Globally, Wi-Fi has been used for years to access and transmit data. But more often than not, Wi-Fi and their modems have elicited unsavory remarks when more users have logged on.
Li-Fi is now poised to transform for the better the scenario of data transfer and access.
What is Li-Fi???
- Li-Fi is a bidirectional, high-speed, fully-networked wireless communications technology.
- In simple words, it can be considered a light-based Wi-Fi. Where radio waves are deployed to transmit data and information in Wi-Fi, Li-Fi uses light waves, which is faster and acts as a better tool for communication.
- In Li-Fi, LED lamps fitted with transceivers can light a room and receive information too.
- Unlike Wi-Fi, which can hold limited access points only, Li-Fi can have multiple.
- Considered a Visible Light Communications (VLC) system that runs wireless communications at extremely high speeds, Li-Wi uses common household LED (light-emitting diode) bulbs to transfer data, ensuring speeds of up to 224 gigabits per second.
How Li-Fi is generated??
- A LED bulb is a semiconductor light source.
- Consequently, the constant current of electricity supplied to a LED bulb can be dimmed and dipped up and down at very high speeds without being detected by the human eye.
- For instance, data can be fed into a LED light bulb via signal-processing technology.
- Thereafter, this data is embedded in its beam and sent back at rapid speeds to the photo-detector or photodiode. 5. Miniscule changes in the LED bulb’s swift dimming are converted by the receiver into electrical signals.
- Finally, the signal is reconverted into a binary data stream recognisable as web, video or audio applications running on Internet-enabled devices.