By now all of you must have come across the term Li-Fi. Yes the term is Li-Fi. It is a new technology that can provide internet via light waves. By now your thoughts must be pondering is this possible? Is this even practical? Does such a technology exist? There must be quite a lot of unanswered questions in your mind. Are you aware that there are millions of light bulbs that are used in the world, which could be used as a wireless hotspot? Yes indeed. Li-Fi internet has proved to be about 100 times faster than Wi-Fi. Indeed it is the future technology for Internet Connectivity through Light Bulbs.
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With such high speeds you can actually download multiple HD movies in the blink of an eye. Light Fidelity (Li-Fi) is moving in trails around the world. The idea had been implemented a few years back. But it took some time before Internet Connectivity through Light Bulbs was used in real-time and tested.
A little about Li-Fi: Internet Connectivity through Light Bulbs
Li-Fi stands for Light Fidelity. It is based on ground breaking light-based communication to provide Internet Connectivity through Light Bulbs. This light based communication technique makes uses of light waves. A bi-directional high speed wireless communication technology much similar to Wi-Fi. It is 100 times faster than Wi-Fi technology. It is so fast because it uses light waves and not radio waves for data transmission. With such high speeds you can access and download anything with a fraction of a second. Now LED lights can be used for two purposes. One is for lighting and the other for communication. So you can now access the internet through your smartphone by light waves. Visible light spectrum is available in plenty and is free. Li-Fi first came into existence back in 2011. It was introduced by German Physicist Harald Hass.
Benefits of Li-Fi
- Efficient
- Secure
- Available abundantly
Wi-Fi Downside
With Wi-fi, the radio waves that are used are heavily regulated. Spotting data in lines is a difficult task. Base station transmits the radio waves with just 5% efficiency. The rest of the energy gets used up to cool the station. Security has always been an issue in Wi-Fi.The radio waves also cannot travel through walls, doors and other barriers.
Why Li-Fi?
Lif-Fi data transmission is through light illumination. LED light bulbs will go on to replace routers and enable greater data modulation, that regulates greater speeds. Apart from that it is also an economical and efficient solution to serve data. There are plenty of light bulbs in our homes and offices. Li-Fi uses light waves and hence it can be accessed only by a person in the same room. As light waves cannot penetrate doors and walls, a person in the same room will ensure the security isn’t lost. Light bulbs are available in plenty around the world. It is available in all places starting from home, office, restaurants and public places. So Li-fi promises greater availability and has a greater potential to provide high speed data transmission with your smartphone.
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Wrap up:
There is always two sides to a coin. Like wise there are a few limitations to Li-Fi also. Li-Fi is limited to indoors. It doesn’t work greatly outdoors. Since it uses light waves you cannot expect it to work in a forest or any other place where there isn’t light waves to transmit data. Secondly Li-Fi could cause light pollution. With too much use of artificial lights it will take a toll and the consequences could possibly disrupt the ecosystem. It could have adverse effects on health and also waste a lot of energy. It could result in cost and carbon footprint. Though it is quite evident that Li-Fi will not replace existing 4G, LTE or 3G it will definitely work seamlessly on its own. It could be the most widely used technology for communication in the future for Internet Connectivity through Light Bulbs.
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