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Flickering lamps can induce head. The
But if the flickering happens millions of times a second far
faster the eye can see or the brain
then it
transa data. This is the idea behind Li-Fi, or Light Fidelity. The term Li-
Fi" 29 user ersity
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of Edinburgh Professor Harald Haas in a 2011 TED Talk, where he introduced the idea of “wireless data
from every light.” Today, Li-Fi has developed into a wireless technology that allows data to be sent at high
speeds, working with lighéemitting diode LEDs), an increasibeti popular way to illuminate public
areas
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Using LED lights as networking devices for data transmission, Li-Fi bas several advantages over Wi-
Fi (Wireless Fidelity). First Li-Fi alistus For Theater security on local networks, as light cannot penetrate
covered, access to a Li-Fi channel is cibles devices inside the room, ensuring that signals cannot,
hacked from remote locations. Also, Li-Fi can operate in electrőmagnetic sensitive areas such as alterati
hospitals, and nuclear power plants, for light does not interfere with radio signals. The most
Significant advantage of Li-Fi is speed. Researchers have achieved speeds of 224 of Jhanks per
second in lab
conditions, much faster than Wi-Fi broadband.
Egigabit
How could Li-Fi enrich daily life? Anywhere there is LED lighting, there is an opportunity for Li-Fi
enabled applications. Li-Fi-enabled street lights could provide internet access to mobile phones, making
walking at night safer. The LED bulbs in traffic lights could provide drivers with weather conditions and
traffic updates. Li-Fi could help with tourism by providing an easier access to local information. At home,
smart light could also provide parents with solutions to their children's Internet addiction: Just turn off the
lights and you've turned off their access.
When 14 billion light bulbs mean 14 billion potential transmitters of wireless data, a cleaner, a greener,
and even a brighter future is on the way.
hieves
