Dynamic power management with hybrid power sources

Jianli Zhuo, Chaitali Chakrabarti, Kyungsoo Lee, Naehyuck Chang

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

8 Scopus citations


DPM (Dynamic Power Management) is an effective technique for reducing the energy consumption of embedded systems that is based on migrating to a low power state when possible. While conventional DPM minimizes the energy consumption of the embedded system, it does not utilize the properties of the power source. Alternative power sources such as fuel cells (FCs) have substantially different power and efficiency characteristics that have to be taken into account while developing policies that maximize their operational lifetime. In this paper, we present a new DPM policy for embedded systems powered by FC based hybrid source. We develop an optimization framework that explicitly considers the FC system efficiency and is aimed at minimizing the fuel consumption. Next we apply this optimization framework on top of a prediction based DPM policy to develop a new fuel-efficient DPM scheme. The proposed algorithm was applied to a real trace based MPEG encoding example and demonstrated up to 32% more system lifetime extension compared to a competing scheme.

Original languageEnglish (US)
Title of host publication2007 44th ACM/IEEE Design Automation Conference, DAC'07
Number of pages6
StatePublished - Aug 2 2007
Event2007 44th ACM/IEEE Design Automation Conference, DAC'07 - San Diego, CA, United States
Duration: Jun 4 2007Jun 8 2007

Publication series

NameProceedings - Design Automation Conference
ISSN (Print)0738-100X


Other2007 44th ACM/IEEE Design Automation Conference, DAC'07
Country/TerritoryUnited States
CitySan Diego, CA


  • DPM
  • Embedded system
  • Fuel cell
  • Hybrid power

ASJC Scopus subject areas

  • Hardware and Architecture
  • Control and Systems Engineering


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