• Laser & Optoelectronics Progress
  • Vol. 59, Issue 7, 0706006 (2022)
Yang Cao and Chao Luo*
Author Affiliations
  • School of Electrical and Electronic Engineering, Chongqing University of Technology, Chongqing 401320, China
  • show less
    DOI: 10.3788/LOP202259.0706006 Cite this Article Set citation alerts
    Yang Cao, Chao Luo. Research on PAPR Reduction Method in Visible Light Polar-OFDM Communication System[J]. Laser & Optoelectronics Progress, 2022, 59(7): 0706006 Copy Citation Text show less
    Encoding process and selection of correction bit
    Fig. 1. Encoding process and selection of correction bit
    Selection process of amendent bit
    Fig. 2. Selection process of amendent bit
    System architecture model
    Fig. 3. System architecture model
    VLC system channel model
    Fig. 4. VLC system channel model
    Performance comparison of PAPR. (a) n=256, N=64; (b) n=1024, N=256
    Fig. 5. Performance comparison of PAPR. (a) n=256, N=64; (b) n=1024, N=256
    Simulation of error performance. (a) n=256, N=64; (b) n=1024, N=256
    Fig. 6. Simulation of error performance. (a) n=256, N=64; (b) n=1024, N=256
    Comparison of PAPR inhibition performance of each scheme
    Fig. 7. Comparison of PAPR inhibition performance of each scheme
    BLER performance of each scheme
    Fig. 8. BLER performance of each scheme
    Experimental parameterValue
    Half power point half angle φ1/240
    Lambertian emission seriesm m1.5684
    LED transmit power /W12
    Optical filter gain1
    Lens refractive index1.5
    Receiving field of view70
    Indoor space size /(m×m×m)5×5×3
    Vertical distance between light source and receiving plane /m2.15
    Table 1. Channel simulation experiment parameters
    ParameterOrdinary OFDMPro a=8, bestPro a=8, worsePro a=32, bestPro a=32, worse
    Code length256 or 1024
    Number of correction bitsN/A883232
    Quality of Δi and sub-channelN/ABestWorseBestWorse
    Table 2. Simulation experiment parameters of PAPR performance under different code lengths
    GroupOrdinary OFDMPro a=8, bestPro a=8, worstPro a=32, bestPro a=32, worst
    Code length256 or 1024
    Bit rate

    128/256

    and

    512/1024

    (128+8)/256

    and

    (512+8)/1024

    (128+8)/256

    and

    (512+8)/1024

    (128+32)/256

    and

    (512+5)/1024

    (128+32)/256

    and

    (512+32)/1024

    Table 3. Simulation experiment parameters of error performance
    Scheme nameCode lengthCode rateNumber of candidate signals
    Pro PC-OFDM5121/2a=32a=16a=8
    PC-SLM 15121/2q=32q=16q=8
    PC-SLM 25121/2q=32q=16q=8
    Ordinary-OFDM5121/2N/AN/AN/A
    Table 4. Simulation experiment parameters for PAPR performance comparison of different schemes
    Scheme nameCode lengthCode rateNumber of candidate signals
    Pro PC-OFDM5121/4, 1/2, 3/4a=16
    PC-SLM 15121/4, 1/2, 3/4q=16
    PC-SLM 25121/4, 1/2, 3/4q=16
    Ordinary-OFDM5121/4, 1/2, 3/4N/A
    Table 5. Simulation experiment parameters for BELR performance of each scheme
    Yang Cao, Chao Luo. Research on PAPR Reduction Method in Visible Light Polar-OFDM Communication System[J]. Laser & Optoelectronics Progress, 2022, 59(7): 0706006
    Download Citation