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SleepWell system puts mobile devices to sleep to conserve power while waiting on Wi-Fi

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Although the number of Wi-Fi hotspots has increased dramatically in most places over the past few years, the explosion in the number of smartphones and laptops attempting to make use of such connections means that getting decent download speeds is as difficult as it always was. Not only is this frustrating, it can also be a major drain on the batteries of mobile devices. In an effort to address one of these problems, a Duke University graduate student has developed software called SleepWell that allows mobile devices to take a nap to save power while they wait for their turn to download.

The SleepWell system was developed by Justin Manweiler, who likens its advantages to those that would be seen if companies in major cities staggered their work hours to reduce rush hour traffic. And like traffic congestion relief, the biggest advantages of the SleepWell system would be seen in cities where the density of Wi-Fi-enabled devices is greatest.

“The SleepWell-enabled Wi-Fi access points can stagger their activity cycles to minimally overlap with others, ultimately resulting in promising energy gains with negligible loss of performance,” said Manweiler.

via SleepWell system puts mobile devices to sleep to conserve power while waiting on Wi-Fi.

Written by Kees Winkel

July 1, 2011 at 16:32

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