Li-Fi technology breakthrough LED visible light communication transmission distance 10 times

University of Edinburgh in Scotland on Tuesday (8 May) announced that it has developed a new technology to reduce the Li-Fi network power consumption to 0.5 watts, and will increase the transmission distance of 10 times.

Li-Fi is a new wireless transmission technology using visible light Pope data transmission, invented by the German physicist Harald, Haas. The technology by changing the room lighting light flicker frequency for data transmission, as long as the indoor lights, no WiFi can access the internet.

According to the announcement issued by the University, the researchers used micron light emitted from the light emitting diode, the Li-Fi network uses less than 0.5 watts of power within 10 meters, to 1.1Gbps data transfer speed, its power consumption is only 5% of power consumption of 10 watt LED bulb.

The study was led by Harald Haas, a professor at University of Edinburgh in Scotland (Harald Haas), with the pureLiFi company. Harald Haas is known as one of the world's leading LED technology.

Visible light communication has become the United States, Japan and Europe and other countries in the field of international communication. Many experts believe that Li-Fi represents the future trend of mobile internet. Li-Fi will be much cheaper than WiFi because it uses visible light rather than radio waves. The spectrum is 10000 times larger than the radio spectrum, and it can get higher data density.

Professor Harald Haas said, Li-Fi is changing wireless communications technology, and can become a booster of the rise of the Internet of things. He said that on the basis of the breakthrough in the study, will continue to focus on the development of Li-Fi technology, and in the near future to make it the Internet transmission.

U.S. market research firm pointed out that the total market value of visible optical communications technology market is expected to grow from $96 million in 2012 to $6 billion 140 million in 2018.

In China, there are companies are conducting research related to Li-Fi network technology. Fudan University in October last year, the successful realization of the use of indoor visible light for network signal transmission. At that time the highest transmission rate of up to 3.25G, the average internet access rate of 150M.

In addition, KingSun in May 2013 signed a cooperation agreement with Tsinghua University building LED wireless optical communication project, the two sides officially started construction enterprise joint research institutions in the field of optical communication, and strive for its construction will become a national platform. Currently, the two sides have successfully developed Lifi mobile phone version of the sample.