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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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IDE-LEACH Protocol for Trust and Energy Efficient Operation of WSN Environment

WSN의 에너지 효율적 운영을 위한 신뢰성이 보장된 IDE-LEACH 프로토콜

  • 조영복 (충북대학교 전자정보대학 소프트웨어학과) ;
  • 우성희 (한국교통대학교 의료정보공학과) ;
  • 이상호 (충북대학교 전자정보대학 소프트웨어학과)
  • Received : 2013.08.28
  • Accepted : 2013.09.30
  • Published : 2013.10.31
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Abstract

WSN consists of hundreds to thousands of sensor nodes. In order to solve the problem of energy consumption imbalance cluster head is reelected in every round, while node authentication scheme is utilized for secure communication. However, re-clustering increases the overhead of sensor nodes and during the node authentication phase the frequent AREQ/AREP message exchange also increases the overhead. Therefore, a secure and energy efficient protocol, by which overhead of sensor nodes is reduced and long time communication is achieved, is required for wireless sensor network. In this paper, an energy efficient and reliable IDE-LEACH protocol for WSN is proposed. The proposed protocol is prolongs networks lifetime about average 20% compared to the LEACH-based protocols and all attending nodes in communication form BS authentication consisted of trusted nodes.

WSN은 수백에서 수 만개에 달하는 SN들로 구성된다. WSN은 에너지 불균형 문제 해결을 위해 각 라운드마다 클러스터헤드를 새롭게 선택하고, 안전한 통신을 위해 노드 인증방식을 사용하고 있다. 그러나 이런 방법은 각 라운드마다 재-클러스터링을 수행함으로 SN의 오버헤드를 가중시키는 원인이 되고 안전한 통신을 제공하기 위한 인증단계는 빈번히 발생되는 AREQ/AREP 메시지 처리로 노드의 오버헤드를 더욱 가중시키고 있다. 라서 이 논문에서는 WSN 환경에서 에너지 효율적 운영과 신뢰성이 보장된 IDE-LEACH(Identity based Encryption : IDE) 프로토콜을 제안한다. 제안 프로토콜은 기존 LEACH 기반의 프로토콜보다 통신에 평균적으로 20%까지 네트워크 수명을 연장하였고, 통신에 참여하는 모든 노드는 기지국으로부터 인증을 거친 신뢰할 수 있는 노드들로 구성된다.

Keywords

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