Abstract:
This thesis studies two significant problems of optical WDM networks on which multicast traffic is supported. Firstly, the multicast routing and wavelength assignment (MC-RWA) problem that refers to as the problem of routing multicast traffic and assigning wavelengths to it on WDM networks is analyzed. Secondly, the problem of multicast optical protection, which refers as the problem of provisioning protection systems to multicast traffic on WDM mesh networks, is investigated. In this thesis, three protection schemes are proposed: Minimal Cost approach (MC), One way Light Ring approach (OLR), and Two way Light Ring approach (TLR). To consider and compare those two problems, the key aspects include fiber requirement, fiber utilization, and complexity of network operation and management are investigated. Moreover, the influences of the maximal wavelengths multiplexed per fiber and wavelength conversion on fiber requirements are also shown in this thesis. Integer linear programming. ILP are served as the baseline for evaluating the problem and used as a solution technique to obtain the fiber requirement of each studied approach. The objective is to minimize the total of resources used, like the number of fiber requirement. Based on the numerical results, the MC is the most appropriate protection scheme that can accomplish the lowest total fiber requirement, Based on ring-based protection schemes, the total fiber requirement from TLR and OLR protection schemes depends on the characteristics of routing pattern at normal operation.