Energy Minimization with Guaranteed Quality of Service
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Date
2000-07Citation
G. Qu and M. Potkonjak. "Energy Minimization with Guaranteed Quality of Service," ACM/IEEE International Symposium on Low Power Electronics and Design, pp. 43-48, July 2000.
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Show full item recordAbstract
Quality of service (QoS) is one of the key features for new
Internet-based multimedia and other applications. Mean-
while, energy remains as a big concern for systems that per-
form such applications. We address the issue of combining
system design concerns and QoS requirements to design systems that can deliver QoS guarantees. In this paper, we
discuss how to satisfy QoS requirements and minimize the
system's energy consumption. Specifically, we consider the
following problem: Given a set of applications each specifying its required amount of computation and service time,
how we allocate CPU time and determine the voltage profile
on a variable voltage system, such that all the applications'
requirements are satisfied and the system's total energy con-
sumption is minimized. We optimally solve several basic
cases and propose a dynamic programming procedure for
the general case. Simulation shows that the new approach
saves 38.75% energy over the system shut-down technique.