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Laser & Optoelectronics Progress, Volume. 56, Issue 24, 240601(2019)

Digital Pre-Distortion Technique for Orthogonal Frequency Division Multiplexing Based LED Nonlinear Channel

Xiaoshuang Liu1, Jianfeng Li1、*, Zhitong Huang2, Jianke Li1, and Lihui Sun1
Author Affiliations
  • 1College of Information Technology, Hebei University of Economics and Business, Shijiazhuang, Hebei 0 50061, China
  • 2State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
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    References (20)
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    Figures & Tables(9)
    Block diagrams of Wiener model and Hammerstein model

    Fig. 1. Block diagrams of Wiener model and Hammerstein model

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    Block diagram of DPD based OFDM system

    Fig. 2. Block diagram of DPD based OFDM system

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    Experimental setup of visible light communication

    Fig. 3. Experimental setup of visible light communication

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    Relationship between input current and output power for LED

    Fig. 4. Relationship between input current and output power for LED

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    Measured frequency response of LED channel

    Fig. 5. Measured frequency response of LED channel

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    BER performance of DCO-OFDM (BI=0.3) with different MI

    Fig. 6. BER performance of DCO-OFDM (BI=0.3) with different MI

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    Power spectrum density of signals. (a) Power spectrum density for x^; (b) power spectrum density of yDPD; (c) power spectrum density of <math id="Mml21" xmlns:mml="http://www.w3.

    Fig. 7. Power spectrum density of signals. (a) Power spectrum density for x^; (b) power spectrum density of yDPD; (c) power spectrum density of Download full size

    DCO-OFDM signal in time domain

    Fig. 8. DCO-OFDM signal in time domain

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    Convergence characteristic of error function

    Fig. 9. Convergence characteristic of error function

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    Xiaoshuang Liu, Jianfeng Li, Zhitong Huang, Jianke Li, Lihui Sun. Digital Pre-Distortion Technique for Orthogonal Frequency Division Multiplexing Based LED Nonlinear Channel[J]. Laser & Optoelectronics Progress, 2019, 56(24): 240601

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: May. 23, 2019

    Accepted: Jun. 6, 2019

    Published Online: Nov. 26, 2019

    The Author Email: Li Jianfeng (lijianfeng555@126.com)

    DOI:10.3788/LOP56.240601

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology