Paper Info
Title
Path-protection routing and wavelength assignment (RWA) in WDM mesh networks under duct-layer constraints
Abstract
This study investigates the problem of fault management in a wavelength-division multiplexing (WDM)-based optical mesh network in which failures occur due to fiber cuts. In reality, bundles of fibers often get cut at the same time due to construction or destructive natural events, such as earthquakes. Fibers laid down in the same duct have a significant probability to fail at the same time. When path protection is employed, we require the primary path and the backup path to be duct-disjoint, so that the network is survivable under single-duct failures. Moreover, if two primary paths go through any common duct, their backup paths cannot share wavelengths on common links. This study addresses the routing and wavelength-assignment problem in a network with path protection under duct-layer constraints. Off-line algorithms for static traffic is developed to combat single-duct failures. The objective is to minimize total number of wavelengths used on all the links in the network. Both integer linear programs and a heuristic algorithm are presented and their performance is compared through numerical examples.
Year
DOI
Venue
2003
10.1109/TNET.2003.810313
IEEE/ACM Trans. Netw.
Keywords
Field
DocType
Wavelength routing,Wavelength assignment,Wavelength division multiplexing,WDM networks,Mesh networks,Optical fiber networks,Ducts,Protection,Earthquakes,Telecommunication traffic
Optical mesh network,Heuristic (computer science),Computer science,Computer network,Routing and wavelength assignment,Network topology,Fault management,Integer programming,Path protection,Backup,Distributed computing
Journal
Volume
Issue
ISSN
11
2
1063-6692
Citations 
PageRank 
References 
70
3.89
15
Authors
3
Name
Order
Citations
PageRank
Hui Zang1105277.25
Canhui Ou220414.03
Biswanath Mukherjee36034537.54