Photonic Network Communications

, Volume 14, Issue 3, pp 265–271 | Cite as

Improving survivability for multi-link failures with reprovisioning in WDM mesh networks

  • Lei Guo
  • Xingwei Wang
  • Lemin Li


This article proposes a new heuristic algorithm, called Shared Multi-sub-backup-paths Reprovisioning (SMR), to improve the survivability for multi-link failures in WDM mesh networks. In SMR, each connection will be initially assigned one primary path, one backup path, and multiple sub-backup paths. When failures occur, based on the corresponding policy SMR will reprovision the primary or backup resources for these connections affected by the failures. Compared to previous algorithms, the survivable performance of SMR can be significantly improved.


WDM mesh networks Survivability Multi-link failures Reprovisioning 


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.College of Information Science and EngineeringNortheastern UniversityShenyangChina
  2. 2.Key Laboratory of Broadband Optical Fiber Transmission and Communication NetworksUniversity of Electronic Science and Technology of ChinaChengduChina

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