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May 24, 2016 02:00 am
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/-u3u6tpKwl0/researchers-set-world-record-wireless-data-transmission-rate-of-6-gbsec-over-37-km
Researchers Set World Record Wireless Data Transmission Rate of 6 GB/Sec Over 37 KM
An anonymous reader quotes a report from Science Daily: Transmitting the contents of a conventional DVD in under ten seconds by radio transmission is incredibly fast -- and a new world record in wireless data transmission. With a data rate of 6 Gigabit per second over a distance of 37 kilometers, a collaborative project with the participation of researchers from the University of Stuttgart and the Fraunhofer Institute for Applied Solid State Physics IAF exceeded the state of the art by a factor of 10. The extremely high data rates of 6 Gbit/s was achieved by the group through efficient transmitters and receivers at a radio frequency of 71-76 GHz in the so-called E band, regulated for terrestrial and satellite broadcasting. The circuits are based on two innovative transistor technologies developed and manufactured by the project partner Fraunhofer IAF. In the transmitter the broadband signals are amplified to a comparatively high transmission power of up to 1 W with the help of power amplifiers on the basis of the novel compound semiconductor gallium-nitride. A highly directive parabolic antenna emits the signals. Built into the receiver are low-noise amplifiers on the basis of high-speed transistors using indium-gallium-arsenide-semiconductor layers with very high electron mobility. They ensure the detection of the weak signals at high distance. The transmission of high quantities of data by radio over large distances serves a high number of important application areas: the next generation of satellite communication requires an ever-increasing data offload from earth observation satellites down to earth. Supplying the rural area and remote regions with fast Internet is possible as shown in the trial. Earlier this year, engineers at the University of Illinois were able to set a record for fiber-optic data transmission, transmitting 57Gbps of error-free data at room temperature.Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/-u3u6tpKwl0/researchers-set-world-record-wireless-data-transmission-rate-of-6-gbsec-over-37-km
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