Journal of Computer Science

The Comparison of Experimental and Analytical Study of the Gaussian IntensityDistribution for Light Emitting Diodes Beam

Mohammad Syuhaimi Ab-Rahman, Luqman Al-Hakim Azizan, Harry Ramza and Zulkifli Musa

DOI : 10.3844/jcssp.2012.913.919

Journal of Computer Science

Volume 8, Issue 6

Pages 913-919

Abstract

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.

Copyright

© 2012 Mohammad Syuhaimi Ab-Rahman, Luqman Al-Hakim Azizan, Harry Ramza and Zulkifli Musa. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.