Mobile Back- and Fronthauling

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 on higher area capacity, reduced latency and a larger number of users, numerous small cells in addition to the already existing macro cells will be deployed. Economic front- and backhaul solutions are therefore needed. Through rate adaptation, LED-based optical links are more robust and offer higher throughput, besides easy alignment and immunity against electromagnetic interference.

Fraunhofer HHI provides high speed OWC links with field-proven and 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)