한국항행학회논문지 (Journal of Advanced Navigation Technology)

  • 제17권2호
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  • Pages.218-224
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  • 2013
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  • 1226-9026(pISSN)
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  • 2288-842X(eISSN)
한국항행학회 (The Korean Navigation Institute)
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무선 멀티미디어 센서 네트워크에서 PQS를 이용한 트래픽 혼잡제어

Traffic Congestion Control Using PQS in Wireless Multimedia Sensor Networks

  • 이종득 (전북대학교 전자공학부)
  • Lee, Chong-Deuk (Division of Electronic Engineering, Chonbuk national University)
  • 투고 : 2013.04.04
  • 심사 : 2013.04.30
  • 발행 : 2013.04.30
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초록

무선 멀티미디어 센서네트워크 (WMSN : Wireless Multimedia Sensor Networks)에서 업 링크 오버플로우는 자원 소모, 지연, 그리고 트래픽 혼잡을 가중시킨다. 본 논문에서는 중요도를 이용한 새로운 트래픽 혼잡 제어 기법을 제안한다. 제안된 기법은 미디어 트래픽을 분산하여 혼잡을 제어하며, 우선순위에 따라 패킷들을 공평하게 제어한다. 이때 패킷들을 공평하게 제어하기 위해 패킷 큐 스케줄러 PQS (Packet Queue Scheduler)를 제안하며, 제안된 PQS는 노드들의 특정 위치에 관계없이 모든 센서 노드들에게 공평한 기회를 제공한다. 시뮬레이션 결과 제안된 기법이 다른 비교 결과 기법들에 비해서 처리율, 지연율, 링크 품질, 그리고 버퍼 큐 제어율이 효율적임을 보인다.

Uplink overflow in WMSN (Wireless Multimedia Sensor Networks) aggravates the resource consumption, delay, and traffic congestion. This paper proposes a new traffic congestion control mechanism using popularity. The proposed mechanism controls congestions by dispersing the media traffic, and it control fairly packets according to priority. This paper proposes PQS (Packet Queue Scheduler) to control fairly packets, and the proposed mechanism provides a fair opportunity to all sensor nodes without a specific location. The simulation results show that the proposed mechanism achieves improved performance in throughput, delay ratio, link quality, and buffer queue control ratio compared with those of other existing methods.

키워드

참고문헌

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