How many times have you been watching a Netflix movie and it kept lagging and spiking? Well, according to computer experts, no more of that annoyance. Instead of an array of wi-fi signals beaming through our apartments and houses, we will have something much more simple, so it seems. And it has to do with something you see every day: a LED bulb.
So, forget about the dozens of wi-fi signals beaming through your apartments and houses. A simple LED light will provide all the speed and signal strength you need to download as many as a hundred movies in ultra HD resolution. In a matter of a single second.
Li-Fi is the name, remember it
The name of this new technological marvel is Li-Fi, coming from LED technology, of course. It works by transmitting information via visible light. And the best thing about this technology, besides the fact that it is much, much faster than Wi-fi, is that light is all around us. Our homes, our offices, streets, and other public places are illuminated practically 24/7. All of these light sources will be harnessed to provide a stable, lighting fast and secure internet connection.
Experts cite that LiFi technology work by sending information using the visible light spectrum. This spectrum is almost 10.000 times as large as the radio wave spectrum, meaning that it can support much more information. This allows engineers to construct devices with 100 times the bandwidth of wifi devices. Furthermore, data transmission in Lifi devices will climb to a staggering 224 Gigabytes per second! Sounds like wifi internet is on the way to become a thing of the past soon. But is it?
Disadvantages of Lifi
You may have figured out already that to use Lifi you will have to be exposed directly to the source of light. Visible light does not penetrate walls, obviously. Therefore, you will not be able to use a computer or your telephone in the dark. Also, you will always need to be in the immediate vicinity to a light source (a LED bulb) so that you can have an internet connection. This fact practically keeps Wifi technology alive for the years to come. Wifi penetrates walls and does not demand a direct, „visible“ connection between the source and the recipient.
Furthermore, Lifi is described as less reliable because it depends on visible light. This feature will surely be upgraded with time. Also, the installation charges for Lifi are higher, but this is also expected to change over time.
Undoubtedly, Internet connectivity will be one of the main features of quality of life in the future. Lifi will bring new and exciting breakthroughs like great speed, of course, but we believe this will not cause the death of Wifi technology. Wifi, Lifi, and other future technologies will be competing for their place in the market and people will be free to choose which one of these suits their needs best.