Fraunhofer demonstrates point-to-multi-point Li-Fi

Fraunhofer demonstrates point-to-multi-point Li-Fi

Technology News |
By Julien Happich

Li-Fi is claimed to be inherently more secure and stable than other forms of wireless data transmissions, since the direct optical path is not impacted by the number of users, and unlike radio waves, the infrared light beams are blocked by walls.

The optical wireless communication developed at Fraunhofer IPMS is also more energy efficient, needing only 15 percent of the energy required by conventional wireless technologies per transmitted user data byte while being up to 10 times faster thanks to a data rate of 1Gigabit per second at insignificant bit error rates (<10-9).

Until recently, it was not possible for several users to operate in the same spot due to inter-module interferences within the same link, but Fraunhofer IPMS has solved this issue and will demonstrate how its technology allows for point-to-multi-point communication.

At the exhibition, Fraunhofer IPMS will present a Li-Fi HotSpot as a prototype for optical wireless communication for distances up to 10 meters, as well as its “GigaDock” technology for smaller distances (with bandwidths of up to 12.5 Gigabits per second). GigaDock aims to supplement or replace stationary cable connections in highly automated production environments. The driverless send and receive module combines an optical transceiver and a protocol controller with a Gigabit-Ethernet interface, making for easy integration into company networks.

Li-Fi HotSpot and Li-Fi GigaDock are available as customer evaluation kits. 

Visit Fraunhofer IPMS at


Related article:

Industrial Li-Fi to deliver 12.5Gbit/s

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