Experimental Demonstration of Event-based Optical Camera Communication in Long-Range Outdoor Environment
This work addresses the challenge of long-range outdoor optical communication for applications like IoT or surveillance, representing a significant advance with concrete performance improvements.
The authors tackled the problem of achieving reliable optical camera communication over long distances outdoors by proposing a robust demodulation scheme using an event-based vision sensor, resulting in a bit error rate below 10^-3 at 200m with 60kbps and 400m with 30kbps.
We propose a robust demodulation scheme for optical camera communication systems using an event-based vision sensor, combining OOK with toggle demodulation and a digital phase-locked loop. This is the first report to achieve a $\mathrm{BER} < 10^{-3}$ at 200m-60kbps and 400m-30kbps in outdoor experiments.