Li-Fi – 100 times faster than Wi-Fi
Li-Fi, a wireless technology that transmits data using light rather than radio bands, has just been tested outside a lab for the first time, and it’s really, really fast.
Li-Fi, which was invented by the University of Edinburgh’s Harald Haas back in 2011, uses visible light communication (VLC) and what is essentially a very advanced form of Morse code: an LED flicks on and off at speeds imperceptible to the naked eye which can be used to write and transmit information in binary code.
For the first time ever, scientists have trialled the technology outside of a lab and found that they can transmit data at 1GB per second, which is 100 times faster than Wi-Fi. What this means is that the technology has the potential to completely change the way we use the internet.
They have currently designed a smart lighting solution for an industrial environment where the data communication is done through light. We are also doing a pilot project with a private client where we are setting up a Li-Fi network to access the Internet in their office space.’
One the advantages of Li-Fi other than its speed is its security. Light cannot pass through walls which makes the network more secure. It also means there is less interference from other devices.
There is still some way to go before Li-Fi becomes our standard method of data transmission, partly because office and build layouts are not designed for it.
But Li-Fi’s inventor, Harald Haas, is optimistic. In a 2011 TED talk, he envisioned a world where everyone had access to the Internet via LED light bulbs fitted with a small microchip.
See you next time..
Pete - Precision