Resource Optimization in Fully Flexible Optical Node Architectures

In the paper we present NG_ROADM Optical Node Architecture and particularly concentrate on optimization of optical node resources (i.e., various types of transponders). The main objective is to minimize capex and opex in real telco service providers optical networks. We formulate the problem as mixed integer linear programming. The results of numerical experiments run on network topologies of different dimensions and with large demand set. For this purpose we develop specifically tailored optimization algorithm based on mixed integer linear programming.