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The efficacy of an optical network is determined by the network's ability to hold out and pull through from failures and disruptions. Achieving the desired impact of survivability is a key imperative for optical network industries. Several practitioners and researchers are working towards realizing the target of maximum survivability of optical network systems. In this league, our research initiative intends to evaluate the impact of survivability of multi-fiber wavelength-division multiplexing networks. To evaluate the impact of survivability factor in optical network through the most accurate means, we used the hybrid multi criteria decision making methodology, the Fuzzy Analytical Hierarchy Process (FAHP) and Fuzzy Technique for Order of Preference by Similarity to Ideal Solution (FTOPSIS). For estimating the impact of survivability in the present endeavour, the authors have taken two layers (two factors at level 1, and 10 factors at level 2) of the survivability factors for calculating the weights and five alternatives for evaluating the survivability impact. The hybrid technique of FAHP and FTOPSIS was developed for our analysis. FAHP evaluated the weights of the factors with respect to their alternatives, whereas the FTOPSIS was employed to calculate the overall impact of survivability. According to the numerical analysis of the selected factors affecting the parameters of the survivability in Wavelength Division Multiplexing (WDM), restoration technique was the most prioritized alternative, and hence needs more focus while engineering the WDM network.

Estimating the Survivability Impact of Multi-Fiber Wavelength-Division Multiplexing Networks