무선 센서 네트워크를 위한 수신 예측 기반 주기 적응적 웨이크업 기법

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이경훈;이학재;김영민
Lee, Kyung-Hoon;Lee, Hak-Jai;Kim, Young-Min

  • 투고 : 2015.09.23
  • 심사 : 2015.11.23
  • 발행 : 2015.11.30

초록

무선 센서 네트워크에서 배터리로 동작하는 센서 노드 또는 수집 노드를 위한 에너지 효율을 개선한 MAC 프로토콜은 중요한 성능 요소이다. 본 논문에서는 무선 센서 네트워크를 위한 MAC 프로토콜에서 활성구간과 수면구간을 반복하여 수행하는 Duty Cycle 기법의 고정적인 활성 구간에 따른 제한적인 성능을 개선하기 위해 수신 예측 기반의 주기 적응적 웨이크업 제어 기법을 제안한다. 제안된 기법은 CC2500 RF 트랜시버 및 C8051F330 마이크로컨트롤러 기반의 무선 노드를 이용한 성능평가를 통해 최소의 활성구간을 분석하였고, 주기 변화에 따라 적응적으로 수면구간을 증가시켜 에너지 성능을 향상시킬 수 있음을 확인하였다.

키워드

저 전력;무선 센서 네트워크;웨이크업;듀티 사이클

참고문헌

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과제정보

연구 과제 주관 기관 : 한국연구재단