文章基本信息

标题：The Comparison of Experimental and Analytical Study of the Gaussian IntensityDistribution for Light Emitting Diodes Beam
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作者：Ab-Rahman, Mohammad Syuhaimi ; Azizan, Luqman Al-Hakim ; Ramza, Harry 等
期刊名称：Journal of Computer Science
印刷版ISSN：1549-3636
出版年度：2012
卷号：8
期号：6
页码：913-919
DOI：10.3844/jcssp.2012.913.919
出版社：Science Publications
摘要：Problem statement: Wireless communication using white Light Emitting Diodes (LEDs) is the latest research field for next-generation communication. This study studies the comparison of Gaussian intensity distribution of the white LED using experimental and analytical method. The white LEDs are conducted to transmit an audio signal to the receiver. The receiver circuit consist of solar cell connected to the speaker to recover the audio signal. From the comparison of experimental and analytical data, the Gaussian plot of experimental data is steeper than the analytical data, meaning that the LED has small-divergence beam. Conclusion/Recommendations: The output voltage of experimental works decrease exponentially with the distance whiles the Full Width Half Maximum (FWHM) value increase exponentially with the distance. The gradual increment and decrement of the analytical signal can be applicable to visible light communication implementation as such light source can cover wide area for signal transmission.
关键词：Wireless communication; white LED; solar cell; visible light; Gaussian intensity distribution; Full Width Half Maximum (FWHM)