These licensing opportunities are currently available from the University of Edinburgh for potential industry partners seeking to license Li-Fi technologies:
This Li-Fi technology offers a new transmission medium for high speed communications, significantly increasing the data rate capacity of optical wireless communication, while re-using LED lighting infrastructure as the transmission channel.
This Edinburgh technology has the ability to convert a signal transmitted over an LED based communication link from a bipolar signal into a unipolar signal. By applying a pulse shaping filter to the bipolar signal, and then transforming the negative values of the pulse shaped bipolar signal into a unipolar signal, the net effect is a significant enhancement in data rate transmission. The method can be readily integrated into LED lighting infrastructure, using low cost front end devices to implement a range of Li-Fi applications.
This Li-Fi technology combines spectral efficiency with power efficiency and allows very high speed data communications to be reliably achieved using LED lighting infrastructure as the transmission channel.
A special configuration and encoding algorithm is applied to data frames occupying a single frequency band, before simultaneously transmitting the frames over a visible light communication link, and successfully separating them again at the transmitter by use of symmetry properties in the decoder. The novel method applies to any intensity modulated transmission medium where direct detection is employed, and acts to reduce the effects of inter-symbol interference and to increase spectral efficiency.