Smart radios and other new wireless devices will avoid transmission bottlenecks by switching instantly to nearby frequencies that they sense are clear Your favorite radio station transmits on a ...

WASHINGTON (May 2, 2012) -- The Joint Program Executive Office for Joint Tactical Radio Systems is moving closer to its vision of Cognitive Radio, a concept engineered to allow a family of ...

Radio communications should travel perfectly through space, right? Well, not exactly, as it turns out. There’s plenty to interfere with radio communications away from the surface of Earth, including ...

The future of two-way radio communication lies in the ability to use a single device to communicate as a network with other types of devices, maximize the use of limited bandwidth and harness the ...

In the future, soldiers on the ground may need to do only one thing for a range of radio operations: turn on the equipment. Once engaged, the so-called cognitive radios would be able to detect other ...

For decades, amateur two-way radio operators have communicated across entire continents by choosing the right radio frequency at the right time of day, a luxury made possible by having relatively few ...

Cognitive radio networks (CRNs) represent an innovative paradigm in wireless communications that optimises the usage of the limited radio frequency spectrum. By enabling unlicensed secondary users to ...

During the call, the CR equipment needs to continuously monitor thechannel and other frequencies, because other (non-CR) users may start upa call. These are often termed Licensed Users, and they have ...

Cognitive Radio Networks (CRNs) have emerged as a sustainable solution to the growing demand for spectrum efficiency by allowing unlicensed (secondary) users to opportunistically access underutilised ...

The Air Force is eying a new kind of wireless network. Used inside Air Force planes, the tech could prevent enemy aircraft from jamming signals, and though that may seem far from the everyday world, ...

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