Indoor visible light communication denoising system combining iterative variational mode decomposition and multiple frequency shift keying modulation

Yang, Chunyong1; Hu, Xin1; Ni, Wenjun1; Shum, Perry Ping2

2024-04-10

10.1364/AO.518836

APPLIED OPTICS   影响因子和分区

1559-128X

2155-3165

To reduce noise in indoor visible light communication (IVLC), the Pearson correlation coefficient difference (PCCD), a denoising system combining iterative variational mode decomposition (IVMD) and multiple frequency shift keying modulation (MFSK), is proposed. Compared with VMD, the method can directly determine the optimal number of VMD modes and solve the issue of VMD penalty factor selection to some extent. The simulation results show that, when the input SNRs vary from - 15 to - 8 dB, the proposed method can improve the output SNRs of the 2FSK signal by an average of 15.5 dB and reduce the BER by 55.8%, improve the output SNR of the 4FSK signal by an average of 13 dB, and reduce the BER by 54.4%. The proposed method can also effectively suppress noise interference in real IVLC experiments at a distance of 1 m. In addition, the IVMD-MFSK denoising system can be applied to denoise all frequency-modulated signals with high applicability. (c) 2024 Optica Publishing Group

SCI ; EI

英语

其他

National Natural Science Foundation of China["62105373","62171487"] ; Natural Science Foundation of Hubei Province[2023AFC012] ; Knowledge Innovation Program of Wuhan-Shuguang Project[2022010801020408] ; Fundamental Research Funds for the Central Universities of the South-Central Minzu University[CZZ22001]

Optics

Optics

WOS:001230460200002

Optica Publishing Group

PHYSICS

Web of Science

1.South Cent Minzu Univ, Coll Elect & Informat Engn, Hubei Key Lab Intelligent Wireless Commun, Wuhan 430074, Hubei, Peoples R China
2.Southern Univ Sci & Technol, Coll Engn, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Yang, Chunyong,Hu, Xin,Ni, Wenjun,et al. Indoor visible light communication denoising system combining iterative variational mode decomposition and multiple frequency shift keying modulation[J]. APPLIED OPTICS,2024,63(11).

Yang, Chunyong,Hu, Xin,Ni, Wenjun,&Shum, Perry Ping.(2024).Indoor visible light communication denoising system combining iterative variational mode decomposition and multiple frequency shift keying modulation.APPLIED OPTICS,63(11).

Yang, Chunyong,et al."Indoor visible light communication denoising system combining iterative variational mode decomposition and multiple frequency shift keying modulation".APPLIED OPTICS 63.11(2024).