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Most of previous research on survivable networks has been related to unicast communications. In this paper we propose a new approach to network survivability of anycast communications. To the best of our knowledge, anycast defined as one-to-one-of-many technique has not received much attention recently. To provide network survivability, we use the single backup path approach, i.e. each demand has...
In this paper we propose a class-based protection algorithm providing fast service recovery in WDM networks in case of a simultaneous failure of two network elements. We focus on providing various levels of service survivability in order to correspond to differentiated requirements of end-users. We show that assuring the service survivability in case of a double failure requires up to 40% more total...
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...
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