한국시뮬레이션학회논문지 (Journal of the Korea Society for Simulation)

한국시뮬레이션학회 (The Korea Society for Simulation)
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ATM 스위치를 위한 대기행렬의 셀 스케쥴링 방식 제안 및 성능평가

Performance Evaluation and Proposal of Cell Scheduling Method of Queue for the ATM Switch

  • 안정희 (두원공과대학 소프트웨어개발과)
  • 발행 : 1999.03.01
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초록

A cell scheduling method of Queue for the ATM switch is proposed and simulated. In this paper, we present the cell scheduling method proper to the proposed queue and the improved queue with Queue Sharing(QS) structure for CBR, VBR, ABR traffic. The proposed QS structure minimizes the CLS(Cell Loss Ratio) of ABR traffic and decreases the CLR of bursty VBR traffic. Also we propose a cell scheduling method using VRR(Variable Round Robin) scheme proper to the high-speed(ATM) switch. The VRR scheme provides a fairness in terms of service chance for the queues in the ATM switch as well as QOS of their cell delay characteristic of CBR and VBR traffic, QOS of ABR CLR. The simulation results show the proposed method achieves excellent CLR and average cell delay performance for the various ATM traffic services in the Queue Sharing structure.

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참고문헌

  1. 한국통신학회논문지 v.20 no.8 ATM망에서 ABR 서비스를 위한 트래픽 제어 연구 이우섭;박홍식;황치정
  2. ATM Forum. Traffic Management Specification Version 4.0 The ATM Forum Technical Committe
  3. IEEE INFOCOM'90 Comparative Performance study of space priority mechanisms for ATM networks Hans Kroner
  4. IEEE J. Selected Areas in Communications v.9 no.3 Priority Management in ATM Switching Node Hans Kroner
  5. Traffic Control and Congestion Control in B-ISDN ITU-T Recommendation I. 371
  6. IEEE INFOCOM'89 Scheduling Policies for Real-Time and Non-Real-Time Traffic in Statistical Multiplexer Renu Chipalkatti;James F.Kurose;Don Towsley
  7. IEEE JSAC v.9 no.7 Real-Time Scheduling with Quality Of Service Contraints J.M.Hyman(et al.)
  8. 한국통신학회논문지 v.9 no.8 이중 문턱값 설정에 의한 ATM 망의 트래픽 제어기법 정상국;진용옥
  9. IEEE Journal on selected areas in COMM v.15 no.5 Design of a Generalized Priority Queue Manager for ATM Switches H.Jonathan Chao(et al)
  10. 전자공학회논문지 v.34 no.11 ABR 트래픽 제어를 위한 버퍼 Readout 스케쥴링 구창회;이재호