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Fault-management in survivable WDM optical networks using an adaptive hybrid algorithm

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3 Author(s)
Srikanth, P.C. ; Dept. of E&C, Malnad Coll. of Eng., Hassan ; Sathyanarayana, M.V. ; Srinivas, T.

Dynamic lightpath protection in survivable WDM networks requires finding a pair of diverse routes (i.e., a primary route and a backup route that are link-disjoint) that form a cycle upon the arrival of a new connection request. This paper presents a hybrid adaptive survivability algorithm that combine the positive effects of restoration and protection.. The overall goal of the proposed approach is to improve the restoration efficiency by providing a tradeoff between proactive protection and dynamic restoration. Experimental results based on the ns-2 network simulator show that under high loads, the proposed algorithm achieves significantly lower blocking probability than the conventional survivable techniques.

Published in:

Computing, Communication and Networking, 2008. ICCCn 2008. International Conference on

Date of Conference:

18-20 Dec. 2008