Demodulation of Nonlinear Visible Light Communication Based on Gaussian Mixture Model

Yahao Ren; Jianfeng Li; Xiaoshuang Liu; Hongjun Kang; Ye Liu

doi:10.3788/LOP221831

Laser & Optoelectronics Progress, Volume. 60, Issue 15, 1506008(2023)

Demodulation of Nonlinear Visible Light Communication Based on Gaussian Mixture Model

Yahao Ren, Jianfeng Li^*, Xiaoshuang Liu, Hongjun Kang, and Ye Liu

Author Affiliations

Information Technology College, Hebei University of Economics and Business, Shijiazhuang 050061, Hebei, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(6)

Fig. 1. DFT-S-OFDM system based on Gaussian mixture model

Download full size

Fig. 2. 16QAM constellation of received single carrier signal with $β = 3$ and $E_{b (o p t)} / N_{0} = 30 d B$

Download full size

Fig. 3. Performance of 16QAM DFT-S-OFDM system in nonlinear channel. (a) BER performance of 16QAM DFT-S-OFDM system with different $β$ values; (b) 16QAM GMM cluster demodulation constellation with $β = 5 d B$ , $E_{b (o p t)} / N_{0} = 16.8 d B$ at Ⅰ in Fig. 3(a); (c) 16QAM GMM cluster demodulation constellation with $β = 4 d B$ , $E_{b (o p t)} / N_{0} = 18 d B$ at Ⅱ in Fig. 3(a); (d) 16QAM GMM cluster demodulation constellation with $β = 3 d B$ , $E_{b (o p t)} / N_{0} = 21 d B$ at Ⅲ in Fig. 3(a)

Download full size

Fig. 4. Performance of DFT-S-OFDM system in nonlinear channel. (a) BER performance of 32QAM DFT-S-OFDM system with different $β$ values; (b) BER performance of 64QAM DFT-S-OFDM system with different $β$ values

Download full size

Fig. 5. SNR gain of DFT-S-OFDM system under different modulation orders

Download full size

Table 1. Simulation parameters of DFT-S-OFDM system based on GMM cluster demodulation
View table
Table 1. Simulation parameters of DFT-S-OFDM system based on GMM cluster demodulation
Simulation parameter Number
DFT/IDFT points 511
FFT/IFFT points 1024
LED modulation bandwidth /MHz 100
DFT-S-OFDM symbol 400
Modulation format 16/32/64QAM
a （nonlinear factor） 2
D（direct current）/dB 11

Tools

Get Citation

Copy Citation Text

Yahao Ren, Jianfeng Li, Xiaoshuang Liu, Hongjun Kang, Ye Liu. Demodulation of Nonlinear Visible Light Communication Based on Gaussian Mixture Model[J]. Laser & Optoelectronics Progress, 2023, 60(15): 1506008

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites