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

  • 제34권9B호
  • /
  • Pages.867-875
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  • 2009
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  • 1226-4717(pISSN)
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  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

무선 신체 망에서 세미-마르코프 모델을 이용한 다중 오류에 대한 모델링 및 분석

Modeling and Analysis of Multi-type Failures in Wireless Body Area Networks with Semi-Markov Model

  • 왕송 (경북대학교 전자전기컴퓨터공학부 정보통신망 신기술 연구실) ;
  • 천승만 (경북대학교 전자전기컴퓨터공학부 정보통신망 신기술 연구실) ;
  • 박종태 (경북대학교 전자전기컴퓨터공학부 정보통신망 신기술 연구실)
  • 발행 : 2009.09.30
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초록

무선 신체망 (WBAN: Wireless Body Area Network)은 생체 신호를 검출하고 전송하기 때문에 인간의 생명과 직결되어 있다 그러므로 무선 신체망은 다른 망과 비교해 망의 신뢰성이 극도로 높아야 하기 때문에 이 신뢰성과 관련된 연구가 매우 중요한 분야로 부각되고 있다. 본 논문에서는 다중 오류 (multi-type failures) 가 발생한 무선 신체 망에서 노드의 오동작들에 대해 분석하고 오동작 분석에 대한 새로운 모델을 제시한다. 오동작 모델링을 위해, 각 노드들을 라우팅 기능의 유무에 따라 분류하고, 노드의 에너지가 완전 소비되었거나 노드가 악의적인 공격에 의해 오류가 발생되었을 경우 각 노드들의 동작을 세미 마르코프 프로세스 (Semi-Markov Process)를 이용하여 모델링하였다. 본 논문에서 제시된 모델은 다중 오류 (multi-type failures) 환경에서 무선신체망의 신뢰성 분석에 매우 유용하다.

The reliability of wireless body area networks is an important research issue since it may jeopardize the vital human life, unless managed properly. In this article, a new modeling and analysis of node misbehaviors in wireless body area networks is presented, in the presence of multi-type failures. First, the nodes are classified into types in accordance with routing capability. Then, the node behavior in the presence of failures such as energy exhaustion and/or malicious attacks has been modeled using a novel Semi-Markov process. The proposed model is very useful in analyzing reliability of WBANs in the presence of multi-type failures.

키워드

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