Visible Light Communication - Seminar Reports|PPT|PDF|DOC|Presentation




Nowadays, a lot of researchers are working on the development of light-emitting diode (LED) lighting system. The LED lighting system can achieve lower power consumption and has a longer life-time compared to the fluorescent lamp system.


In this project, the characteristic of short transient time in turning the light on/off processes was further investigated. A high-speed wireless communication system, which is embedded in our LED lighting system, was built. The duplex communication system consists of both downlink and uplink media through different frequencies of lights.


Several experiments were conducted in the visible light communication system. In this communication system, off-the-self components were taken part in building the driver circuit and the performance of the system was evaluated, such as, data transmission rate, data transmission distance and the field of view of the transmitter.





In this paper, transmission of MP3 music was demonstrated by using warm-White LED transmitter. Not limit to this, multiple source signals simultaneously in different frequency bands were transmitted through the RGB LED circuitry, and the signals were recovered successfully. This demonstrates the feasibility studies of our design in signals broadcasting.

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