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Optical Engineering

Effective survivable routing algorithm with sharing of spare resources and fast failure recovery in wavelength division multiplexing mesh networks
Author(s): Lei Guo; Lemin Li
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Paper Abstract

This paper investigates the dynamic survivable routing problem and proposes an effective path-based protection algorithm, called the dynamic joint routing approach (DJRA), to completely protect against double-link failures in meshed wavelength division multiplexing optical networks. In DJRA, each connection is assigned a primary path and two link-disjoint backup paths to tolerate the simultaneous failures of two arbitrary fiber links. In order to improve the algorithm performance, we consider three key issues: (1) sharing spare backup resources, (2) failure recovery time, and (3) trap-path avoidance. Therefore, compared to previous algorithms, DJRA obtains better performance and is also able to yield flexible trade-off solutions.

Paper Details

Date Published: 1 January 2007
PDF: 7 pages
Opt. Eng. 46(1) 015002 doi: 10.1117/1.2424916
Published in: Optical Engineering Volume 46, Issue 1
Show Author Affiliations
Lei Guo, Northeastern Univ. (China)
Lemin Li, Univ. of Electronic Science and Technology of China (China)


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