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Proceedings Paper

Capacity analyze of WDM indoor visible light communication based on LED for standard illumination
Author(s): Heqing Huang; Yi Tang; Lu Cui; Qingwei Zhu; Jiabin Luo
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Paper Abstract

For indoor visible light communication (VLC) systems aim to achieve communication and illumination simultaneously, the channel capacity are significantly affected by illumination demands in actual scenarios. To enhance the system performance, the wavelength division multiplex (WDM) technique can be introduced. In this letter, we analyzed the demands of illuminance and chromaticity’s influence on indoor WDM visible light communication system based on color light emitting diodes (LED). The spectra distribution, crosstalk and noise of WDM VLC system were analyzed and the relative optimal total channel capacity was obtained by optimizing the number of sub-channels and their intensity at standard illumination scenario. It’s shown that by applying WDM technique, the total channel capacity of LED based VLC system can be about 4 times than the situation of single sub-channel, even with indoor illumination constraints. What’s more, the system performance can be improved by adjusting appropriate number of sub-channels and their intensity accordingly.

Paper Details

Date Published: 5 August 2015
PDF: 7 pages
Proc. SPIE 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, 96190U (5 August 2015); doi: 10.1117/12.2193501
Show Author Affiliations
Heqing Huang, Beijing Institute of Technology (China)
Ministry of Education of China (China)
Yi Tang, Beijing Institute of Technology (China)
Ministry of Education of China (China)
Lu Cui, Beijing Institute of Technology (China)
Ministry of Education of China (China)
Qingwei Zhu, Beijing Institute of Technology (China)
Ministry of Education of China (China)
Jiabin Luo, Beijing Institute of Technology (China)
Ministry of Education of China (China)


Published in SPIE Proceedings Vol. 9619:
2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing
Yi Dong; Chao Lu; Jian Wu; Zhaohui Li, Editor(s)

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