Light Fidelity (Li-Fi) refers to 5G Visible Light Communication systems using light-emitting diodes as a medium to
high-speed communication in a similar manner as Wi-Fi. In the days where internet has become a major demand, people are in a search
for Wi-Fi hotspots. Li-Fi or New Life of data communication is a better alternative to Wi-Fi in wireless communication. This paper
proposes a survey on Li-Fi Technology. The Li-fi technology was invented by Professor Harald Hass of University of Edinburgh. Li-Fi
has more capacity in terms of bandwidth in visible region therefore it does not poke its nose in other communications which uses radio
frequency range, without taking its frequency bands. Li-Fi has thousand times greater speed than Wi-Fi and provides security as the
visible light is unable to penetrate through the walls, which propose a new era of wireless communication. The concept of Li-Fi is data
communication on fast flickering of light which is not detected by human eye but it is focused on photo detector which converts the onoff
state into binary digital data. It has gained a huge popularity in two years of its invention. Such technology has brought not only
greener but safer and cheaper future of communication.
Published In : IJCSN Journal Volume 6, Issue 6
Date of Publication : December 2017
Pages : 787-791
Figures :06
Tables : 01
Saniya Salim Sayed : She is pursuing B.E.
in Computer Engineering at Sinhgad Academy of Engineering,
Pune(at present in the second year).An active debator, orator who
won various debate competitions.
Nidhi Ghanshyam Agrawal : : She is pursuing B.E. in Computer
Engineering at Sinhgad Academy of Engineering, Pune (at present in
the second year).Ready to accept challenges and is a multi-tasking
girl.
LED (Light Emitting Diode),Wi-Fi (Wireless Fidelity),Li-Fi(Light Fidelity),VLC(Visible Light Communication ),RF(Radio
Frequency)
In this paper, a survey on Li-Fi technology has been
discussed. From this 5G Li-Fi technology, we can see that
the Li-Fi is an advanced approach on design, having the
best design of internet by largely reducing the size of
device which transfers data, implementation- by means of
having more than 1.4 million light bulbs all over the
world if replaced by such LEDS can provide feasible
access, and last but not the least enormous applications
compared to any other networks in various fields which
cannot be imagined by on use networks. Although there
are some disadvantages, but can be eliminated by careful
further research.
[1] http://hackaday.com/2015/12/11/hackaday-explains-lifi-visible-light-communications/
[2] http://www.youtube.com/watch?v=gjqSgsKbagQ
[3] http://www.dvice.com/archives/2012/08/lifi_ten_ways
_i.php
[4] http://www.smithsonianmag.com/innovation/li-fireplace-wi-fi-180957320/
