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Communications

The tailbot, a running, jumping mobile sensor that can maneuver in mid-air with its tail (...

Imagine mobile sensor networks that run around, jump and maneuver in the air to get the job done. That's what Jianguo Zhao is working towards; his design for such networks involves biologically-inspired sensors in the form of robots with little tails. These "tailbots" are expected to have applications in areas ranging from search and rescue to surveillance and environmental monitoring.  Read More

The Text Anywhere works on the Iridium satellite network to provide global text messaging ...

Touted as a simpler, subscription-free alternative to the Delorme inReach, the Text Anywhere is a portable, satellite-powered hot spot that adds virtually unlimited text-messaging range to your phone. If your work or play takes you to remote regions of the world out of mobile phone range, this device can keep you in touch with the folks back in civilization.  Read More

Two ambient backscatter test devices are able to communicate, despite having no batteries ...

In order for the Internet of Things to become a reality, devices will need to be able to communicate with the internet and with one another. If they have to be powered up in order to so, however, a lot of electricity is going to be wasted. That’s where a new technology known as “ambient backscatter” comes into the picture. Developed by engineers at the University of Washington, it uses ever-present existing TV and cellular signals to provide the power and medium for battery-less communications.  Read More

ScanEagles can provide real time telemetry for prolonged periods (Image: Boeing)

Radio has come a long way since Marconi bashed a telegraph key and radar is a miracle compared to when it was just a squiggle on a cathode tube, but despite a century of advances, they’re still prone to the same problems as the first pioneers encountered. For five days in July, the Office of Naval Research’s (ONR) Research Vessel (R/V) Knorr made a survey in the waters off Virginia Beach, Virginia using ScanEagle UAVs to study the effect of oceanic and atmospheric changes on radar and radio waves with the aim of producing more secure military communications and improve the ability of radar to detect hostile craft.  Read More

Artist's concept of the LADEE spacecraft (Image: NASA)

Space communications have relied on radio since the first Sputnik in 1957. It’s a mature, reliable technology, but it’s reaching its limits. The amount of data sent has increased exponentially for decades and NASA expects the trend to continue. The current communications systems are reaching their limits, so NASA and ESA are going beyond radio as a solution. As part of this effort, ESA has finished tests of part of a new communications system, in preparations for a demonstration in October in which it will receive a laser data download from a NASA lunar orbiter.  Read More

Alphasat hitched a ride aboard an Ariane 5 ECA rocket, which took off from Kourou in Frenc...

Europe's largest telecommunications satellite has gone into orbit following a successful launch from French Guiana on Thursday. At 8:38 p.m. GMT, Alphasat (all 6.6 tonnes of it) was picked up at Inmarsat's Beijing ground station, confirming that the satellite was operating as expected.  Read More

Graphene continues to strengthen its reputation as a wonder material, this time in the fie...

Researchers from the Universities of Bath and Exeter have shown that a few layers of graphene stacked on top of each other could act as a formidable material for optical switches, delivering speeds up to 100 times faster than current telecommunications technology.  Read More

The Last Ride of the Pony Express - painted by  George M. Ottinger in 1873 - showing a Pon...

After linking the world for 167 years, the commercial electric telegraph is no more. The speed with which electromagnetic telegraph systems took over both short- and long-distance communication in the mid 19th century set the pattern which telephones and the internet would follow, spawning the connected world we now live in. The closing down of India's state-run Bharat Sanchar Nigam, Ltd. (BSNL) network on Monday sparked a last-minute rush of people looking to send a souvenir telegram to mark the historic event before the electric telegraph was relegated to the history books.  Read More

This artist's concept of OPALS in operatin (Image: NASA)

In internet engineering, there’s a problem called the “last half mile," which looks at how to connect users to high-speed fiber optic networks without going through old-fashioned copper wires that can slow data down to a crawl. NASA has more of a “last 250 miles” problem in making data connections with the International Space Station (ISS). The upcoming Optical Payload for Lasercomm Science (OPALS) project is an optical technology demonstration for using lasers to improve communications with the ISS and other spacecraft in hopes of boosting connection speeds by a factor of 10 to 100.  Read More

Ford's Electronic Brake Light system alerts drivers to other vehicles that are braking in ...

The Ford Motor Company recently tested its experimental “Electronic Brake Light” system, as part of the 4-year Safe Intelligent Mobility - Testfield Germany (simTD) joint industry research project. The technology causes a dashboard light to illuminate in your car, when a vehicle in front of you applies its brakes.  Read More

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