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A Model for the Performance Analysis of SPL-OBS Core Nodes with Deflection Routing

  • Dang Thanh Chuong
  • Vu Duy Loi
  • Vo Viet Minh Nhat
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7654)

Abstract

In optical burst switching networks, techniques like wavelength conversion, optical buffer or deflection routing are often applied to resolve a contention problem that may cause data loss. Instead of the planned output port, the contended burst is sent to a new output port, on a new path to its destination by the deflection routing. In the case of wavelength conversion, the arriving burst is conveyed on a new available wavelength, but only partial wavelength conversion is available due to the technology constraint. This article considers a model for the performance evaluation of OBS core nodes with the Share-Per-Link(SPL) architecture where partial wavelength converters are distributed at each output port. A continuous-time Markov chain model is proposed to analyze the performance of OBS core nodes operated with the deflection routing rule.

Keywords

OBS node Blocking Probability Deflection Probability continuous- time Markov chain state transition rate matrix 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Dang Thanh Chuong
    • 1
  • Vu Duy Loi
    • 2
  • Vo Viet Minh Nhat
    • 1
  1. 1.Hue UniversityVietnam
  2. 2.Center of Information TechnologyNational Office of Communist PartyVietnam

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