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Proceedings Paper

Optical layer survivability: single service-class case
Author(s): Goekhan Sahin; Murat Azizoglu
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Paper Abstract

This paper considers capacity provisioning for service and restoration in a WDM optical network which provides lightpaths to higher layer networks. We develop a framework for jointly assigning wavelengths to service and restoration paths for all failures. For various types of path-based and link-based restoration methods, the problem is reduced to a vertex coloring problem in a single graph. Using this framework, we present routing and wavelength assignment algorithms for service and restoration with varying capacity/restoration time tradeoffs, and evaluate their performance through simulations. We also evaluate the difference in wavelength requirement under on-line incremental traffic and off-line traffic based on the properties of the conflict graph.

Paper Details

Date Published: 22 September 2000
PDF: 12 pages
Proc. SPIE 4233, OptiComm 2000: Optical Networking and Communications, (22 September 2000); doi: 10.1117/12.401826
Show Author Affiliations
Goekhan Sahin, Univ. of Washington (United States)
Murat Azizoglu, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 4233:
OptiComm 2000: Optical Networking and Communications
Imrich Chlamtac, Editor(s)

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