A New Strategy for Energy Saving in Spectrum-Sliced Elastic Optical Networks †

Abstract

In this paper, we propose a new approach for energy saving in Elastic Optical Networks (EONs) under physical impairments based on MILP solving instances. First, we seek to maximize the attended traffic on the network whereas the blocking probability is maintained below a defined limit. Hence, the next step is to minimize the power consumption on the network. The proposed MILP-based algorithm models the RMLSA problem and considers transponders, optical cross-connects (OXCs), and optical amplifiers as the physical components with influence on network optimization. The results show that our approach offers, on average, a reduction of up to 7.7% of the power consumed on the four moderate networks analyzed.

Keywords

• elastic optical networks
• energy saving
• green optical networks
• routing modulation and spectral assignment
• MILP formulation
• optimization