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The integration of multiple hardware components available in current smartphones improves their functionality but reduces their battery life to few hours of operation. Despite the positive improvements achieved by hardware and operating system vendors to make mobile platforms more energy efficient at various levels, we believe that an efficient power management in mobile devices is compromised by strict layering of the system caused by complex mobile business models that mitigates against cross-layering optimisations. However, there is a lot of room for improvement in the operating system. This paper presents ErdOS, a user-centered energy-aware operating system that extends the battery life of mobile handsets by managing resources proactively and by exploiting opportunistic access to resources in nearby devices using social connections between users.
Vallina-Rodríguez et al. (2011) studied this question.