Review on Li-Fi Technology

  • Rajarshi Roy Chaudhuri
  • Kaustav Dutta
  • Archisman Saha
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 166)


With advent of various communication technologies one can access the whole world at one go. The impact of internet on our day to day life has been so extensive that it is impossible to think of a day without it. It has become a fundamental requirement in our daily lives. Survey reports show that nearly 46 % of homes throughout the world have access to the internet. And the percentage is growing each day. With such a high demand there has been a looming Radio Frequency spectrum crisis, which paved the way of the invention of a new technology:-LI-FI. LI-FI, acronym of light fidelity, is a new wireless technology which has the ability to provide high speed internet connection within localized environment. Till today we are familiar with WI-FI which uses radio spectrum for communication. Even though it gives a speed of nearly 150 Mbps (as per IEEE802.11n), it isn’t sufficient to satisfy all users. On the other hand LI-FI uses spectrum which comprises a wide range of frequencies, from the infrared through visible, down to the ultraviolet spectrum for communication which has the ability to produce a theoretical speed of 10 Gbps. It is not only confined to light-emitting diode (LED) or laser technology or to any specific receiving technique, LI-FI is a framework for all those technologies which provides new ways to all present as well as future services or applications.


Radio Frequency Signal Visible Light Communication Visible Light Spectrum High Speed Internet Connection Digital Modulation Scheme 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer India 2015

Authors and Affiliations

  • Rajarshi Roy Chaudhuri
    • 1
  • Kaustav Dutta
    • 1
  • Archisman Saha
    • 1
  1. 1.Department of Electronics and Communication EngineeringInstitute of Engineering and ManagementKolkataIndia

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