Development Of An Improved Adaptive Energy Saving Scheme For Green Optical Networking


A. Kathiravan
N. K Sakthivel
S. Subasree


Global IP traffic is predicted to reach 63.9 exabytes per month in 2014. This growth rate has not only driven up demand for bandwidth from the Internet backbone infrastructure but has also presented providers with new challenges such as Enormous Energy Consumption, which causes Global Warming. To address these issues, Load adaptive energy saving schemes were proposed which is for backbone IP networks use dynamic transport circuit services to adapt the active network resources to the current traffic demand in order to reduce the network's energy consumption. Recently, several approaches, categorized as Switch-Off schemes, have been proposed which attempt to reduce the energy consumption of already existing networks by switching-off IP ports and links during periods of low traffic. Although it has been shown that these schemes can notably decrease the network's energy consumption, they are prone to instabilities in the IP routing service and decreased resilience due to reduced connectivity.  To address these challenges, Switch-On scheme in an IP-over-WDM network was proposed, where the network is designed so that the essential IP connectivity is maintained during low traffic periods while dynamic circuits are switched on in the optical layer to boost network capacity during periods of high traffic demand. 

This Project Work has implemented the Switch-On Scheme and from our experimental results, it is observed that the Switch-On approach in IP-over-WDM networks carry significant potential for improvement in energy efficiency. However, it is realized that this scheme consumes energy inefficiently due to poor energy-load proportionality of network equipment which causes a vast amount of energy consumption even in an idle state.  To address this issue, this Project Work is proposed an efficient Traffic Grooming Framework for Switch-On approach. From our experimental results, it is revealed that the proposed work outperforms the existing Switch-On Model interms of Power Consumption, Throughput, Router Utilization.