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New Technology Can Prevent Cellular Overload, Dropped Calls

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A cellphone user in action.

A newly developed method can use TV and radio channels to transmit cellular signals, when standard cellular transmission systems are pushed beyond capacity.

Credit: iStock

University of British Columbia Ph.D. student Mai Hassan has developed a way to use TV and radio channels to transmit cellular signals when systems are pushed beyond capacity.

"I proposed a more effective way to use any channel in the neighborhood, even if those channels are being used by radio or television stations," Hassan says. However, she notes, "the challenge was finding a way to make sure the cellular signals didn't interfere with the people using those channels in the first place."

The solution involves changing the shape of the wireless signal so it could be transmitted on channels that use radio or TV frequencies. By manipulating the direction of the cellular signals, Hassan was able to transmit calls and texts to a receiver while avoiding any interference with the original radio and TV signals.

As part of her study, Hassan utilized a crowd of mobile phones in a network, with each phone having only one smart antenna, to cooperatively achieve the same constructive or destructive interference pattern.

From UBC News
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