Planning and dimensioning of multilayer optical transport networks

The network planning tool is important for both systems vendors and network operators as it is used in the various stages of the telecommunications business. In the budgeting and implementation stages, a planning tool offering a cost-efficient solution to the network operator can be decisive to the system vendor. After, in the operation stage, the planning tool can be used to re-optimize the available resources, bringing additional cost savings to network operators. In this context, we present an overview of our previous work on the development of tools for the planning of multilayer optical transport networks. Optimization methods for the various stages of the network planning were proposed, namely physical topologies design, and greenfield and multi-period nodes dimensioning.