difference between wifi and lifi

Wi-Fi Vs Li-Fi

Do you know Taiwan has the fastest Internet in the world? and Telenor Norway has the fastest mobile network in the world, according to Ookla, which analyses the speeds from tests conducted by mobile customers.

There are many facets that are we are unaware of the fastest network we have. Well, Do you know what is Li-Fi?

Wheater Wi-Fi is fastest or Li-Fi, let's compare these two networks, but well we have to know the proper meaning of both the network so we can differentiate between two networks.

Let's us know what is Li-Fi? as most of us unknown Li-Fi technology .

Li-Fi is wireless communication technology that utilizes light to transmit data and position between devices. The term was first introduced by Harald Haas during a 2011 TEDGlobal talk in Edinburgh.

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Now let us know What is Wi-Fi? as most of us aware of the technology

Wi-Fi is the name of a wireless networking technology that uses radio waves to provide wireless high-speed Internet and network connections. A common misconception is that the term Wi-Fi is short for "wireless fidelity," however this is not the case. Wi-Fi is simply a trademarked phrase that means IEEE 802.11x...

Let's Compare them

• 54-250 Mbps Speed
• 25-100 meters range
• 802.11b IEEE standard 
• Point to Multipoint network
• 2.4 GHz

VS

• 1-1.5 Gbps speed
• 10 meters range
• 802.15.7 IEEE standard
• Point to point network
• 100 times of Tera Hz

Disadvantage of Li-Fi 

• internet cannot be used without a light source. ...
• Because it uses visible light, and light cannot penetrate walls, the signal's range is limited by physical barriers.
• Other sources of light may interfere with the signal.

Conclusion

When looking at the comparisons between WiFi and LiFi, it would be very difficult to choose one over the other as both have their own merits – and their own disadvantages. That is why a different mindset needs to be adopted and look at these pieces of technology in a different way.
A big misconception about LiFi systems is that it was created to replace WiFi altogether. Considering that most of the existing infrastructure has already been built to accommodate RF technology, it would be very costly and tedious to replace all of that infrastructure to give way to a newer technology. For this reason, LiFi needs to be looked at as a complementary technology that aims to improve the performance of the existing technology and provide relief to the already congested radio spectrum used to provide WiFi connections.