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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editor: Richard A. Linke
  • Vol. 5, Iss. 12 — Dec. 1, 2006
  • pp: 1071–1083

Algorithm for protecting light-trees in survivable mesh wavelength-division-multiplexing networks

Hongbin Luo, Lemin Li, and Hongfang Yu  »View Author Affiliations


Journal of Optical Networking, Vol. 5, Issue 12, pp. 1071-1083 (2006)
http://dx.doi.org/10.1364/JON.5.001071


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Abstract

Wavelength-division-multiplexing (WDM) technology is expected to facilitate bandwidth-intensive multicast applications such as high-definition television. A single fiber cut in a WDM mesh network, however, can disrupt the dissemination of information to several destinations on a light-tree based multicast session. Thus it is imperative to protect multicast sessions by reserving redundant resources. We propose a novel and efficient algorithm for protecting light-trees in survivable WDM mesh networks. The algorithm is called segment-based protection with sister node first (SSNF), whose basic idea is to protect a light-tree using a set of backup segments with a higher priority to protect the segments from a branch point to its children (sister nodes). The SSNF algorithm differs from the segment protection scheme proposed in the literature in how the segments are identified and protected. Our objective is to minimize the network resources used for protecting each primary light-tree such that the blocking probability can be minimized. To verify the effectiveness of the SSNF algorithm, we conduct extensive simulation experiments. The simulation results demonstrate that the SSNF algorithm outperforms existing algorithms for the same problem.

© 2006 Optical Society of America

OCIS Codes
(060.4250) Fiber optics and optical communications : Networks
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
RESEARCH PAPERS

History
Original Manuscript: June 6, 2006
Revised Manuscript: September 28, 2006
Manuscript Accepted: October 2, 2006
Published: November 28, 2006

Citation
Hongbin Luo, Lemin Li, and Hongfang Yu, "Algorithm for protecting light-trees in survivable mesh wavelength-division-multiplexing networks," J. Opt. Netw. 5, 1071-1083 (2006)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jon-5-12-1071

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