The Journal of the Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회논문지)

The Institute of Internet, Broadcasting and Communication (한국인터넷방송통신학회)
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A link control method using self relay signal in wireless sensor networks

무선 센서 네트워크에서 자기 전달 신호를 활용한 전송 제어 방법

  • 김승천 (한성대학교 정보통신공학과)
  • Received : 2009.03.05
  • Published : 2009.04.30
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Abstract

Reliability should be assured to support the stable ubiquitous sensor network services in wireless sensor networks. Data transmission reliability is the most important one in the reliability factors in USN. When we consider the wireless communication environment of sensor networks, data transmission reliability requires the performance improvement. For this, this paper introduces the method that can handle the reliability and the performance together. The proposed scheme uses the self relay signal between sensor nodes to deliver the ACK and the next data is scheduled to be sent on acceptance of this self relay signal. For the evaluation of the performance improvement, the analysis and the simulation have been done.

안정적인 유비쿼터스 센서 네트워크 서비스가 운용되기 위해서는 센서 네트워크 내에서 신뢰성이 확보되어야 하며, 이중에서도 전송 신뢰성의 확보는 다른 어떤 것보다 시급하다. 특히 무선 센서 네트워크의 활용이라는 측면을 보았을 때 전송 신뢰성은 단순히 안정적인 전송만을 생각하기 보다는 성능 향상이라는 부분도 생각해야 한다. 이를 위해서 본 논문에서는 전송 신뢰성 확보와 성능 개선이라는 두가지 모두를 확보 할 수 있는 방법을 제안한다. 제안하는 방법은 무선 환경 내에서의 자기 전달 신호를 활용하여 ACK를 대신하고 이를 바탕으로 다음 데이터의 전송을 시작하도록 한다. 성능 개선을 확인하기 위해서 제안 방법의 수학적 분석과 시뮬레이션을 통한 검증을 실시한다.

Keywords

References

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