TechHive: 'Backscatter' network could support the Internet of Things

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'Backscatter' network could support the Internet of Things Sep 1st 2013, 20:50, by , Techworld.com Researchers in America say they have created a wireless communication system that allows devices to communicate with each other without relying on batteries or wires for power and could play a vital role in the Internet of Things. The communication technique—dubbed "ambient backscatter" by the University of Washington scientists—allows devices to communicate with each other by reflecting or absorbing preexisting radio signals from TV and mobile transmissions. UW Shyam Gollakota The energy-saving breakthrough could be particularly well suited to a home-based Internet of Things scenario where devices are usually within a few meters of each other. The team has built small, battery-free devices with antennas that can detect, harness, and reflect a TV signal, which is then picked up by other similar devices. To read this article in full or to leave a comment, please click here Media files: wireless-backscatter-100052315-small.jpg

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