Effects of LED lighting degradation and junction temperature variation on the performance of visible light communication

This paper studies the effects on the performance of a visible light communication link induced by LED lighting degradation and junction temperature variation. A theoretical analysis of the signal-to-noise ratio (SNR) degradation due to LED degradation over time is first carried out. Then simulation...

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Published in2012 International Conference on Systems and Informatics (ICSAI2012) pp. 1596 - 1600
Main Authors Chao Ma, Hongming Zhang, Kaiyun Cui, Minyu Yao, Zhengyuan Xu
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2012
Subjects
Degradation
junction temperature variation
Junctions
LED degradation
Light emitting diodes
Lighting
Optical receivers
Optical transmitters
Signal to noise ratio
SNR degradation
visible light communication
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Summary:This paper studies the effects on the performance of a visible light communication link induced by LED lighting degradation and junction temperature variation. A theoretical analysis of the signal-to-noise ratio (SNR) degradation due to LED degradation over time is first carried out. Then simulation results are shown to reveal the SNR degradation. An empirical model for junction temperature variation is used to predict the output light spectrum shift, from which the SNR degradation is theoretically derived and simulated along with junction temperature variation.
ISBN:9781467301985
1467301981
DOI:10.1109/ICSAI.2012.6223345