Modeling energy costs and emissions for anycast RWA in optical data center networks

摘要

Energy consumption of network and data-center operators causes economic and environmental concerns. Geographical distribution of resources implies agreements with multiple utility companies; these are increasingly offering pricing and update the fuel diversity real-timely, in addition to standard flat-rate prices. We propose two algorithms to reduce operational expenditures and pollutions by choosing the route with the least cost and emissions for the consumed energy. Today data replicas are typically accessible from several optical data centers. Replicas lead to more flexible network routing. We propose an analytical modeling to calculate the electricity cost and emissions in the network with the number of replicas. The greatest benefit of our approach is that the network can dynamically adapt to renewable resources generation sudden rises or drops; high emissions are avoided1.