Outdoor LiFi Point-to-Point Link

At a Glance

5G as the next generation of mobile communication will enable new applications like the smart city, autonomous driving and the networked society. In order to fulfill 5G requirements, economic wireless front- and backhaul solutions are needed. Fraunhofer HHI provides high speed OWC links with field proven uninterrupted availability in challenging outdoor conditions.


  • Infrared LED based
  • Data rates:
    • 1000 Mbit/s over 100 m
    • 500 Mbit/s over 200 m
  • > 99.99% availability in bad weather
  • Bidirectional data exchange
  • Dynamic rate adaption
  • Low latency (< 2 ms)
  • Power-over-Ethernet (PoE)


  • Low cost optical wireless link based on infrared LEDs
  • Improved link robustness due to rate adaption
  • No active tracking needed
  • Easy alignment
  • Relieve millimeter wave spectrum for other applications


  • Connected streetlights
  • Vehicle-to-X communication
  • Wireless-to-the-home
  • Mobile backhaul