Roger Martinez;Francisco Eugenio Lopez Giraldo;Jose Martin Luna Rivera;Juan David Navarro Restrepo;Juan David Rojas Usuga
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Evaluation of Solar Panel Bandwidth for RGB Channels in Visible Light Communication
Visible light communication (VLC) is an emerging technology that uses white light-emitting diodes (LEDs) to transmit information and provide illumination simultaneously. Recently, solar panels have been proposed as optical detectors at the receiver to retrieve data from light signals. However, very few studies have addressed the behavior of the solar panel bandwidth at different wavelengths. In this paper, we propose the design of a low-complexity VLC system with a red-green-blue (RGB) LED transmitter and a solar panel receiver whose bandwidth is modified using a parallel load resistor. We define a set of experiments to validate the performance of the VLC system using an RGB LED source and a solar panel as the optical receiver. The VLC systems performance is evaluated across various baud rates (4800, 9600, 19200, 38400, 57600, and 115200 bits/s) at a free space transmission distance of less than 105 cm. Our measurements indicate that the solar panels highest bandwidth is achieved with the red channel, yielding a maximum data rate of 57600 bits/s at a bit error rate (BER) of 5 103. These results are analyzed and discussed to highlight the benefits and limitations of using solar panels for VLC purposes.
期刊介绍:
IEEE Latin America Transactions (IEEE LATAM) is an interdisciplinary journal focused on the dissemination of original and quality research papers / review articles in Spanish and Portuguese of emerging topics in three main areas: Computing, Electric Energy and Electronics. Some of the sub-areas of the journal are, but not limited to: Automatic control, communications, instrumentation, artificial intelligence, power and industrial electronics, fault diagnosis and detection, transportation electrification, internet of things, electrical machines, circuits and systems, biomedicine and biomedical / haptic applications, secure communications, robotics, sensors and actuators, computer networks, smart grids, among others.