Journal of the Institute of Electronics and Information Engineers (전자공학회논문지)

The Institute of Electronics and Information Engineers (대한전자공학회)
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An Energy Aware Network Construction and Routing Method for Wireless Sensor Network

무선센서네트워크를 위한 에너지 인지형 네트워크 구성 및 라우팅 기법

  • Received : 2012.04.05
  • Published : 2012.09.25
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Abstract

In Wireless Sensor Networks (WSNs) where deployed sensors are not stationary, the most important demand of is to design a cost effective and reliable network. This paper proposes an energy aware network construction and routing scheme, which is based on the hierarchical approach to distribute the task in some sensors in order to prolong the network lifetime. It aims to make even the energy consumption on constitute nodes. With the node hierarchy, the sink initiates the construction by electing gateway nodes in the network and the elected gateway nodes participate to form logical clusters by electing a cluster head in each cluster. Then, the cluster heads aggregate data from the sensing sensors and transmit the data to the sink through the gateway. Our simulation result illustrates that the proposed scheme provides a basement to reduce the source of energy dissipation in network construction, and as well as in data routing.

센서들이 동적으로 운용되는 무선네트워크 환경에서는 비용을 줄이고 신뢰성 있는 네트워크를 구축하는 것이 무엇보다 중요하다. 본 논문에서는 네트워크 수명을 연장하기 위해 노드들이 수행하는 작업을 다수의 노드에게 분담하는 계층구조 기반의 에너지 인지형 네트워크 구성과 라우팅 기법을 제안한다. 이는 궁극적으로 노드들이 공평하게 에너지를 소모하기 위함이다. 노드들의 계층 구조에서 싱크노드는 일단의 게이트웨이 노드를 선정한다. 선정된 게이트웨이 노드는 각각의 클러스터 안에서 클러스터 헤드를 선정함으로써 논리적 클러스터를 구성한다. 클러스터 헤드는 감지 센서들로부터 데이터를 수집하고, 수집된 데이터는 게이트웨이 노드를 통해 싱크노드로 전달된다. 실험결과 제안한 네트워크 구조는 에너지 소모의 원천을 감소시키고, 효율적으로 데이터를 전달하는 기반이 되고 있음을 확인하였다.

Keywords

References

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