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The powerpoint presentation discussed the issue of backup lightpath capacity sharing in optical WDM networks with limited wavelength conversion capability, the problem of the introduced a posteriori backup path sharing approach, the ILP model and the efficient heuristic algorithm, and the advantage of CPLEX modeling over FSR-SP-LWC algorithm that would achieved up to 50% values of recovery time compared...
In this paper we propose the class-based protection algorithm providing fast service recovery in optical networks using the new concept of fast protection cycles (f-cycles). We focus on service restoration time values and we show, that it is possible to decrease them, by reducing the size of active path protected area. We prove that it is also possible to reduce the ratio of link capacity utilization...
In this paper, a novel algorithm optimizing the utilization of backup path resources for survivable WDM mesh grooming networks, based on graph vertex-coloring approach, is proposed. This is the first optimization technique, dedicated to protection-at-connection level (PAC) in WDM grooming networks, such that does not increase the backup path length and thus provides fast service recovery. The concept...
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