Science Foun-dation of China [62127802, 62331004, 62305067, U24B20142, U24B20168, 62427815] Key Project of Jiangsu Province of China [BE2023001-4] 

主　　题：Sampling frequency offset D-band Photonics-aided technology Intensity Modulation and Direct Detection Optical wireless integration 

摘      要：In this article, we successfully realize 60-Gbps 50-m photonics-aided D-band IM/DD wireless transmission, enabling by a novel cross-reference-based (CRb) sampling frequency offset (SFO) estimation method. We analyze it through theoretical derivation, simulation, and experimentation, enabling the BER of a 30-GBaud PAM-4 signal calculated from up to 2,998,272 continuous symbols within a 100-us time window meeting the 25% SD-FEC threshold. Besides, all the outcomes prove the effectiveness of the proposed method, which can enhance the performance of future optical wireless communication systems and other digital DSP-based communication systems.