Date of Award

1-26-2012

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Applied Science

First Advisor

Radu Babiceanu

Abstract

In the ever-increasing digital world, mobile devices, such as smart-phones and tablet computers are on the trend to become the most used electronic devices. Multimedia applications running on these devices require appropriate operating system support. One limitation of the capabilities of these devices comes from their power source: they are all battery-powered, with a restricted battery energy budget. An important part of the total power is used by the CPU of these devices, so by controlling the power consumed by the CPU, the overall power used by the mobile device will be significantly reduced. This work proposes a systems engineering modeling approach that integrates soft-real time CPU scheduling methodologies with dynamic voltage scaling approaches with the objective of achieving energy savings while providing a high-quality level of service. A simulation model that feeds with variables of interest a factorial design of experiments is proposed. The results obtained show the potential of obtaining important energy savings at the CPU level using the framework proposed in this study.

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