Table 1 Summary of system parameters
From: Simultaneous transmission of audio and video signals using visible light communications
Parameters | Values |
|---|---|
Semi-angle at half power of LEDs | 50° |
Red LED power | 50 mW |
White LED power | 100 mW |
Audio signal transmitter | 4 × 5 white LED using S/PDIF |
Video signal transmitter | 5 × 5 red LED using PWM |
ADC | 192-kHz sampling rate, 24 bits |
PWM frequency (period) | 15 MHz (66.7 ns) |
Audio receiver | 15-Mb/s PD with a sensitivity of -24 dBm |
Video receiver | 50-Mb/s PD with a sensitivity of -17.5 dBm |
Transmitter module spacing | 10 cm |
Transmission span | 50 cm (without lens) |