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A Frequency Selection Algorithm for Power Consumption Minimization of Processor in Mobile System

이동형 시스템에서 프로세서의 전력 소모 최소화를 위한 주파수 선택 알고리즘

  • Kim, Jae Jin ;
  • Kang, Jin Gu ;
  • Hur, Hwa Ra ;
  • Yun, Choong Mo
  • 김재진 (극동정보대학 컴퓨터정보과) ;
  • 강진구 (극동정보대학 애니메이션과) ;
  • 허화라 (송호대학 컴퓨터정보과) ;
  • 윤충모 (서일대학 정보기술학부)
  • Received : 2008.02.28
  • Accepted : 2008.03.10
  • Published : 2008.03.30

Abstract

This paper presents a frequency selection algorithm for minimization power consumption of processor in Mobile System. The proposed algorithm has processor designed low power processor using clock gating method. Clock gating method has improved the power dissipation by control main clock through the bus which is embedded clock block applying the method of clock gating. Proposed method has compared power consumption considered the dynamic power for processor, selected frequency has considered energy gain and energy consumption for designed processor. Or reduced power consumption with decreased processor speed using slack time. This technique has improved the life time of the mobile systems by clock gating method, considered energy and using slack time. As an results, the proposed algorithm reduce average power saving up to 4% comparing to not apply processor in mobile system.

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