Collaboration

Low Carbon Emission IP Over WDM Network

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Executive Summary

In this paper, the authors propose a low carbon emission IP over WDM network where renewable energy is used to reduce the CO2 emissions at a given energy consumption level. They develop a Linear Programming (LP) model to minimize the non-renewable energy consumption of the network and propose a novel heuristic for improving renewable energy utilization. Compared with routing in the electronic layer, the results show that routing in the optical layer coupled with renewable energy nodes significantly reduces the CO2 emission of the IP over WDM network by up to 94%, and the new heuristic introduced has little impact on the QoS.

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