6- https://doi.org/10.1109/gcce50665.2020.9291709
Underwater Visible Light Communication Using Phase-Shift Keying and Rolling-shutter Effect
- Oct 13, 2020
- Ritsuki Hamagami +3 more
Abstract
We propose an underwater visible light communication (VLC) system for use in drones. The transmitter modulates a message using phase-shift keying (PSK) and emits the signal as LED fast-blinking light. The receiver captures this pattern with a CMOS image sensor using a rolling-shutter effect, and demodulates PSK. In existing VLC systems, rolling-shutter effect is used to transmit baseband signals; this system transmits a passband signal tolerant of low-frequency optical interference noise. System performance was evaluated in test-tank experiments. Findings suggested that the VLC system with PSK outperformed that using on-off keying when noise frequency did not exceed carrier frequency.
- # Visible Light Communication System
- # Visible Light Communication
- # Rolling-shutter Effect
- # Phase-shift Keying
- # Test-tank Experiments
- # Underwater Visible Light Communication System
- # CMOS Image
- # Noise Frequency
- # Low-frequency Interference
- # Light Communication System
