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Title: Performance analysis of dynamic light-path configuration for symmetric WDM ring networks
Authors: Tachibana, Takuji
Kasahara, Shoji
タチバナ, タクジ
カサハラ, ショウジ
橘, 拓至
笠原, 正治
Issue Date: Feb-2003
Publisher: Nara Institute of Science and Technology
Series/Report no.: Information Science Technical Report ~ TR2003001
Abstract: In this paper, we propose a dynamic lightpath conguration method for WDM ring network. With this method, lightpaths are established according to the congestion state of node and are released after some holding time. The performance of the proposed method is evaluated in light and heavy traffic cases. In the light traffic case, a single node in WDM ring network is modeled as a multiple queueing system, while M/G/1/K and M/G/c/c queues are used for the heavy traffic case. In both cases, loss probability of packet flow and wavelength utilization factor are derived. We also explore the performance of our proposed method by simulation. Numerical examples show that our analytical models in both cases are useful to predict loss probability of packet flow and wavelength utilization factor. Moreover, in the light traffic case, it is shown that small holding time is effective even when lightpath establishment/release time is small.
ISSN: 0919-9527
Text Version: author
Appears in Collections:テクニカルレポート / Technical Report

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