Optimal Bias Current Design for Visible Light Communications Based on LED Electrical-Thermal Effect

In visible light communication (VLC) system, the intensity of light emitting diode (LED) is modulated to transmit data. As a transmitter, the design of LED should consider the performance of lighting and communication simulataneously. However, the output flux of LED is jointly determined by the elec...

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Autores principales:	Yu Mu, Chao Wang, Xiao-xiao Du, Yi-jun Zhu
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Visible light communication (VLC) electrothermal light flux bias current BER experiment Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/6df6bf4bc7b644a188cf0d3f09e428c3
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id	oai:doaj.org-article:6df6bf4bc7b644a188cf0d3f09e428c3
record_format	dspace
spelling	oai:doaj.org-article:6df6bf4bc7b644a188cf0d3f09e428c32021-11-18T00:00:10ZOptimal Bias Current Design for Visible Light Communications Based on LED Electrical-Thermal Effect1943-065510.1109/JPHOT.2021.3123350https://doaj.org/article/6df6bf4bc7b644a188cf0d3f09e428c32021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9591343/https://doaj.org/toc/1943-0655In visible light communication (VLC) system, the intensity of light emitting diode (LED) is modulated to transmit data. As a transmitter, the design of LED should consider the performance of lighting and communication simulataneously. However, the output flux of LED is jointly determined by the electrical and thermal characteristics, and is concave-related to the forward bias current. In order to maximize the use of LEDs, in this paper, the mutual restriction of optical, electrical and thermal mechanisms for the LED systems are considered, and a dynamic photoelectrothermal model is established. Then, the optimal bias current is presented according to the electrical-thermal relationship of LED. Modulating LED at this bias current can maximize the communication performance without sacrificing the light flux. Finally, a BER experiment to verify the optimal communication performance is conducted at this bias current.Yu MuChao WangXiao-xiao DuYi-jun ZhuIEEEarticleVisible light communication (VLC)electrothermallight fluxbias currentBER experimentApplied optics. PhotonicsTA1501-1820Optics. LightQC350-467ENIEEE Photonics Journal, Vol 13, Iss 6, Pp 1-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Visible light communication (VLC) electrothermal light flux bias current BER experiment Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
spellingShingle	Visible light communication (VLC) electrothermal light flux bias current BER experiment Applied optics. Photonics TA1501-1820 Optics. Light QC350-467 Yu Mu Chao Wang Xiao-xiao Du Yi-jun Zhu Optimal Bias Current Design for Visible Light Communications Based on LED Electrical-Thermal Effect
description	In visible light communication (VLC) system, the intensity of light emitting diode (LED) is modulated to transmit data. As a transmitter, the design of LED should consider the performance of lighting and communication simulataneously. However, the output flux of LED is jointly determined by the electrical and thermal characteristics, and is concave-related to the forward bias current. In order to maximize the use of LEDs, in this paper, the mutual restriction of optical, electrical and thermal mechanisms for the LED systems are considered, and a dynamic photoelectrothermal model is established. Then, the optimal bias current is presented according to the electrical-thermal relationship of LED. Modulating LED at this bias current can maximize the communication performance without sacrificing the light flux. Finally, a BER experiment to verify the optimal communication performance is conducted at this bias current.
format	article
author	Yu Mu Chao Wang Xiao-xiao Du Yi-jun Zhu
author_facet	Yu Mu Chao Wang Xiao-xiao Du Yi-jun Zhu
author_sort	Yu Mu
title	Optimal Bias Current Design for Visible Light Communications Based on LED Electrical-Thermal Effect
title_short	Optimal Bias Current Design for Visible Light Communications Based on LED Electrical-Thermal Effect
title_full	Optimal Bias Current Design for Visible Light Communications Based on LED Electrical-Thermal Effect
title_fullStr	Optimal Bias Current Design for Visible Light Communications Based on LED Electrical-Thermal Effect
title_full_unstemmed	Optimal Bias Current Design for Visible Light Communications Based on LED Electrical-Thermal Effect
title_sort	optimal bias current design for visible light communications based on led electrical-thermal effect
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/6df6bf4bc7b644a188cf0d3f09e428c3
work_keys_str_mv	AT yumu optimalbiascurrentdesignforvisiblelightcommunicationsbasedonledelectricalthermaleffect AT chaowang optimalbiascurrentdesignforvisiblelightcommunicationsbasedonledelectricalthermaleffect AT xiaoxiaodu optimalbiascurrentdesignforvisiblelightcommunicationsbasedonledelectricalthermaleffect AT yijunzhu optimalbiascurrentdesignforvisiblelightcommunicationsbasedonledelectricalthermaleffect
_version_	1718425288471216128

Optimal Bias Current Design for Visible Light Communications Based on LED Electrical-Thermal Effect

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