Problem statement: In this study, optical wireless communication system using visible light is studied for indoor application. Approach: The process started with the calculation on performance of single source white LED where received power, channel DC gain and quality of data transmission (SNR computation) are identified. Through the simulation results, the SNR performance is directly proportional to angle of incident but inversely proportional with the distance. Results: The result at minimum SNR, which is 15dB, the maximum distance, is recorded at 3.0785 m while the other parameter which is angle of incident is recorded at 56.989°. Conclusion: A better performance is needed to improve the reliability of the system because based on the analytical modelling; it proves that this system is expected as indoor communication for next generation.

Rapid development of solid-state lighting has expanded the function of white Light Emitting Diode (LED) for wireless optical communication. In this paper, the analytical studies are carried out to analyze the performance of visible light communication (VLC) system in a modern lighting layout.Begins with the calculation of received power and indoor channel gain, the performance of data transmission is calculated. The modern lighting layout using 5 number of LED lights is applied to illuminate an office area with 5m × 5m × 2.2m (length × width × height). From the analytical results, the Signal to Noise Ratio(SNR) performance is proportional with the position and number of LED lights. The additional LED light at the center of the area makes the light uniformly distributed in the range of SNR from 56 (dB) to 51 (dB). The performance of this system proves that is applicable to be implemented in the modern lighting layout design.

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.