The video transmission system based on VLC using a 4x4
LED array is depicted in Figure 1, consisting of a transmitter
and receiver subsystem. Both the transmitter and receiver are
comprised of three blocks, as shown in this figure. At the
transmission side, the FPGA (Stream Capture & Process Block)
receives the real-time video stream captured by the camera and
sends it to the LCD (Stream Display Block), which is the
original video stream. Meanwhile, it modulates and processes
the data stream, and sends it to the LED driver (Stream
Transmit Block). The modulated visible light stream is then
transmitted through free-space and received by the commercial
Photodiode (PD) in series with a high-speed analog-to-digital
converter (ADC) (Stream Receive Block). The ADC will pass
the converted digital data stream to the FPGA (Stream process
Block). The data stream will be demodulated and sent back to
the LCD (Stream Display Block), which is the restored video
stream.
The video transmission system based on VLC using a 4x4
LED array is depicted in Figure 1, consisting of a transmitter
and receiver subsystem. Both the transmitter and receiver are
comprised of three blocks, as shown in this figure. At the
transmission side, the FPGA (Stream Capture & Process Block)
receives the real-time video stream captured by the camera and
sends it to the LCD (Stream Display Block), which is the
original video stream. Meanwhile, it modulates and processes
the data stream, and sends it to the LED driver (Stream
Transmit Block). The modulated visible light stream is then
transmitted through free-space and received by the commercial
Photodiode (PD) in series with a high-speed analog-to-digital
converter (ADC) (Stream Receive Block). The ADC will pass
the converted digital data stream to the FPGA (Stream process
Block). The data stream will be demodulated and sent back to
the LCD (Stream Display Block), which is the restored video
stream.
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