Li-Fi Could Replace Wi-Fi – Provide Internet Connectivity 100 Times Faster Using Light Bulb

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Gone are the days when individuals and companies had to pull their hair out over slow Wi-Fi connectivity. Li-Fi, a new internet connectivity technique using the visible light spectrum has already been tested in an office. The technology requires only a light bulb, a photo detector and internet to function.


Prof. Harold Haas, who is the head of Telecommunication Dept. In Edinburgh University first coined the term Li-Fi and displayed its capabilities at 2011 TED conference. He used an LED lamp at the conference to stream video. The Li-Fi has practically been able to transfer at a speed of 1 GB per second and theoretically it is capable of transferring up to 224 GB per second.

The benefits of Li-Fi include using the technology inside aircrafts, hospitals and other areas where radio signal interference can cause problems. Also their is a shortage of radio signal spectrum but the visible spectrum has 10,000 times more availability.

The obvious pitfalls are that Li-Fi cannot be used outdoors in sunlight and it cannot move through walls. But this is undoubtedly a significant step in internet connectivity and future research might render those issues toothless.

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Soumyajit DasMazumdar

Soumyajit is an SAP technical consultant with a flair for writing. An avid blog reader, he started off with a free WordPress blog and slowly moved to his own personal news and blog site. Apart from writing he loves reading books, playing table tennis and long bike trips. He is currently trying to learn playing guitar and failing miserably.

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