Learned Digital Back-Propagation for an optical-domain waveform integrated with communication and sensing
Authors: 
Zhiyi Chen, Peizhe Xin, Peng Zhan, Menhua Zheng, Yuxiao Sun, Can Li, Ping Meng, Yajie Li, Yongli ZhaoAuthors Info & Claims
Pages 312 - 316
Abstract
This paper presents a nonlinear impairment compensation method for an integrated sensing and communication system (ISAC) in optical fibers. The proposed method is based on learned digital back-propagation algorithm (LDBP). The optical domain ISAC waveform used in this work, i.e., 4-PAM-LFM, is generated by modulating a linear frequency modulation (LFM) optical carrier with a 4-level pulse amplitude-modulation signal. The LFM optical carrier makes the dispersion and nonlinear impairment characteristics of 4-PAM-LFM very different from those of the conventional optical communication waveforms (e.g., 16-QAM). The effectiveness of LDBP for 4-PAM-LFM is verified by building a numerical simulation platform. The influence of initial frequency, bandwidth, and launch power of 4-PAM-LFM on the compensation effectiveness of LDBP is also examined. It is observed that the LDBP compensation results become obviously worse when the initial frequency is increased. On the contrary, the bandwidth of 4-PAM-LFM only has a slight impact on the LDBP compensation results. This work provides a beneficial reference for the design of optical-domain ISAC waveforms.
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Index Terms
- Learned Digital Back-Propagation for an optical-domain waveform integrated with communication and sensing
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Published In
December 2023
363 pages
ISBN:9798400707964
DOI:10.1145/3638782
Copyright © 2023 ACM.
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Published: 18 April 2024
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- Science and Technology Project of State Grid Corporation of China
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ICCNS 2023
ICCNS 2023: 2023 13th International Conference on Communication and Network Security
December 6 - 8, 2023
Fuzhou, China
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