The University of Edinburgh, Scotland, announced on Tuesday (8) that new technologies have been studied to reduce the power consumption of Li-Fi networks to 0.5 watts and increase the transmission distance by 10 times.
Li-Fi is a new wireless transmission technology that uses visible light to transmit data. It was invented by German physicist Harald Haas. This technology transfers data by changing the flicker frequency of the room lighting, so long as the lamp is opened indoors, the Internet can be accessed without the need of WiFi.
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 Professor Harald Haas of University of Edinburgh in Scotland and co completed with American pureLiFi. Harald Haas is known as one of the leading figures in the global LED technology.
Visible light communication has become a competitive place in the field of international communication research in the United States, Japan and Europe. Many experts believe that Li-Fi represents the trend of the future mobile Internet. Li-Fi will be much cheaper than WiFi because it uses visible light waves rather than radio waves. The spectrum is 10000 times larger than the radio spectrum, and a higher data density can be obtained.
Professor Harald Haas says Li-Fi is changing wireless communication technology and can be a boost to the rise of the Internet of things. He said that on the basis of this research breakthrough, he will continue to focus on the vigorous development of Li-Fi technology and make it the way of Internet transmission in the near future.
A US market research company pointed out that the total sales of the visible optical communication technology market will increase from 96 million US dollars in 2012 to 6 billion 140 million US dollars in 2018.
In China, there are also enterprises in the Li-Fi network technology related research. Last October, Fudan University successfully realized the use of visible light for network signal transmission. The maximum rate of transmission at that time was up to 3.25G, and the average rate of Internet access was 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. At present, the two sides have successfully developed the Lifi mobile phone version sample.