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World Record: Wireless Data Transmission at 100 Gbit/s

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Artist's representation of data transmission.

Researchers in Germany have developed a way to send data wirelessly at the world-record pace of 100 Gbps.


German researchers have developed a method for wireless data transmission at a world-record pace of 100 Gbps. The data transmission was sent at a frequency of 237.5 gigahertz over a distance of 20 meters in the laboratory.

Stuttgart University professor Ingmar Kallfass says the Millilink project focused on integrating "a broadband radio relay link into fiber-optical systems."

The researchers say the technology represents an inexpensive and flexible alternative to optical fiber networks, whose extension often cannot be justified from an economic point of view. "At a data rate of 100 gigabits per second, it would be possible to transmit the contents of a Blue-Ray disk or of five DVDs between two devices by radio within two seconds only," Kallfass says.

As part of the experiments, the latest photonic and electronic technologies were combined. First, the radio signals are generated by an optical method, and then several bits are combined by data symbols and transmitted at the same time. Upon transmission, active integrated electronic circuits receive the radio signals.

"It is a major advantage of the photonic method that data streams from fiber-optical systems can directly be converted into high-frequency radio signals," notes ETH Zurich professor Jurg Leuthold.

From Karlsruhe Institute of Technology
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Abstracts Copyright © 2013 Information Inc., Bethesda, Maryland, USA


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