Faster than 224 Gigabits per second.
Able to leap 10, 000 radio frequencies in a single bound.
What is Li-Fi?
Simply put, it’s the use of light waves to send binary data.
Video applications, audio, and web data sent across a room using everyday, regular old LED light.
The Technical Stuff:
Li-Fi is a Visible Light Communications (VLC) system used for data transmission. VLC systems need only two components: a photodiode equipped device and a light source equipped with a signal processing unit. A VLC light source could be a simple LED bulb. LED is a semiconductor light source which means that LED bulbs can amplify light intensity and switch rapidly. These modulations and rapid switches are undetectable by the human eye. In fact, the amount of light used to transmit data need not even be visible. The modulations are interpreted and converted into an electrical current by the photodiode device. After demodulating the signal, the current is converted into binary data. VLC systems are bi-directional, meaning that the photodiode device can send data back to the light source for uplink. There is future potential for RGB LED’s to send a wider variety of signals than traditional white LED’s.
Will we see Li-Fi infrastructure replace the current kings of communication?
Unlikely, for the simple reason that light needs a clear path to transmit data.
Light cannot penetrate walls or people. Still, this technology will find the right use cases.
We may see Li-Fi implemented in public spaces using overhead LED’s very soon.
Curious about Wi-Fi, Bluetooth LE, and Li-Fi? Chat with a specialist.