Energy management of DVS-DPM enabled embedded systems powered by fuel cell-battery hybrid source

Jianli Zhuo, Chaitali Chakrabarti, Naehyuck Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations

Abstract

Dynamic voltage scaling (DVS) and dynamic power management (DPM) are the two main techniques for reducing the energy consumption of embedded systems. The effectiveness of both DVS and DPMneeds to be considered in the development of an energy management policy for a system that consists of both DVS-enabled and DPM-enabled components. The characteristics of the power source also have to be explicitly taken into account. In this paper, we propose a policy to maximize the operational lifetime of a DVS-DPM enabled embedded system powered by a fuel cell-battery (FC-B) hybrid source. We show that the lifetime of the system is determined by the fuel consumption of the fuel cell (FC), and that the fuel consumption can be minimized by a combination of a load energy minimization policy and an optimal fuel flow control policy. The proposed method, when applied to a randomized task trace, demonstrated superior performance compared to competing policies based on DVS and/or DPM.

Original languageEnglish (US)
Title of host publicationISLPED'07
Subtitle of host publicationProceedings of the 2007 International Symposium on Low Power Electronics and Design
Pages322-327
Number of pages6
DOIs
StatePublished - Dec 17 2007
EventISLPED'07: 2007 International Symposium on Low Power Electronics and Design - Portland, OR, United States
Duration: Aug 27 2007Aug 29 2007

Publication series

NameProceedings of the International Symposium on Low Power Electronics and Design
ISSN (Print)1533-4678

Other

OtherISLPED'07: 2007 International Symposium on Low Power Electronics and Design
CountryUnited States
CityPortland, OR
Period8/27/078/29/07

Keywords

  • DPM
  • DVS
  • Embedded system
  • Fuel cell
  • Hybrid power

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Zhuo, J., Chakrabarti, C., & Chang, N. (2007). Energy management of DVS-DPM enabled embedded systems powered by fuel cell-battery hybrid source. In ISLPED'07: Proceedings of the 2007 International Symposium on Low Power Electronics and Design (pp. 322-327). (Proceedings of the International Symposium on Low Power Electronics and Design). https://doi.org/10.1145/1283780.1283849