Author_Institution :
Nokia Res., Berkeley, CA, USA
Abstract :
A mobile device is a compromise between size, weight, processing power, storage, sensing, communication bandwidth, and battery lifetime. Typical mobile phones consume about 0.5W for the display, 1W for communication, and 1W for computation. We investigate 5 basic approaches to saving energy and extending the battery life in mobile devices: · more stored energy better batteries · idle more efficiently hibernation, notifications, keep alive messages, · minimize display energy backlight, driver, animations, color · minimize communication energy cheapest bearer, data overhead, aggregation, femto · minimize computational energy process scaling, microarchitecture, application-specific hardware, offloading.
Keywords :
energy conservation; femtocellular radio; mobile handsets; secondary cells; battery life; communication energy minimisation; computational energy minimisation; display energy minimisation; energy saving; femto; mobile device; mobile phone; Batteries; Computer architecture; Electronic mail; Energy efficiency; Mobile handsets; Program processors;
