Chapter 8
The Impact of Renewable
Energy Sources in the CO
2
Emissions of Converged
Optical Network and
Cloud Infrastructures
∗
Markos P. Anastasopoulos,
∗
Anna Tzanakaki and
+
Dimitra Simeonidou
∗
Athens Information Technology Center, {mark,atza}@ait.gr
+
University of Essex, dsimeo@essex.ac.uk
8.1 Introduction .................................................... 212
8.2 Energy Consumption Models for the Physical Infrastructure . 215
8.2.1 Optical Network Elements ............................. 215
8.2.2 Energy Consumption Models for Computing
Resources ............................................... 217
8.3 Energy Aware VI Planning .................................... 219
8.3.1 VI Problem Formulation ............................... 220
8.4 Numerical Results ................... ...