Fast service recovery under shared protection in survivable wdm networks with limited wavelength conversion capability

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 to commonly used approach, reducing the total link capacity utilization up to 39%, compared with the " no backup path sharing" case.