Computing Lifetimes for Battery-Powered Devices

doi:10.1007/978-3-642-20009-0_31

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Computing Lifetimes for Battery-Powered Devices

2011-06-21

Marijn Jongerden *

Boudewijn R. Haverkort

DOI：10.1007/978-3-642-20009-0_31

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Abstract

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The battery lifetime of mobile devices depends on the usage pattern of the battery, next to the discharge rate and the battery capacity. Therefore, it is important to include the usage pattern in battery lifetime computations. We do this by combining a stochastic workload, modeled as a continuous-time Markov model, with a well-known battery model. For this combined model, we provide new algorithms to efficiently compute the expected lifetime and the distribution and expected value of the delivered charge.