Influence of LED Nonlinearity on Performance of Visible Light Communication Systems

doi:10.3788/LOP57.150603

	Influence of LED Nonlinearity on Performance of Visible Light Communication Systems
	Jia Kejun 1; Lu Hao 1; Yang Boran 1; Du Wenfei 1; Hao Li 2
刊名	LASER & OPTOELECTRONICS PROGRESS
	2020-08-01
卷号	57 期号:15
关键词	visible light communication optical orthogonal frequency division multiplexing nonlinearity light emitting diode clipping noise nonlinear distortion
ISSN号	1006-4125
DOI	10.3788/LOP57.150603
英文摘要	The error vector magnitude (EVM) and bit error rate (BER) performance of visible light communication (VLC) system will be deteriorated by the nonlinear characteristic of light emitting diode (LED). In this paper, the principle of optical orthogonal frequency division multiplexing (O-OFDM) VLC system based on nonlinear LED is introduced, and the HER expression of the system is derived. It is proposed to divide the LED nonlinear distortion into nonlinear distortion in the working area and clipping distortion outside the working area. For the clipping distortion, the subcarrier attenuation factor of the load information is calculated according to Bussgang theory, and then the clipping noise variance superimposed on the subcarrier is obtained. The nonlinear distortion in the working area is the equivalent to the driving signal plus the nonlinear distortion noise, and use the total average power of the nonlinear LED output deviates from the ideal linear signal minus direct current power as the noise variance. The influence of nonlinear distortion on constellation, EVM, and HER is analyzed by Monte Carlo simulation.
WOS研究方向	Engineering ; Optics
语种	中文
出版者	SHANGHAI INST OPTICS & FINE MECHANICS, CHINESE ACAD SCIENCE
WOS记录号	WOS:000557863300035
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/155633]
专题	计算机与通信学院
作者单位	1.Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou 730050, Gansu, Peoples R China; 2.Southwest Jiaotong Univ, Sch Informat Sci & Technol, Chengdu 610031, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Jia Kejun,Lu Hao,Yang Boran,et al. Influence of LED Nonlinearity on Performance of Visible Light Communication Systems[J]. LASER & OPTOELECTRONICS PROGRESS,2020,57(15).
APA	Jia Kejun,Lu Hao,Yang Boran,Du Wenfei,&Hao Li.(2020).Influence of LED Nonlinearity on Performance of Visible Light Communication Systems.LASER & OPTOELECTRONICS PROGRESS,57(15).
MLA	Jia Kejun,et al."Influence of LED Nonlinearity on Performance of Visible Light Communication Systems".LASER & OPTOELECTRONICS PROGRESS 57.15(2020).