Quasi-static voltage scaling for energy minimization with time constraints


Supply voltage scaling and adaptive body-biasing are important techniques that help to reduce the energy dissipation of embedded systems. This is achieved by dynamically adjusting the voltage and performance settings according to the application needs. In order to take full advantage of slack that arises from variations in the execution time, it is important to recalculate the voltage (performance) settings during run-time, i.e., online. However, voltage scaling (VS) is computationally expensive, and thus significantly hampers the possible energy savings. To overcome the online complexity, we propose a quasi-static voltage scaling scheme, with a constant online time complexity O(1). This allows to increase the exploitable slack as well as to avoid the energy dissipated due to online recalculation of the voltage settings. We conduct several experiments that demonstrate the advantages of the proposed technique over the previously published voltage scaling approaches.

DOI: 10.1109/DATE.2005.250

Extracted Key Phrases

10 Figures and Tables


Citations per Year

51 Citations

Semantic Scholar estimates that this publication has 51 citations based on the available data.

See our FAQ for additional information.

Cite this paper

@article{Andrei2005QuasistaticVS, title={Quasi-static voltage scaling for energy minimization with time constraints}, author={Alexandru Andrei and Marcus T. Schmitz and Petru Eles and Zebo Peng and Bashir M. Al-Hashimi}, journal={Design, Automation and Test in Europe}, year={2005}, pages={514-519 Vol. 1} }