한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

  • 제34권6B호
  • /
  • Pages.641-647
  • /
  • 2009
  • /
  • 1226-4717(pISSN)
  • /
  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

임베디드 시스템을 위한 개선된 예측 동적 전력 관리 방법

An Improved Predictive Dynamic Power Management Scheme for Embedded Systems

  • 김상우 (서강대학교 전자공학과 CAD & ES 연구실) ;
  • 황선영 (서강대학교 전자공학과 CAD & ES 연구실)
  • 발행 : 2009.06.30
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초록

본 논문은 임베디드 시스템에서 불필요한 전력 소모를 감소하기 위해 개선된 예측 동적 전력 관리 구조와 태스크 스케줄링 알고리듬을 제안한다. 제안된 알고리듬은 불필요한 전력 소모를 최소화하기 위해 미리 스케줄링을 한다. 제안된 예측 동적 전력 관리는 수행 오버 헤드를 경감하기 위해서 스케줄링 라이브러리를 제공한다. 실험 결과 제안된 알고리듬은 동적 전력 관리를 적용한 LLF 알고리듬과 비교하여 평균 22.3% 전력 소모 감소를 보인다.

This paper proposes an improved predictive dynamic power management (DPM) scheme and a task scheduling algorithm to reduce unnecessary power consumption in embedded systems. The proposed algorithm performs pre-scheduling to minimize unnecessary power consumption. The proposed predictive DPM utilizes a scheduling library provided by the system to reduce computation overhead. Experimental results show that the proposed algorithm can reduce power consumption by 22.3% on the average comparing with the LLF algorithm for DPM-enable system scheduling.

키워드

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