Wi-Fi is a technology that has taken a primary place in our daily lives.
Before Wi-Fi, there was Bluetooth, a revolutionary technology (at the time) but was limited to only a few meters of connectivity and with a relatively poor speed. Today, a new technology appears: The Li-Fi.
The Li-Fi or the ‘Light Fidelity’ uses LED lighting for the transmission of content (audio, video, photo, etc.) to a computer, smartphone or tablet device, which is a revolution if we consider the speed with which light transmits data unlike the electromagnetic spectrum that Wi-Fi uses.
How does it work?
It is a high speed, bi-directional, networked and mobile communication of data using light. LiFi is comprised of multiple light bulbs that form a wireless network, offering a substantially similar user experience to Wi-Fi except using the light spectrum.
This technology uses a transmitter as well as a receiver. The radio waves are replaced by totally harmless light spectra that can be used in all circumstances.
Li-Fi has already shown undeniable advantages in practice which are also safer for the user. In addition to being faster (100 times faster than traditional Wi-Fi), Li-Fi does not create electromagnetic waves that may interfere with other devices or harm the health of people around.
The absence of harmful waves also opens the way to the “indoor” use of this technology, particularly in the medical, aeronautics or defense sectors.
However, the Li-Fi remains limited in terms of scope since the light spectrum used cannot pass through the walls which ensures the separating of data but also limits the range when used indoors.
Nevertheless the challenges remain since the miniaturization of this technology to integrate it into all the connected objects is not easy, but scientists expect to arrive there before the end of 2018.
Kenza, Consultant, Leyton France