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A battery lifetime guarantee scheme for selective applications in smart mobile devices

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Title
A battery lifetime guarantee scheme for selective applications in smart mobile devices
Author
Cho, JungwookWoo, YoungjooKim, SuntaeSeo, Euiseong
Keywords
battery management; energy-aware scheduling; mobile operating systems; scheduling algorithms; smartphones
Issue Date
201402
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, v.60, no.1, pp.155 - 163
Abstract
Unpredictable battery lifetime arising from multitasking can have a significant negative effect on availability for mobile devices. In practice, some applications are prioritized and required to remain in operation for certain duration. This paper suggests a battery lifetime guaranteeing scheme for prioritized applications in multitasking mobile systems. The proposed approach profiles and analyzes the battery usage pattern of each task dynamically, and preserves the energy budget for operation of prioritized tasks for a guaranteed time. In addition, this paper proposes an energyconstrained scheduler that limits the energy consumption of tasks while preserving scheduling patterns, which translates to the QoS. The suggested scheme is implemented in a commercial smartphone and evaluated. The evaluation showed that the proposed scheme successfully provides guaranteed operation time for prioritized tasks.
URI
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DOI
http://dx.doi.org/10.1109/TCE.2014.6780938
ISSN
0098-3063
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