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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 3, Iss. 3 — Mar. 10, 2005
  • pp: 143–145

Dynamic protected lightpath provisioning in mesh WDM networks

Guolong Zhu, Qingji Zeng, Tian Xu, Tong Ye, and Junjie Yang  »View Author Affiliations

Chinese Optics Letters, Vol. 3, Issue 3, pp. 143-145 (2005)

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This paper investigates the problem of dynamic protected lightpath services provisioning in optical mesh networks employing wavelength division multiplexing (WDM). A variety of schemes for dynamic protected services provisioning have been proposed, supporting a range of tradeoffs among restoration speed, capacity efficiency, and scalability. In this paper, we propose a novel scheme, called p-cycles-based maximum protected working capacity envelope (PC-MPWCE), which can offer an attractive combination of features: ring-like speed, mesh-like capacity efficiency, and good scalability. To evaluate the performance of PC-MPWCE, we compare it via simulation with 1+1 automatic protection switching (APS) and two well-known shared backup path protection (SBPP) on NSFNET. Our simulation results show that PC-MPWCE can achieve much better blocking performance than 1+1 APS, and perform the similar blocking performance and capacity efficiency as SBPP.

© 2005 Chinese Optics Letters

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

Guolong Zhu, Qingji Zeng, Tian Xu, Tong Ye, and Junjie Yang, "Dynamic protected lightpath provisioning in mesh WDM networks," Chin. Opt. Lett. 3, 143-145 (2005)

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