new drone antenna expands wi-fi range for disaster-struck areas.pdf

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    D R O N E S

    New drone antenna expands Wi-Firange for disaster-struck areasNick Lavars | August 5, 2014

    Researchers from the University of North Texas (UNT) have demonstrated an

    unmanned aerial vehicle (UAV) capable of supplying Wi-Fi to disaster-struck areas

    with a range of up to 5 km (3.1 miles). The team says these figures represent amarked improvement on existing solutions and could lead to new forms of

    wireless communication.

    "This technoloy would be very useful in disaster scenarios when the cell towers

    are down and there's no communication infrastructure," says Yan Wan, Assistant

    Professor of Electrical Engineering at UNT and leader of the research project.

    Where typical Wi-Fi antennas have a range of around 100 m (328 ft), Wan and

    her team were able to extend this by developing a directional antenna. The

    antenna rotates to automatically align with a target, serving to better maintain a

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    drone antenna expands Wi-Fi range for disaster-struck areas http://www.gizmag.com/drone-wi-fi-range-disaster-are

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    S H O W 2 C O M M E N T S

    strong communications link and prevent signal disruption, but there is still some

    way to go before it's real-world implementation.

    "In order to enable the information dissemination between the rescue teams and

    control centers, we need to have a structure available to make this happen," Wan

    says. "And this is what we're trying to provide."

    The damage to the communications infrastructure that often accompanies the

    destruction of buildings in storm-ravaged areas makes it difficult for response

    teams to communicate efficiently, and to keep disaster victims informed. In the

    past, we have seen dronesequipped with hardware to provide networks in

    disaster zones, though the technoloy developed by the UNT team is said to hold

    such promise that it could give rise to an entirely new breed of wireless

    communication.

    "We cannot rely on all our communications running through the ground or

    satellite," explains Wan. "So if we can have this technoloy develop for drone-

    to-drone or flight-to-flight communication, we can have better sensing, better

    coordination and better safety."

    Wan has been awarded a grant from the National Science Foundation to focus ondeveloping this new generation of aviation systems.

    Source: National Science Foundation

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    drone antenna expands Wi-Fi range for disaster-struck areas http://www.gizmag.com/drone-wi-fi-range-disaster-are

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