CAPEX savings of homing architectures considering OTN equipment

Alternative homing architectures can lead to significant cost reductions. These reductions are quantified using linear programming under a multi-layer consideration. In this paper we focus on the CAPEX savings achieved by transitioning to different homing architectures in an IP-over-OTN setting. The impact of traffic demand is examined for different reference networks. Additionally, it is shown that depending on the examined topology, the inclusion of regenerators in the cost optimization influences the break-even point between IP-over-WDM and IP-over-OTN network architecture considerations.