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

  • 제29권9A호
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  • Pages.973-982
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  • 2004
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  • 1226-4717(pISSN)
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  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

고성능 입력 큐스위치를 위한 통제된 슈도요구 이중화 라운드로빈 매칭 조정 알고리즘

Well-Regulated Pseudo-request Dual Round-Robin Matching Arbitration Algorithm for High Performance Input-Queued Switches

  • 발행 : 2004.09.01
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초록

고속 스케듈링 기법은 입력 큐 스위치의 성능을 극대화하기 위해 필요하다 가상 출력큐 스위치 구조에 관하여 지금까지 iSLIP, DRRM 과 같은 라운드로빈 스케듈링 기법이 제안되어 왔다 iSLIP 방식은 높은 성능을 보여주고 있고 이미 하드웨어 구현이 되어 있고 DRRM 또한 iSLIP 보다 간단하고 성능에 더 좋음을 나타내고 있지만 , 울다 라운드로벤의 포인터통기 문제를 효과적으로 풀지 못하고 있다 본 논문에서 제안된 딸고리즘은 DRRM 알고리즘 에 기초로써 새롭게 제안되었고 포인터를 항상 비동기되도록 유지하는 특정이 있다. 또한 라운드로빈 방식을 그대로 견지하므로써 구현이 간편한 특성을 가지고 있다 시뮬레이션 결과에 의하면 제안된 알고리즘은 다양한 트래픽 모델에서 iSLIP 이나 DRRM 보다 더 좋은 성능을 보여주고 있다.

High-speed scheduling algorithms are required for high-performance input-queued switches to achieve good performance. Various Round-Robin scheduling algonthms for Virtual-Output-Queue (VOQ) switch architectures have been proposed, hke iSLIP, DRRM (Dual Round-Robin Matching). iSLIP can achieve high performance and have already been implemented in hardware. DRRM has been proved to achieve better performance and simpler than iSLIP But neither iSLIP nor DRRM can efficiently solve the problem of the Round-Robm pointers' desynchronization. In this paper, we have proposed "Well-Regulated Pseudo-request Dual Round-Robin Matching" Algorithm. It is developed from DRRM, and can always keep the pointers' desynchronization. Since our algorithm is based on the Round-Robin scheduling, it is also simple to be implemented. And simulation results also show that our proposed algonthm performs pretty well under various, traffic models.

키워드

참고문헌

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