Journal of the Korea Society of Computer and Information (한국컴퓨터정보학회논문지)

Korean Society of Computer Information (한국컴퓨터정보학회)
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Energy-Efficient Clustering Scheme using Candidates Nodes of Cluster Head

클러스터헤더 후보노드를 이용한 에너지 효율적인 클러스터링 방법

  • 조영복 (충북대학교 전자계산학과) ;
  • 김광득 (한국에너지기술연구원) ;
  • 유미경 (충북대학교 전자계산학과) ;
  • 이상호 (충북대학교 전자정보대학 소프트웨어학과)
  • Received : 2010.11.01
  • Accepted : 2010.11.25
  • Published : 2011.03.31
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Abstract

One of the major challenges of minimum energy consumption for wireless sensor networks(WSN) environment. LEACH protocol is hierarchical routing protocol that obtains energy efficiency by using clustering. However, LEACH protocol in each round, because the new cluster configuration, cluster configuration, whenever the energy consumed shorten the life of the network. Therefore in this paper, the cluster is formed in WSN environment in early stage and the problems with energy waste have been solved by selecting C-node. In the initial round of proposed model uses 26 percent more than traditional LEACH energy consumption. However, as the round is ongoing, it has been proved by the network simulation tool that the waste of energy could be diminished up to 35%.

센서 네트워크에서 에너지 소비를 최소화하는 것은 가장 중요한 이슈 중 하나이다. 클러스터링 방법 중 LEACH 프로토콜은 에너지를 효율적으로 관리하기 위해 다수의 클러스터 영역을 분할하는 계층적 방법으로 동작된다. 그러나 LEACH 프로토콜은 매 라운드마다 새로운 클러스터를 구성하기 때문에 클러스터를 구성 할 때마다 소비되는 에너지는 전체 네트워크 수명을 단축시키는 요인으로 작용한다. 따라서 이 논문에서는 센서네트워크 환경에서 초기 라운드에 클러스터를 형성하고 클러스터헤더 후보노드를 선정하여 에너지 낭비를 해결하였다. 제안 모델은 초기 라운드에는 기존 LEACH보다 26% 에너지 소모가 증가한다. 그러나 라운드가 지속될수록 제안 방법은 최대 35%까지 전체 에너지소비가 감소됨을 네트워크 시뮬레이션 툴(NS-2)를 이용해 증명하였다.

Keywords

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