The backup reprovisioning problem of NEPCs on survivable WDM networks

Der Rong Din, Shu Ling Tung

Research output: Contribution to journalArticlepeer-review


Protection techniques for optical networks mainly rely on pre-allocated backup bandwidth, which may not be able to provide full protection guarantee when multiple failures occur in a network. After recovering from the previous failure, if failure occurs again, unprotected or vulnerable lightpaths cannot be recovered. In this paper, the minimal backup reprovisioning (MBR) problem is studied, in which, the node-encircling protecting cycles (NEPCs) scheme is considered for single node-failure on WDM networks. The NEPC Recovery Algorithm is proposed to recover the protecting capabilities of the NEPC. Simulation results show that the performance of the proposed method is better than that of the traditional one.

Original languageEnglish
Pages (from-to)121-130
Number of pages10
JournalOptical Fiber Technology
Issue number3
Publication statusPublished - 2012 May

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'The backup reprovisioning problem of NEPCs on survivable WDM networks'. Together they form a unique fingerprint.

Cite this