“Light is not so much something that reveals, as it is itself the revelation.” James Turrell
A few years ago, as LED technology began to move from the Laboratory to the production line, it was acknowledged that there was significant potential for the use of LED light sources for a much wider spectrum of application than just illumination. The secret lies in the ability of the LED to be microscopically controlled.
Professor Harald Haas gave his noted TED Global talk “Wireless Data from Every Light Bulb” in 2011, where the concept of light enabled communications in the digital age was expounded, and where the term LiFi is said to have been coined.
Based on data from leading telecommunications players, connected devices (laptop, smartphone, tablet etc) and their users are demanding ever more data, and demand is growing at exponential rates. However, there are challenges with interference and limits to the capability, and data density when using radio frequency technology such as Wi-Fi and Cellular.
Connected devices are forecast to increase to 20 Billion IoT devices by the year 2020. Impending demand on the networks is predicted to rapidly exceed the ability of the existing networks to adapt and deliver.
LiFi is the logical next step for the mobile data revolution – using LED light, modulating at a level far beyond the limits of human perception to transmit and receive vast quantities of data – at the speed of LIGHT.
The future is bright. The future is illuminated by LED.
LiFi is a category of Optical Wireless Communications (OWC). OWC includes infra-red and ultra-violet communications as well as visible light. However, LiFi is unique in that the same light energy used for illumination may also be used for communication.
LiFi allows for data to be transmitted by modulating the intensity of light, which is then received by a photo-sensitive detector. The light signal is then demodulated into electronic form. This modulation is performed in such a way that it is not perceptible to the human eye.
Integrated LED and Access Point showing beam footprint
Radio frequency communication requires radio circuits, antennas and complex receivers, whereas LiFi is much simpler and uses direct modulation methods similar to those used in low-cost infrared communications devices such as remote control units. LED light bulbs have high intensities and therefore can achieve very large data rates.
Ubi-Tech Ltd and pureLiFi team up
Here at Ubi-Tech Ltd we pride ourselves on staying at the very forefront of telecommunications technology. We are continually researching new and emerging technologies and trends to help us to better position the support we give to our students and clients, so we became acutely aware of the potential within the LiFi concept at an early stage. Having followed the research for some time, we realised that the strongest exponent of this new concept and emerging technology was the company that invented and has continued to pioneer the technology, pureLiFi.
Ubi-Tech have formed a strong strategic association with pureLiFi, two like-minded organisations looking to the future, to the challenges and to the potential answers for the questions not asked yet.
As the technologies underpinning LiFi mature and develop, there will be a need to incorporate new techniques and new practices into your network and installation planning, and a new dimension to be applied to the development and deployment of network enabled facilities. Ubi-Tech and pureLiFi are ready for the challenges ahead, are you?