Latest Li-fi Research News

The latest Li-Fi Research and Development News from Professor Harald Haas.

Light-Fidelity (LiFi) takes visible light communication (VLC) further by using light emitting diodes (LEDs) to realise fully networked wireless systems.

Our latest research on load balancing in hybrid WiFi/LiFi networks has shown an interesting result: There is a direct relationship between WiFi throughput and LiFi throughput. Specifically, as the LiFi throughput increases, so does the WiFi throughput, and vice versa.

WiFi / LiFi throughput

We have received the Jack Neubauer Memorial Award for our paper "Bit Error Probability of SM-MIMO Over Generalized Fading Channels",  as the Best System paper, published in the IEEE Transactions on Vehicular Technology in March 2012.

Jack Neubauer Memorial Award of IEEE Vehicular Technology Society, September 2015

Based on Maxwell’s theory of electromagnetics, the light and radio propagation follow the same rules of physics. However, the optical waves have significantly smaller wavelength compared to radio waves. This is particularly important when an approximation of Maxwell’s theory is required.

Edinburgh Balmoral Clock Tower

We have developed a new algorithm that avoids the typical 50% spectral efficiency loss in visible light communications when the LED is driven close to the turn-on voltage. This is an important breakthrough because the new algorithm enables energy-efficient Li-Fi links and dimming close zero.


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