Affiliations: [a] Pak Red Crescent Medical and Dental College, Lahore, Pakistan | [b] Sheikh Zaid Medical College, Lahore, Pakistan | [c] GMU Medical College, Jammu and Kashmir | [d] Green Templeton College, University of Oxford, Oxford, UK
Correspondence:
[*]
Corresponding author: Aitzaz Bin Sulltan Rai, Green Templeton College, University of Oxford, Oxford, UK. E-mail:{[email protected]
Abstract: With the development in science, methods of communication are also improved,
replacing old ones with new advanced ways in an attempt to make data
transfer more secure,
safer for health, and time as well as cost efficient.
One of such
methods is Visible Light Communication, as the name implies data is
transferred through a light equipment such as incandescent or florescent
bulb having speed of 10 Kb/s or LEDs approaching speed of 500 Mb/s [1]. VLC
uses visible light between 384 and 789 THz [2,3]. Though range is limitation
of VLC, however data transfer up-to distance of 1 to 2 km although at lower
transfer rate has been reached. The VLC system comprises of light source like LED and receiver equipment,
however, with advancement, now LEDs are used for both sending and receiving
data. LED remains on all the time, and there is no change in brightness
level during the whole process, making it safe for eyes.
Currently, VLC system is facing some
serious technical challenges before it could be applied in daily life.
