Li-Fi, a super-fast alternative to Wi-Fi is finally getting in real world with its massive speed. It can provide upto 1 Gbps, which is 100 times faster than current Wi-Fi. So one can download a full HD movie within few seconds.
What is Li-Fi?
Light Fidelity or Li-Fi is a wireless technology allows data to be sent at high speed using visible light communication (VLC). It uses IEEE standard 802.11 a/e for its wireless communication.
Li-Fi allows user great security on local networks as light can not pass through walls provides less interference between devices. The technology offers great speed of 224 Gbps in perfect Lab conditions. Li-Fi could be much more cheaper than Wi-Fi.
Li-Fi allows user great security on local networks as light can not pass through walls provides less interference between devices. The technology offers great speed of 224 Gbps in perfect Lab conditions. Li-Fi could be much more cheaper than Wi-Fi.
Disadvantages:
- As the system uses light spectrum to send and receive data, the range of the system is very limited as light can not pass through walls.
- The reflected light from walls can downgrade the performance of this system which can affect its reliability.
The inventor of Li-Fi, Professor Harald Hass from university of Edinburgh, has claimed that in the future every LED light bulb could be used as ultra-fast alternative to Wi-Fi. Hass said, "In the future we will not only have 14 billion light bulbs, we may have 14 billion Li-Fis deployed worldwide for a cleaner, greener and more bright future." It is difficult to create a whole new infrastructure for Li-Fi so it will be a challenge to integrate current systems to make it compatible with Li-Fi.