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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Data Aggregation Method Guaranteeing Minimum Traffic in Multi-hop Automatic Meter Reading Networks

다중 홉 원격검침망에서의 최소 트래픽 보장을 위한 데이터 수집기법에 관한 연구

  • 황광일 (인천대학교 임베디드시스템공학과 임베디드네트워크시스템구조연구실)
  • Received : 2011.04.25
  • Accepted : 2011.06.30
  • Published : 2011.07.30
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Abstract

Due to the advantages of a conveniet, inexpensive installation, flexibility, and scalability, Wireless AMR systems are recently preferred over wired AMR systems. However, a multi-hop supported AMR network, which generally covers large areas, may create energy wastage problem, energy unbalance, and high interference hazard due to a large amount of concurrent-intensive metering data in the network. Therefore in this paper we propose a novel data gathering method which can solve abovementioned problems as well as conserve energy, by reducing the traffic in the network. In addition, the experimental results demonstrate that the proposed scheme shows superior performance to the conventional data transmission method.

무선통신 기반의 원격검침 시스템은 설치의 용이함, 설비공사 및 유지보수 비용절감, 다양한 검침시스템으로의 적용의 유연성, 그리고 네트워크 확장성의 용이함 등의 장점으로 인해 최근 다양한 원격검침분야에서 활발히 활용되고 있다. 하지만, 이같은 다수의 장점에도 불구하고, 멀티 홉 기반의 원격검침망에서는 매 검침데이타 획득시마다 과다한 양의 트래픽을 발생시킴으로써, 데이터 충돌과 간섭의 확률을 증대시키고, 불필요한 전송으로 인한 에너지 낭비와 함께 특정 노드들의 에너지만 급격하게 소모되는 에너지 불균형 현상을 야기하고 있다. 그리하여 본 논문에서는 멀티홉 기반의 무선 원격검침망에서 발생하는 트래픽의 양을 최소로 줄임으로써 검침망의 각 노드들의 에너지 보존은 물론 다양한 문제점들을 해결할 수 있는 효율적인 검침데이타 수집기법을 제안하고, 성능평가를 통해 제안하는 기법에 대한 성능의 우수성을 입증한다.

Keywords

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