Energy-efficient transport for the future internet

Abstract

The emergence of new interactive and peer-to-peer 2.0. This is a continuous process and new trends like the Internet of Things, Ambient Assisted Living, and Smart Senior are already emerging on the coming Web 3.0 horizon.As a consequence, all parts of the transport network (access, metro, backbone) have to support these applications, implying that much more bandwidth and new control schemes will be needed.The typical access bandwidth today is in the range of 384 kb/s to 2 Mb/s [10], which will need to be increased to 50 to 100 Mb/s to support broadband applications like

An in-operation IP-over-optical network planning method that supports unpredictable IP traffic transitions

“…Figure 2 overviews the planning procedure. It is based on the composition method of static network planning 5,6 , and the main difference from it is that IP connections (e.g. Label Switched Paths, LSPs) are added based on the previous phase's optimal planning result, and that IP connection composition order is determined by the difference between current and previous traffic matrices.…”

“…Therefore optical network planning under the condition of unpredictable non-uniform IP traffic transitions including traffic decreases are not considered. Moreover, the traditional static multi-layer planning scheme that generates the (near-) optimal network state from just a snapshot of traffic condition 5,6 does not necessarily support the assumed dynamic traffic condition.…”

Communication network-centric smart grid services

“…Further optimization can be achieved if IP router transit traffic is dynamically handled at the more energy efficient optical domain ("IP offloading" [7] [8]). Again, this requires a certain degree of switching flexibility in the OTN layer.…”

Content, connectivity, and cloud: ingredients for the network of the future

“…The ability of using direct lightpaths and optical technologies for traffic off-loading the Internet core, and reducing (electrical) processing in intermediate hops, will have a beneficial impact on the energy budget of the global Internet overall, a problem being recognised only in recent years in the context of so-called "green ICT" [12]. However, this requires a new modified addressing and routing architecture, if a packet should be processed in less electronic steps, and then put into an optical path that ends up near the destination, in order not to run into routing table explosion and scaling problems caused by the extensive use of multilayer techniques across multiple domains [13].…”