Mr. Jingyu Wang Profile

Jingyu Wang

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Proceedings Article | 30 April 2024 Paper

Performance analysis of hybrid RF-UWOC dual-hop link for satellite-underwater communication

Shaohua Zhou, Deqiang Ding, Jingyu Wang, Ding Yang, Shandong Yuan

Proceedings Volume 13153, 131530V (2024) https://doi.org/10.1117/12.3018258

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In this paper, a radio frequency-underwater wireless optical communication (RF-UWOC) dual-hop decode-and forward (DF) relaying link for Satellite-Underwater communication is proposed to extend the communication distance based on RF and underwater optical wireless communication technology. The communication system consists of satellite, surface relay platform and underwater destination node, where the RF communication technology is adopted for satellite surface relay link, which is modeled as Rician fading distributions considering rain and snow attenuation. Surface relay platform and underwater destination node adopt underwater wireless optical communication (UWOC, and the link is modeled as Gamma-Gamma fading distributions considering sea water absorption and scattering. The closed-form mathematical expression of the RF link channel models and the UWOC link channel models is derived and analyzed, the outage probability (OP) and average bit error rate (ABER) performance of the satellite-underwater (RF-UWOC) dual-hop decode-and-forward (DF) relaying communication link is investigated and simulated.

Proceedings Article | 15 December 2022 Paper

Design and research of high speed underwater RoFSO link

Shaohua Zhou, Deqiang Ding, Jingyu Wang, Ding Yang, Cheng Bai

Proceedings Volume 12478, 124783D (2022) https://doi.org/10.1117/12.2654821

KEYWORDS: Ocean optics, Turbulence, Modulation, Signal to noise ratio, Frequency doubling crystals, Radio optics, Wireless communications

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This paper designs and analysis a high speed underwater radio over free space optical (RoFSO) communication link for underwater wireless optical communication application, which mainly consist of 1064nm light source, modulator, periodically poled lithium niobate (PPLN) frequency doubling crystal, optical transceiver antenna and detector. The PPLN frequency doubling crystal is applied to generate 532nm light wave signals with high speed modulation format based on second harmonic generation theory, when a high speed modulated 1064 nm continuous-wave laser signal is inputted. The communication performance of transmitting BPSK modulation format signal of the underwater RoFSO is investigated in Gamma-Gamma ocean turbulence fading channel distribution. The expression of bit error rate (BER) and average outage probability are derived and the results of both theoretical analysis and numerical simulations are obtained by Matlab software in ocean turbulence. The results of numerical simulations show that the communication performance of underwater RoFSO is better than the common OOK direct modulation UWOC system.

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