Li-fi – The cheaper and faster networking technology alternative to Wi-fi


I know that feeling when you find out a working open Wi-Fi on the go. It is like getting your long time lover back after waiting for a long time. And you may feel like, ‘what the hell is my ISP (Internet Service Provider) doing’ on realizing that your connection is slower than a snail. Today, every one of us prefers to get things done faster, and this also applies to our want of a faster networking technology which can make us online almost instantly. It is not possible to maintain the good speed with your broadband connection as your ISP may go on maintenance or something crazy might happen, which keeps happening every now and then and interrupts you from accessing the web in stunning speed. But in the upcoming years, you won’t face this issue. Why? Well, that’s because, Li-fi is out here. Here, I am sharing some important facts about Li-fi, the cheaper and faster networking technology which is going to change the way people connect to the world.

1 What Exactly is Li-fi?

Li-fi is a bidirectional data transmission technology that makes use of visible light as the medium of propagation. Prof. Harold Hass was the man who followed his inner calling to make this weird idea a reality. We can also use Infrared and near Ultraviolet rays as the medium. When this technology becomes a reality, the remarkable feature that will allure everyone is the whopping data transfer speed it has. Researchers revealed that Li-fi is about 100 times faster than a typical Wi-Fi networking technology (To be accurate, the speed of Li-fi is 224 Gigabyte per second). It can solve the bandwidth limitation problems and can contain more data.

Li-fi; The Cheaper and Faster networking technology Alternative to Wi-fi

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2 History of Li-fi

As already said, Prof. Harold Hass from University of Edinburgh in United Kingdom is widely known as the founder of Li-fi. Li-fi comes under another technology called VLC or Visual Light Communication. In it, we make use of any part of the visible light region in electromagnetic spectrum to transmit data. There was a program going on at Edinburgh University from 2010 January to 2012 January, named D- Light project. Harold was deeply into the project and ended up finding the technology of Li-fi. In his 2011 Global TED Talk, he demonstrated the technology in front of everyone and that helped his company (PureLi-fi, formerly PureVLC) to kickstart the business. PureLifi is the company, which manufacturers Li-fi enabled products. Like W3C (World Wide Web Consortium), companies and industries joined together in October 2011 to form Li-fi consortium. And then, it all began. Many companies came forward to make Li-fi enabled products and the researches are still going on.

History of Li-fi

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3 Benefits of Li-fi


We all know that typical wireless network or Wi-Fi uses radio waves to transfer data. The worst part of using radio waves is the lack of security. As radio waves can penetrate through walls, even your neighbor can hack into your network with right tools and skills. Li-fi has no such issue because the rays or ways stay inside your house or room. And, it can easily be used in electromagnetic sensitive areas like nuclear power plants, hospitals, airplane cabins and also in petrol pumps.

Benefits of Li-fi

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4 No Need to Establish Resources

Just think, what is the only thing needed to make a working Li-fi connection. Yeah, you guessed it right. It’s the visible light from many LED lamps. For a Wi-Fi connection, we need to establish things like modem, splitter, etc. But you are already using bulbs in your home or office. The only thing you have to do for getting the benefits of a Li-fi connection is to replace your existing lamps with LED.

No Need to Establish Resources

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5 No Lack of Capacity Issues (Bandwidth Issue)

Recently, US Federal Communications Commission has given a cautionary warning about an upcoming spectral crisis or simply the capacity issues of Wi-Fi, as various Wi-Fi connections almost fillup the radio waves spectrum. You know what? Radio waves part is a smaller portion on the entire light spectrum, and visible region has far better length. As Li-fi is making use of visible light, there are no issues with capacity or bandwidth.

No Lack of Capacity Issues

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6 High-Efficiency

We crave for high efficiency in everything we use. If we use a network, it should be effective both in price and performance. Li-fi is cheap as an LED bulb is readily available for $10 bucks. And, with the speed, you may drop your jaw with the lightning downloads and browsing. In 2014, a Mexican company called Sisoft was able to send data at an unbelievable rate of 10 Gbps through the light from LED lamps.

So, in my opinion this is going to be another cyber revolution, which has the capability to rewrite the history of networking technology. But you have to wait for at least a year to see this technology to be common among people. I am also watching the developments in this field closely, just like you.


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