Saturday September 12, 2015

New Tool Reduces Smartphone Battery Drain By Suppressing Background Activities

Purdue University has introduced HUSH for improving the battery life of Android smartphones. The tool was designed to address the finding that apps drain nearly 30 percent of battery power while the screen is off.

The key insight behind the proposed solution, HUSH, is that background activities of individual apps are not equally important to individual smartphone users. For example, frequent Facebook updates during screen-off may be useful to a user who checks Facebook feeds and reacts to notifications often, but they are much less useful to another user who rarely checks such updates. The HUSH system dynamically identifies app background activities that are not useful to the user experience on a per-app basis and suppresses such background app activities during screen-off to reduce the battery drain.

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