Real-Time Audio Transmission Using Visible Light Communication

RF technologies has facilitated communication including audio, images, video and data transmission. However, the RF spectrum is getting increasingly crowded, and alternative methods to transfer data need to be explored. In this paper, software-hardware co-design is implemented to design the audio data synchronization and transmission for an optical-through-air transceiver system. Besides audio transmission, the performance of the VLC system is verified through testing serial data transmission and text transmission. The experimental results show that the VLC system can achieve up to 4 Mb/s data rate using OOK modulation with red light. This system provides a practical step-by-step guidance for setting up a VLC system for data transmission.