A French provider company in Paris is testing a new wireless data transfer technology for almost two years. Similarly to Wi-Fi it was called deriving from the English term "light fidelity" because the know-how works by using light.Cedric Meyer, director of OLEDCOMM provider says this technology became possible due to Li-Fi receiver that automatically reads the data. He is convinced everything is very easy to understand and explains the process. According to him, LED rays are accelerated at a very high frequency. It is completely invisible to the human eye.
LED bulbs that are the main component used in experiment can produce not only light but also wireless connection, which is capable to reach a speed up to 3 gigabytes per second. Thus the speed exceeds the possibilities of a wide-spread Wi-Fi in 150 times. The underlying principle is as follows: when a LED lamp is switched on it transmits a certain digital unit, when it is switched off a zero is transmitted. Since the lamps can turn on and off very-very swiftly the bright opportunities for wireless communications are opened.
The innovation can also be applied to modern Internet technologies. The modem connected to the LED lamp is able to send information to a computer with the aid of a photosensitive sensor. New technology does not emit electromagnetic waves and, unlike Wi-Fi, can be used on a board of an aircraft, in hospitals or even under water where Wi-Fi is not running without the slightest risk. It can be run using IPv6 protocol. You can always use the IPv6 calculator and converter in order to make life less complicated calculating IP numbers. The benefits are obvious, but there are also disadvantages.
Communication devices, such as smartphones, for instance, should be placed directly under the lamp to receive light rays. So it definitely becomes a significant limitation in the use of mobile devices.
Currently,several German, Japanese and American providers are developing a special web application for Li-Fi. Meanwhile, Paris company hopes to introduce a new device to a market in 2014. Target price is about 80 euro.
After the mass commercial launch Li-Fi can solve some of the major communication problems. Yet in 2009 the Federal Communications Commission in the United States has warned of a looming crisis: because our mobile devices consume a large amount of data, our bandwidth radio frequencies will soon run very low. Li-Fi will allow to free up bandwidth, especially since most of the infrastructure already exists. All over the world there are 14 billion light bulbs,they just need to be replaced by the LED lamps that can transmit data, the scientists believe. They also presume that Li-Fi will be ten times cheaper than the Wi-Fi. At the same time an overwhelming majority of scientists doubt that Li-Fi won’t be able to solve all the communication problems existing so far.