Journal of KIISE:Information Networking (한국정보과학회논문지:정보통신)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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Multipath Multicast Routing by Traffic Splitting in IP Networks

IP망에서 트래픽 분할에 의한 다중경로 멀티캐스트 경로설정

  • 박구현 (홍익대학교 정보컴퓨터공학부) ;
  • 신용식 (SK Telecom Network연구원 4G개발팀)
  • Published : 2002.02.01
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Abstract

This paper proposes an IP(Internet Protocol) multicast routing method by multiple tree routes. Multiple trees, instead of a single tree, improve the quality of multicast services with nonlinear link cost and huge traffic demand. The proposed method adds tree routes until it satisfies target conditions, and it splits the multicast traffic demand into the chosen tree routes. We develop a mathematical model and optimal conditions for traffic splitting. The method works on the problems with many different simultaneous multicast traffic. Various experiments were carried and the results show that the new multicasting is fairly effective on end-to-end quality of services.

본 연구는 IP(Internet Protocol) 망에서 복수 트리경로에 의한 멀티캐스팅 방법을 제시한다. 트래픽 양에 대해 아크 비용이 비선형 함수이고 멀티캐스트 트래픽 수요가 대용량일 때, 단일의 트리경로 대신에 트래픽을 분할하여 복수개의 트리경로로 전송하는 것이 멀티캐스트 서비스 품질을 향상시킬 수 있다. 제시하는 멀티캐스팅 방법은 원하는 수준까지 트리경로를 추가하며, 주어진 트리경로 집합에 대해서 트래픽을 분할한다. 트래픽 분할을 위한 수학적 모형과 최적조건을 도출하였으며, 여러 개의 멀티캐스팅 트래픽을 동시에 전송하고자 할 때도 적용 가능하다. 적용 결과는 제안한 복수 트리경로에 의한 IP 멀티캐스팅 방법이 단-대-단 서비스 품질을 보장하는 데도 상당한 효과를 있음을 보인다.

Keywords

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