July 3, 2011

WiFi 'napping' doubles phone battery life thanks to SleepWell

Justin Manweiler, a Duke University graduate student, has found a way to double the battery life of mobile devices such as smartphones or laptop computers by making changes to WiFi technology. PhysOrg.com reports.

quotemarksright.jpgWiFi is a popular wireless technology that helps users download information from the Internet. Such downloads, including pictures, music and video streaming, can be a major drain of battery.

The energy drain is especially severe in the presence of other WiFi devices in the neighborhood. In such cases, each device has to "stay awake" before it gets its turn to download a small piece of the desired information. This means that the battery drainage in downloading a movie in Manhattan is far higher than downloading the same movie in a farmhouse in the Midwest, the researchers said.

The Duke-developed software eliminates this problem by allowing mobile devices to sleep while a neighboring device is downloading information. This not only saves energy for the sleeping device, but also for competing devices as well.quotesmarksleft.jpg

Read full article.

emily | 12:14 PM | Technology | Add this this entry to your del.icio.us bookmarks. Digg This Technorati search results for this Entry
The Permanent Link to this page is: http://textually.org/textually/archives/2011/07/028885.htm
Google+ FaceBook Follow Me on Pinterest
Home | About | ArchivesCopyright © 2014