Cosynthesis of energy-efficient multimode embedded systems with consideration of mode-execution probabilities

We present a novel co-design methodology for the synthesis of energy-efficient embedded systems. In particular, we concentrate on distributed embedded systems that accommodate several different applications within a single device, i.e., multimode embedded systems. Based on the key observation that o...

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Bibliographic Details
Published in:IEEE transactions on computer-aided design of integrated circuits and systems 2005-02, Vol.24 (2), p.153-169
Main Authors: Schmitz, M.T., Al-Hashimi, B.M., Eles, P.
Format: Article
Language:English
Subjects:
Costs
Digital audio players
Digital cameras
Embedded system
Embedded systems
Energy consumption
Energy dissipation
Energy efficiency
Hardware
Mobile handsets
Multimode systems
Personal digital assistants
Power minimization
System-level cosynthesis
TECHNOLOGY
TEKNIKVETENSKAP
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Summary:We present a novel co-design methodology for the synthesis of energy-efficient embedded systems. In particular, we concentrate on distributed embedded systems that accommodate several different applications within a single device, i.e., multimode embedded systems. Based on the key observation that operational modes are executed with different probabilities, that is, the system spends uneven amounts of time in the different modes, we develop a new co-design technique that exploits this property to significantly reduce energy dissipation. Energy and cost savings are achieved through a suitable synthesis process that yields better hardware-resource-sharing opportunities. We conduct several experiments, including a realistic smart phone example, that demonstrate the effectiveness of our approach. Reductions in power consumption of up to 64% are reported.
ISSN:0278-0070
1937-4151
1937-4151
DOI:10.1109/TCAD.2004.837729