A new LED technology can increase the bandwidth of WLAN systems to 10-fold. Researchers have found this a way to transfer the data over the light. The technology could be conveniently integrated into existing wireless systems and even allow video streaming even in places with high number of users, such as airport terminals or coffee shops.
Not only light: The research makes LED technology can also be used for data transmission. (Photo: AP)
Researchers at Oregon State University have developed a new technology that can increase the bandwidth of WLAN systems to 10-fold. Researchers use this LED lights to transmit information.
The technology could be integrated into existing wireless systems to reduce bandwidth problems in places with high number of users, such as airport terminals or coffee shops. Even for families in which several people use wireless devices, the development is applicable.
The recent advances in LED technology have made it possible according to the scientists, the LED light to modulate quickly and so to use the light for the wireless transmission in optical communication systems in the “free space”.
“In addition to improving the user are the two major advantages of this system inexpensive components and the possibility of it in existing WLAN systems to integrate, “said Thinh Nguyen, an OSU professor of electrical and computer engineering, building the first prototype.
The prototype, called WiFO uses LEDs that are outside the visible spectrum for humans, and creates an invisible beam of about one square meter, in which the data can be received. To solve the problem of the relatively small payload range, the researchers have developed a hybrid system that switches between several LED transmitters on the ceiling and the existing WLAN system back and forth. A similar multifunctional lamp with wireless amplifier has developed a startup called Sengled.
“I think the WiFO system could easily be turned into a marketable product, and we are currently looking for a company the interest in the further development and licensing of technology has, “Nguyen said.
The system can send data at up to 100 megabits per second. Although some current wireless systems have a similar bandwidth must be at this bandwidth divided on the number of devices, so that each user can only receive 5 to 10 megabits per second, while the hybrid system can provide 50-100 megabits of each individual user can
In a house where more and more devices such as phones, tablets, computers, game consoles, and TV all be connected to the Internet., increased bandwidth would solve many problems. Especially the more corpulent streaming services for music or movies could benefit: The system could allow about video streaming without buffering delay and
The receivers are small photodiodes that cost less than a dollar and a USB. be connected to the power connector or integrated into laptops, tablets and smartphones.
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