Volume 14 Issue 3
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Chinese Optics  > 2021  >  14(3): 516-527.
XU Xian-ying, YUE Dian-wu. Orthogonal frequency division multiplexing modulation techniques in visible light communication[J]. Chinese Optics, 2021, 14(3): 516-527. doi: 10.37188/CO.2020-0051
Citation: XU Xian-ying, YUE Dian-wu. Orthogonal frequency division multiplexing modulation techniques in visible light communication[J]. Chinese Optics, 2021, 14(3): 516-527. doi: 10.37188/CO.2020-0051
shu

Orthogonal frequency division multiplexing modulation techniques in visible light communication

  • 1.

    College of Information Science and Technology, Dalian Maritime University, Dalian 116026, China

  • 2.

    College of Electrical Engineering, Dalian University of Science and Technology, Dalian 116052, China

Funds:  Supported by National Natural Science Foundation of China (No. 61371091); Research Project on Postgraduate Education and Teaching Reform of Dalian Maritime University (No. YJG2019205)
More Information
  • Corresponding author: dwyue@dlmu.edu.cn
  • Received Date: 30 Mar 2020
  • Rev Recd Date: 26 May 2020
    • Available Online: 17 Apr 2021
  • Publish Date: 01 May 2021
    Abstract
  • With its unique advantages, Visible Light Communication (VLC) can compensate for limitations in radio frequency communication, allowing it to become a recent avid topic of research. Orthogonal Frequency Division Multiplexing (OFDM) has been widely used in VLC due to its high rate of data transfer and frequency selective fading resistance. We compare the performance of several OFDM modulation techniques in VLC, including unipolar schemes, enhanced schemes and hybrid schemes based on discrete Fourier transformation, as well as optical OFDM systems based on Hartley transform and LED index modulation. We perform these comparisons in terms of energy efficiency, spectral efficiency, bit error rate, and algorithm complexity. The principles of some kinds of optical OFDM systems are firstly illustrated and their spectrum efficiencies are theoretically analyzed and compared. We also research and analysis the improved design of receivers in optical OFDM systems. The challenges and upcoming research of OFDM systems in VLC are summarized. The research in this paper can provide a research reference and propose more efficient unipolar modulation schemes to further improve the spectral efficiency and reliability of optical OFDM systems.

     

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