It may sound quite unbelievable for some but indeed, at the Fraunhofer Henrich Hertz Institute in Germany, a team of researchers has successfully produced a speedy 3Gbps Li-Fi network with the help of LED bulbs in their laboratory. In a more real environment, the same system is capable to generate at-least 500 Mbps of internet velocity. In couple of preceding years, the acute concept of visible light communication (VLC) or more commonly known as Li-Fi has received a tremendous amount of consideration from researchers all around the globe. LED’s are made up of more solid-state electronic materials which means that they can be controlled quite similarly in ways like other electronic devices can be controlled – something that cannot be done with fluorescent or incandescent bulbs.
Rather than using a vacillating Wi-Fi transmitter, Li-Fi swing around a LED bulb and on the end where it is received, a photo detector is utilized instead of an antenna. However, the press release from Fraunhofer is completely without description of any kind of details, apart from mentioning the big 3Gbps bit. In order to attain the speed of 3Gbps, according to the researchers at Fraunhofer, they have invented a way by using which they can grab 180 MHZ of bandwidth from an LED bulb – not just using only one LED, but three LEDS of different colors. On the other hand, when the same technique was utilized in the outside world on a trade fair, the method was still enable to give at-least a 500MBps instead of 3Gbps – that is still quite rocketing type speed.
With this being said, Li-Fi has quite a lot of pros as compared to Wi-Fi. Just to begin relating some of them, consider you have a LED bulb shining in your home and what will happen is that Li-Fi could turn that LED bulb into a networking transmitter. By the asset of working in such higher frequencies (hundreds of THz), it has quite smoothly passed the oppressive barrels within the wireless spectrum crunch and the authoritarian licensing. For this very same cause, Li-Fi can be easily utilized in loud RF noise places such as trade fairs, malls, conventions, as well as non RF places like airplanes, some governmental places and hospitals.
According to further clarifications being given by the German researchers of FHHI, Li-FI way of communication can be very beneficial when it comes to privacy, due to the reason that your signals can be easily tracked by any nearby spying eye or with obscure materials – but since one can understand that the “con” column should have to be filled as well, however not so much heavier then Wi-Fi hopefully.As we move towards a more advanced era of IT and digital communication, world is now awaiting for the influx of the first ever-commercial LED bulb specifically designed for Li-FI to hit the markets. Some startups have started their journey towards this creation of epic technological proportion, including with few research groups as well but till now, however, no one seems to have a definite strategy as to what way should be adopted to give the final commercial look.