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HUSTIR > College of Engineering > Department of Information Networking Technology > Journal > Item 310993100/307

Please use this identifier to cite or link to this item: http://ir.hust.edu.tw/dspace/handle/310993100/307

Title:	Link Failure Protection in Wavelength-routed Survivable WDM Networks
Authors:	Wang-Hsai Yang Wen-Ching Chen
Contributors:	Department of Information and Networking Technology
Keywords:	survivable bifurcate WDM
Date:	2006-09
Issue Date:	2008-08-25T02:23:57Z
Abstract:	PWCE concept provides a new paradigm for fast and simple dynamic lightpath provisioning with survivable capability. Based on PWCE concept, we propose an efficient approach, called Primal Adjust Heuristics (PAH), aim to protecting single link failure in survivable WDM networks. We employ the concept of bifurcation to protect a single link failure. This strategy simultaneously addresses the problems of routing working traffic and determining multi-backup paths for each single link failure. Numerical results demonstrate that PAH outperforms shortest path heuristic by assigning unit cost weight for each link in blocking probability for networks with uniform and non-uniform demand distribution.
Relation:	修平學報 13, 21-32
Appears in Collections:	[Department of Information Networking Technology] Journal

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