Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Discrete time modeling and stability analysis of TCP Vegas network with delay

시간 지연을 고려한 TCP Vegas 네트웍의 이산 시간 모델링 및 안정성 분석

  • You, Byung-Yong (Electronic and Electrical Engineering Department Pohang University of Science and Technology) ;
  • Koo, Kyung-Mo (Electronic and Electrical Engineering Department Pohang University of Science and Technology) ;
  • Lee, J.-Soo (Electronic and Electrical Engineering Department Pohang University of Science and Technology)
  • 유병용 (포항공과대학교 전자전기공학과) ;
  • 구경모 (포항공과대학교 전자전기공학과) ;
  • 이진수 (포항공과대학교 전자전기공학과)
  • Published : 2006.06.21
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Abstract

This thesis presents a new analysis method of Vegas network model in single link single source and a new version of Vegas for expanding asymptotically stable region. Actually since original Vegas model is difficult to analysis, we use a modified Vegas network model. Since there is a few tools to analyze nonlinear system with delay, developing other methods is very important and useful. We used state space model in discrete time. Using by Jury's criterion, we could find asymptotically stable region of Vegas network model. And it was a if and only if condition. Moreover, we proposed a new version of Vegas algorithm. To expand asymptotically stable region we modified the original Vegas model. The new analysis method and new Vegas algorithm were justified by ns-2 simulation. And as compare with other result, we could know our method has many advantages.

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