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

  • 제37B권9호
  • /
  • Pages.767-777
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  • 2012
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  • 1226-4717(pISSN)
  • /
  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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이동성 있는 무선 센서 네트워크에서 노드의 상태를 고려한 에너지 효율적인 토폴로지 제어 방법

An Energy Efficient Topology Control Algorithm using Additional Transmission Range Considering the Node Status in a Mobile Wireless Sensor Network

  • 윤명준 (연세대학교 전기전자공학과 유비넷 연구실) ;
  • 전한얼 (한국방송통신전파진흥원) ;
  • 김석규 (안동대학교 정보통신공학과) ;
  • 이재용 (연세대학교 전기전자공학과 유비넷 연구실)
  • 투고 : 2012.05.03
  • 심사 : 2012.08.22
  • 발행 : 2012.09.30
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초록

Topology control increases channel efficiency by controlling transmission power of a node, and as a result, network lifetime and throughput are increased. However, reducing transmission range causes a network connectivity problem, especially in mobile networks. When a network loses connectivity, the network topology should be re-configured. However, topology re-configuration consumes lots of energy because every node need to collect neighbor information. As a result, network lifetime may decrease, even though topology control is being used to prolong the network lifetime. Therefore, network connectivity time needs to be increased to expend network lifetime in mobile networks. In this paper, we propose an Adaptive-Redundant Transmission Range (A-RTR) algorithm to address this need. A-RTR uses a redundant transmission range considering a node status and flexibly changes a node's transmission range after a topology control is performed.

키워드

참고문헌

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