At the Mobile World Congress (MWC) we saw a demo of a wireless network that gives us data through light bulbs.

When the Internet started, connecting a cable to a modem and then to a telephone outlet was the norm. Then the routers began, the fiber apart from the telephone network, and the WiFi. Perhaps the latter has been the greatest innovation: a way to enjoy the Internet without having to connect a cable. The problem? The enormous saturation of the current WiFi network spectrum, for which many companies are looking for a way to provide data to navigate through other methods and means as original as the one proposed by LiFi.

LiFi, the WiFi of the future

LED lighting is used to illuminate homes, buildings, companies, businesses, etc. The Lifi technology, contraction of Light Fidelity, aims to use this type of lighting to transmit information to any device that is perceptible to the LED light or that is within the area of ​​incidence of this, through changes in light intensity. Therefore, lifi technology consists of transmitting information through LED light that could reach 10 Gbps speed.

How do you get it? Because the light turns on and off up to 10 billion times per second, which causes the information to be transformed into binary form (0 and 1); This feature is used to send information through the wave of light. Therefore, when using it in a house, we would have the Internet transmitted by light bulbs placed on ceilings and rooms, creating our own network. And the startup PureLiFi has brought to the Mobile World Congress a demonstration of its technology, as we see in the video of the ADSLZone colleagues.

 

Mobile phone cases and USB connectors

As we can see, the bulbs transmit the waves that are collected in a base. If we are talking about the Internet on a laptop, it is necessary to connect a USB that serves as a transmitter so that the base sends the waves and we have Internet in the device. In the case of a smartphone, the principle is the same, only that thereceiver is integrated in a cover that we put on the mobile.

For now, and although the connections with this technology have proven to be stable, there are drawbacks such as that it depends on the light bulbs being turned on -the Wifi is not, because it goes through a router-, and that outdoors it is not currently viable because natural light interferes with the process. But it is clear that it is a very interesting technology that, once polished and eliminating elements such as the intermediate base – that the light comes directly from the bulbs to the devices -, it would seem like the WiFi of the future.

Article taken from the newspaper AS

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