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.
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Press Releases
- Fraunhofer HHI successfully completes the project “Installation of VLC technology on the Island of Mainau”
- Fraunhofer HHI takes stock: Project Phase A concluded with the installation of VLC technology on Mainau Island
- First real-time test of Li-Fi utilization for the industrial Internet of Things
- Fraunhofer HHI presents the latest Li-Fi research at the first Global LiFi Congress in Paris
- First Li-Fi-product with technology from Fraunhofer HHI launched in Japan
- Classroom in Stuttgart with Li-Fi of Fraunhofer HHI opened
- Hannover Messe: Fraunhofer HHI shows an optical LiFi solution for reliable wireless communication
- Fraunhofer HHI and Red Bull Media House work together to develop new VLC technology applications
- Fraunhofer HHI at ECOC 2015, 27.09.-01.10.15, Valencia, Spain
- Data communication with light – Fraunhofer HHI provides VLC technology for a conference room on Mainau Island (Lake Constance)