The demand for wireless communication networks within buildings will further increase during the coming years. The optical light communication offers an alternative, because it simultaneously uses LED-based light sources as data transmitters, which leads to a significant extension of network capacity while maintaining the mobility expected by the users. The optical data transfer avoids all electromagnetic interference with radio networks and is by definition radio-free.
Data rates of higher than 1 Gbit/s and latencies lower than 2 ms are possible with conventional LEDs, which allows for unproblematic broadband real-time video streaming in highest quality (2/4/8K). With only a few additional components, the standard LED light can be turned into a high performance optical WiFi transmitter. A special modulator turns the light diodes on and off in fast rhythm – this is how the digital information is transferred.