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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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An Effective Cross Layer-based Multimedia Transmission Algorithm over Multi-hop Mobile Ad Hoc Network

다중 홉 이동 애드 혹 네트워크에서 크로스레이어 기반의 효과적인 멀티미디어 전송 알고리즘

  • 이경철 (포항공과대학교 컴퓨터공학과 멀티미디어 통신/네트워킹 연구실) ;
  • 김완 (포항공과대학교 컴퓨터공학과 멀티미디어 통신/네트워킹 연구실) ;
  • 송황준 (포항공과대학교 컴퓨터공학과 멀티미디어 통신/네트워킹 연구실)
  • Received : 2010.03.05
  • Published : 2010.05.31
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Abstract

In this paper, we present an effective cross layer-based video transmission algorithm over multi-hop mobile ad hoc networks. The proposed algorithm selects the most efficient PHY mode of wireless LAN multi-rate service at each node in a distributed way based on the available information at application, MAC, and physical layers in order to minimize end-to-end delay and maintain packet loss rate in tolerable range at the receiver. Finally, experimental results are provided to show superior performance of the proposed algorithm.

본 논문에서는 다중 홉 이동 애드 혹 네트워크에서 크로스 레이어 (Cross layer) 기반의 효과적인 멀티미디어 전송 알고리즘을 제안한다. 제안 알고리즘은 멀티레이트를 지원하는 IEEE 802.11 MAC을 기반으로 하며, 수신 노드에서 패킷 손실률 (Packet Loss Rate, PLR)이 제약 조건 이내를 유지하고 종단간 지연시간이 최소가 되도록 하기 위해 경로상의 각 노드들은 MAC 계층에서 응용계층의 데이터 특성과 물리 계층의 채널정보를 이용하여 효과적인 전송 모드를 선택 한다. 마지막으로 실험을 통하여 제안 알고리즘의 우수성을 확인 한다.

Keywords

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