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XU Hui, XIE Zhibin, LU Xiaoyan, LIU Mindong, ZHANG Zhenkai, LI Si. Peak-to-average ratio suppression algorithm for DCO-OFDM underwater visible light communication system[J]. LASER TECHNOLOGY, 2022, 46(4): 525-531. DOI: 10.7510/jgjs.issn.1001-3806.2022.04.014
Citation: XU Hui, XIE Zhibin, LU Xiaoyan, LIU Mindong, ZHANG Zhenkai, LI Si. Peak-to-average ratio suppression algorithm for DCO-OFDM underwater visible light communication system[J]. LASER TECHNOLOGY, 2022, 46(4): 525-531. DOI: 10.7510/jgjs.issn.1001-3806.2022.04.014
shu

Peak-to-average ratio suppression algorithm for DCO-OFDM underwater visible light communication system

  • 1.

    Ocean College, Jiangsu University of Science and Technology, Zhenjiang 212003, China

  • 2.

    Zhenjiang Key Laboratory of Intelligent Ocean Information Perception and Transmission Technology, Jiangsu University of Science and Technology, Zhenjiang 212003, China

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  • Received Date: June 01, 2021
  • Revised Date: January 03, 2022
  • Published Date: July 24, 2022
    Graphical Abstract
    • Abstract
  • In order to solve the peak-to-average power ratio (PAPR) problem in the direct current biased optical orthogonal frequency division multiplexing (DCO-OFDM) underwater visible light communication system, a joint PAPR suppression algorithm based on Vandermonde-like matrix (VLM) precoding and improved adaptive scaling was adopted. Firstly, the frequency domain signal was preceded by VLM to reduce the autocorrelation of the signal, and then the time domain signal was adaptively scaled to reduce the nonlinear distortion caused by light-emitting diode (LED). Finally, the PAPR suppression effect of the system was realized. The results show that when the complementary commulative distribution function was 10-3, the PAPR of the joint algorithm was reduced by 3.2dB compared with the original system. Therefore, this research is helpful to suppress the PAPR of DCO-OFDM underwater visible light communication system.
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    • References (24)
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