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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 2, Iss. 7 — Jul. 10, 2004
  • pp: 379–382

Double-link failure protection algorithm for shared sub-path in survivable WDM mesh networks

Lei Guo, Hongfang Yu, and Lemin Li  »View Author Affiliations

Chinese Optics Letters, Vol. 2, Issue 7, pp. 379-382 (2004)

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We propose a novel shared sub-path protection (SSPP) algorithm to protect the double-link failures in wavelength division multiplexing (WDM) mesh networks. SSPP segments the primary path into several equal-length sub-paths and searches two link-disjoint backup paths for each sub-path. When computing the paths, SSPP considers the load balance and the resource sharing degree, so that the blocking ratio can be effectively reduced. The simulation results show that SSPP not only can completely protect the double-link failures but also can make the tradeoffs between the resource utilization ratio (or blocking ratio) and the protection-switching time.

© 2005 Chinese Optics Letters

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

Lei Guo, Hongfang Yu, and Lemin Li, "Double-link failure protection algorithm for shared sub-path in survivable WDM mesh networks," Chin. Opt. Lett. 2, 379-382 (2004)

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  1. H. B. Wen, L. M. Li, R. X. He, H. F. Yu, S. Wang, and N. Song, Photon. Network. Commun. 6, 253 (2003).
  2. F. Q. Liu, Q. J. Zeng, X. Zhu, and S. L. Xiao, Chin. Opt. Lett. 1, 259 (2003).
  3. S. Ramamurthy, L. Sahasrabuddhe, and B. Mukherjee, J. Lightwave Technol. 21, 870 (2003).
  4. B. G. Jozsa, D. Orincsay, and A. Kern, in Proceedings of IEEE ISCC'2003 1333 (2003).
  5. Y. Wang, L. M. Li, and S. Wang, Acta Electron. Sin. 29, 1319 (2001).
  6. L. Guo, H. F. Yu, and L. M. Li, Opt. Express 12, 2327 (2004).

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