The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Congestion Control Mechanism for Efficient Network Environment in WMSN

무선 멀티미디어 센서 네트워크에서 효율적인 네트워크 환경을 위한 혼잡 제어 메커니즘

  • 박정현 (순천대학교 멀티미디어공학과) ;
  • 이성근 (순천대학교 멀티미디어공학과) ;
  • 오원근 (순천대학교 멀티미디어공학과)
  • Received : 2014.12.02
  • Accepted : 2015.02.09
  • Published : 2015.02.28
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Abstract

Wireless multimedia sensor network senses and transfers mass multimedia data. Also, it is sensitive to latency. This thesis proposes a routing technique based on traffic priority in order to improve the network efficiency by minimizing latency. In addition, it proposes a congestion control mechanism that uses packet service time, packet inter-arrival time, buffer usage, etc. In this thesis, we verified the reduction of packet latency in accordance with the quality level of packet as a result of the performance analysis through the simulation method. Also, we verified that the proposed mechanism maintained a reliable network state by preventing packet loss due to network overload.

대용량 멀티미디어 데이터를 센싱 및 전송하기 위한 무선 멀티미디어 센서 네트워크는 지연에 민감한 특징을 가진다. 본 논문은 멀티미디어 데이터를 전송하기위한 효율적인 네트워크 환경을 위해 트래픽에 따른 우선순위 라우팅 방법을 통한 지연을 최소화 시키는 메커니즘을 제안한다. 또한 노드에 도착하는 패킷들의 도착, 처리 되는 시간차와 버퍼 점유율을 고려하여 혼잡 제어 메커니즘을 제안한다. 시뮬레이션을 통해 성능 분석을 수행하여 제안한 라우팅 방법으로 인해 패킷 지연이 감소되는 것을 확인 하였고, 네트워크에 많은 양의 데이터가 유입되었을 때 혼잡을 감지하고 제어하여 안정적인 네트워크 상태를 유지하는 것을 검증하였다.

Keywords

References

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