Analytical Model based on Green Criteria for Optical Backbone Network Interconnection

Key terms such as Global warming, Green House Gas emissions, or Energy efficiency are currently on the scope of scientific
research. Regarding telecommunications networks, wireless applications, routing protocols, etc. are being designed following this
new “Green” trend. This work contributes to the evaluation of the environmental impact of networks from physical interconnection
point of view. Networks deployment, usage, and disposal are analyzed as contributing elements to ICT’s (Information and
Communications Technology) CO2 emissions. This paper presents an analytical model for evaluating and quantifying the CO2
emissions of optical backbone networks during their lifetime. The main goal of this work is to present the model and illustrate
how to evaluate the physical interconnection of backbones from an environmental perspective. This model can be applied as a new
type of decision support criteria for backbone’s interconnection, since minimization of CO2 emissions is becoming an important
factor. In addition, two case studies are presented to illustrate the use and application of this model, and the need for de facto and
international standards to reduce CO2 emissions through good network planning.