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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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A Latency-Secured Algorithm for Delay-Sensitive Large-Scale Sensor Networks

지연에 민감한 대규모 센서네트워크에서 지연시간 보장을 위한 알고리즘

  • ;
  • 김기두 (국민대학교 대학원 전자공학과) ;
  • 박영일 (국민대학교 대학원 전자공학과)
  • Received : 2010.05.10
  • Published : 2010.05.31
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Abstract

When a sensor network is used for monitoring environments in large area or transmitting information in a u-City the number of nodes becomes very large. One of the problems with this application is the increased time delay, especially in reverse direction. In this paper, we propose a new algorithm that can minimize the latency of reverse packet in large sensor network. Analysis shows that the proposed scheme can reduce the latency by more than 90% when compared to Zigbee, while the energy consumption is maintained.

센서네트워크가 넓은 영역에서의 환경 감시 혹은 u-City에서의 정보전송 등에 이용될 경우 노드 개수는 많이 증가하게 된다. 이 때 발생하는 문제점 중 하나는 역방향 전송 지연시간이 급격하게 늘어난다는 점이다. 이 논문 에서는 대규모 센서네트워크에서 역방향 패킷의 지연시간을 최소화할 수 있는 알고리즘을 제시하였다. 지그비 방식과 비교할 때 에너지 소비는 지그비와 거의 비슷하면서도 지연시간을 90% 이상 줄일 수 있음을 확인하였다.

Keywords

References

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