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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Richard A. Linke
  • Vol. 3, Iss. 4 — Apr. 1, 2004
  • pp: 247–260

Active light-path restoration in WDM networks [Invited]

Mohamed Azim, Xiaohong Jiang, Md. Mamun Khandker, Susumu Horiguchi, and Pin-Han Ho  »View Author Affiliations


Journal of Optical Networking, Vol. 3, Issue 4, pp. 247-260 (2004)
http://dx.doi.org/10.1364/JON.3.000247


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Abstract

Feature Issue on Next-Generation WDM Network Design and Routing (WDMN)

The increasing demand for bandwidth that has resulted from the emergence of various bandwidth-thirsty applications has increased the need for employing WDM as a dominant technology for the next-generation optical internet. As these networks carry gigantic amounts of information, survivability has become a primary and basic need for them. Although the available proactive protection schemes provide a 100% restoration guarantee, they require huge redundancy and usually result in a very high blocking probability. We propose a novel active restoration scheme that restores a failed primary lightpath based on multiple predefined but nonreserved backup paths along the primary path. Extensive simulation results based on three typical test networks indicate that with a small increase in restoration time, our new restoration scheme can reduce the blocking probability and the capacity requirement significantly while guaranteeing a very high restoration probability.

© 2004 Optical Society of America

OCIS Codes
(060.4250) Fiber optics and optical communications : Networks
(350.0350) Other areas of optics : Other areas of optics

ToC Category:
Next-Generation WDM Network Design and Routing

History
Original Manuscript: January 8, 2004
Revised Manuscript: January 8, 2004
Published: March 31, 2004

Virtual Issues
Next-Generation WDM Network Design and Routing (2004) Journal of Optical Networking

Citation
Mohamed Azim, Xiaohong Jiang, Md. Mamun Khandker, Susumu Horiguchi, and Pin-Han Ho, "Active light-path restoration in WDM networks [Invited]," J. Opt. Netw. 3, 247-260 (2004)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jon-3-4-247

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