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Telecommunications


— Telecommunications

Full-duplex technology could double wireless capacity with no new towers

Earlier this year, Stanford University researchers created a full-duplex radio that allowed wireless signals to be sent and received simultaneously, thereby doubling the speed of existing networks. Using the same approach, researchers at Rice University have now developed similar full-duplex technology that would effectively double the throughput on mobile networks without the addition of any extra towers. Read More
— Telecommunications

New system could make censorship of Internet sites virtually impossible

Chinese citizens could once again enjoy LOL Cats on YouTube - as well as content critical of the communist government - if a new system developed by researchers at the University of Michigan (U-M) and the University of Waterloo (UW) in Canada were implemented. The researchers claim the system, called Telex, would thwart Internet censorship and make it virtually impossible for a censoring government to block individual sites by essentially turning the entire web into a proxy server. Read More
— Telecommunications

IEEE 802.22 wireless network standard to offer 62 miles of range

The IEEE (Institute of Electrical and Electronics Engineers) has announced the completion of the IEEE 802.22 wireless network standard, which has been in the works since 2004. Utilizing unused white spaces between channels in the TV frequency spectrum, the 802.22 standard will serve Wireless Regional Area Networks (WRANs), which are meant to bring broadband access to sparsely populated rural areas, as well as to developing countries. Read More
— Telecommunications

State of the Internet report - Asia still fastest, new source of attack traffic emerges

Akamai might not be a household name but between 15 to 30 percent of the world’s Web traffic is carried on the Cambridge, Massachusetts-based company’s Internet platform at any given time. Using data gathered by software constantly monitoring Internet conditions via the company’s nearly 100,000 servers deployed in 72 countries and spanning most of the networks within the Internet, Akamai creates its quarterly State of the Internet report. The report provides some interesting Internet-related facts and figures, such as regions with the slowest and fastest connection speeds, broadband adoption rates and the origins of attack traffic. Read More
— Telecommunications

AR system lets engineers show remote technicians what they're talking about

It can be very frustrating trying to fix something, when the person instructing you isn’t there in person, but is instead communicating with you over a phone line – “Whaddaya mean, ‘The silver cap’? Which silver cap?!” This is why engineers sometimes need to be flown in to factories or other places that use complex machines, to make repairs that simply can’t be explained verbally. Researchers from the Fraunhofer Institute for Communication, Information Processing and Ergonomics, however, have developed an augmented reality system that lets those engineers provide real-time visual instructions to distant on-site technicians ... and it can be done without internet access. Read More
— Telecommunications

SleepWell system puts mobile devices to sleep to conserve power while waiting on Wi-Fi

Although the number of Wi-Fi hotspots has increased dramatically in most places over the past few years, the explosion in the number of smartphones and laptops attempting to make use of such connections means that getting decent download speeds is as difficult as it always was. Not only is this frustrating, it can also be a major drain on the batteries of mobile devices. In an effort to address one of these problems, a Duke University graduate student has developed software called SleepWell that allows mobile devices to take a nap to save power while they wait for their turn to download. Read More
— Telecommunications

Optical amplifier could quadruple the range of fiber optic signals

As the amount of information being electronically shuttled around the planet continues to grow, so does the need for effective means of relaying it. The use of optical fibers has definitely helped in that regard, although thanks to a recent breakthrough at Sweden’s Chalmers University of Technology, optical fiber signals may soon be able to travel four times farther than they are presently able to. Researchers there have created an optical amplifier, capable of amplifying light while maintaining a relatively noise-free signal. Read More
— Telecommunications

Improved tracking system being developed for firefighters

Even though firefighting is one of the most dangerous jobs in the world, firefighters still communicate using analog radio signals, that can be blocked by concrete walls. This means that, upon venturing into a burning building, a firefighter might have no way of letting their commander know their present location – a situation that could prove deadly, if they ended up trapped or injured. In order to address the situation, the U.S. Department of Homeland Security’s Science and Technology Directorate has created a new three-part system that lets fire crews keep track of the location and well-being of every member of their team, all the time. Read More
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