Li-Fi, the technology to use LED bulbs to replace the Wi-Fi network tested in the real world

After years of existence in the concept of theory, Li-Fi finally - the technology of using light to combine infrared light to create an alternative Wi-Fi Internet has been Philips Lightning real-world experiment.

This Dutch electronics giant has actually tested the Li-Fi technology in a laboratory in Paris (France) to see how it works in the real world.

To set up a Li-Fi network, the light devices you want to have network coverage must be connected to the Internet cable. Inside the bulb fixture with wires, including a modem that converts the data packets and adjusts the LEDs for data transmission. A USB plugs into the laptop as a receiver and transmitter and uses an infrared LED to send feedback back to the built-in receiver in the luminaire.

The light is only transmitted in a straight line, does not penetrate the wall or furniture, so it will minimize the interference between devices. Compared to radio waves, Li-Fi is actually more useful when utilizing tight spaces, two computers in the same room, opposite each other can use the same bandwidth.

Li-Fi, the technology to use LED bulbs to replace the Wi-Fi network tested in the real world Picture 1

But that is only in theory, the fact that Li-Fi is still not a perfect substitute for Wi-Fi. Because if the light is weak, it will affect the connection between the transmitter and receiver. At the same time, this new technology also requires a USB to be plugged into the computer while Wi-Fi is already built-in. We can't even walk around the office with a smartphone that wants to keep a consistent data connection.

Li-Fi, the technology to use LED bulbs to replace the Wi-Fi network tested in the real world Picture 2

Currently, wifi technology is increasingly improved on bandwidth usage, especially when 5G network with practical benefits is about to be deployed. And the question is whether Li-Fi will ever be applied in the real world.

With this experiment, Philips Lightning wishes to find out if Li-Fi is a viable technology. Perhaps, for those with high security needs, Li-Fi is also considered a remarkable choice.

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