Network coding for energy efficiency in bypass IP/WDM networks
Mohamed O. I. Musa, Taisir E. H. El-Gorashi, Jaafar M. H. Elmirghani · 2016
Network coding has been proven to be an effective approach towards achieving the network capacity and resources efficiency. However, most of the work achieved has been under the umbrella of wireless networks. In this paper we investigate the use of network coding to improve energy efficiency of the IP/WDM optical core considering unicast traffic flows by implementing coding at the optical layer of intermediate nodes. The mixed integer linear programming results show that network coding can improve the energy efficiency by up to 28% on the NSFNET compared to conventional non-bypass approach. The results show that the network coded bypass approach also outperforms the conventional bypass approach.