Design of Voice Communication System Based on Visible Light
The visible light communication is a combination of LED lighting and wireless communication technology. In which, the LED visible light voice communication system is proposed due to the disadvantage of low security and weak ability to against interference in traditional wireless voice communication systems. It combines RS code with PSK modulation and uses CREE-XPE-Q5 white light LED and the SI-PIN photodiode respectively as transmitter and receiver to communicate. The experiment has realized the rate of 300K within 1m distance with single 1W LED and validates that the system without the noise interference has a good effect on real-time voice transmission.
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