Centralized Versus Distributed Re-provisioning in Optical Mesh Networks

  • Chadi Assi
  • Wei Huo
  • Abdallah Shami
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3420)

Abstract

Significant progress has been made towards making optical networks 100% restorable in the event of single link failures through protection schemes with preplanned spare capacity. Currently dual failures are considered not uncommon and finding shows that designs offering complete dual failures restorability require more than double the amount of spare capacity. In this paper, we study the impact of re-provisioning on improving the overall network robustness and we compare two different re-provisioning schemes under both centralized and distributed implementations. We show that under distributed implementation, network robustness degrades due to excessive contentions and accordingly we propose a solution to mitigate the impact of contentions. We evaluate the performance of our proposal through simulation experiments.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Chadi Assi
    • 1
  • Wei Huo
    • 1
  • Abdallah Shami
    • 2
  1. 1.Concordia Institute for Information Systems EngineeringConcordia University 
  2. 2.Department of Electrical and Computer EngineeringUniversity of Western Ontario 

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