Availability aware cost modeling of mesh architectures for long-haul networks

Carriers determined to stay competitive in the market have learned that simply going for the cheapest networking solution in terms of CAPEX is not enough, as the total cost includes OPEX as well. Availability of the network, which is too important to ignore in terms of providing meaningful service to customers, also relates to OPEX cost through maintenance and repair efforts. This study introduces a modeling methodology that incorporates availability awareness in to the cost modeling in order to propose a mesh architecture for a given core network with an acceptable trade-off between cost-efficiency and availability.