LiFi vs WiFi

Posted By : Palak Chawla | 31-Oct-2022

There are two technologies that are used to send and receive data wirelessly. First one is Wi-Fi (wireless fidelity) and second is Li-Fi (light fidelity).Li-Fi uses LED lights and light signals to transmit and receive the data, whereas Wi-Fi uses routers and radio frequency (RF) waves to do so.

The key distinctions between LiFi and WiFi can be studied under following heads: 

  • Data Transfer Rates - Li-fi has speed roughly around 1 Gbps. Wifi speed ranges from 150 Mbps to a maximum of 2 GB per second.
  • Privacy - Since the walls block light, data transfer is more secure in transmission through Li-fi whereas for wi-fi the radio waves cannot be stopped by walls, so we must use additional methods to transfer data in a safe manner.
  • Bandwidth - Li-fi has access to limitless bandwidth while for Wi-fi a finite amount of bandwidth is available.
  • Power Consumption - Li-fi has lower power consumption in comparisoon with Wi-fi.

Advantages of Li-fi:

  • Because of the use of Visible Light Communication technology and highly effective LED bulbs, the price is low.
  • Increased speed of transmission due to the rapid movement of light.
  • It has the ability to cross salt water, and the ability to work effectively in densely populated areas.
  • It prevents unauthorised access due to the opaque walls ability to block out the visible light.

Disadvantages of Li-fi:

  • The light source must always be available in order to enable network access.
  • Because of the limited signal range emitted by light bulbs, users are forced to remain at the same place.

Advantages of Wi-fi:

  • It allows users to access local networks and the internet without having physical connections with them.
  • It is simple to implement because all we need is to contact an ISP to get an internet connection and a WiFi router to get an access point.

Disadvantages of Wi-fi:

  • WiFi networks are well-known for being unsafe. Broad signal range is primarily responsible for lack of security.
  • This is because there are still a lot of external interferences that can affect the radio frequencies. Weak signals, poor reception, and even connection loss are all results of it.

About Author

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Palak Chawla

Palak is working as a Front-End developer and has basic knowledge in Angular and Bootstrap. She is a quick learner and always ready to learn new technologies.

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