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Tremendous volumes generated by big data applications are starting to overwhelm data centers and networks. Traditional research efforts have determined how to process these vast volumes of data inside datacenters. Nevertheless, slight attention has addressed the increase in power consumption resulting from transferring these gigantic volumes of data from the source to destination (datacenters). An...
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...
Several critical benefits are encompassed by the concept of NFV when this concept is brought under the roof of 5G such as scalability, high level of flexibility, efficient utilisation of network resources, cost and power reduction, and on demand allocation of network resources. NFV could reduce the cost for installing and maintaining network equipment through consolidating the hardware resources....
Modern IP/Optical transport networks are seldom jointly operated and optimized, and do not cater to the usually implicit requirements of applications, which ultimately drive network traffic. In this concept paper we propose a Software Defined Networking (SDN) based Network Orchestrator to manage multi-layer transport networks while taking explicit application requirements into account. We discuss...
This paper introduces cross-stratum orchestration architecture that is aimed to support an end-to-end orchestration of application services. This paper then expands the concept of CSO as a viable architecture and discusses issues and requirements for two challenging use cases: game server dynamic VM mobility and 5G Transport (5GT).
5G is currently being investigated and defined while Time-Wavelength Division Multiplexed Passive Optical Networks (TWDM-PONs) and Digital Broadcasting Systems (DBS) are respectively standardised and deployed. Software Defined Networking (SDN) can provide reconfigurability, the stringent latency requirements, adaptive network functionality, and the Quality of Experience (QoE) that a heterogeneous...
Elastic optical networks in conjunction with the Software Defined Networking (SDN) paradigm promise to serve the increasing networking requirements of current and future applications and services, providing on demand and scheduled capacity. We present an emulation environment for SDN-enabled, multi-layer and flexible IP/Optical networks, named Julius, based on Mininet, for the SDN network emulation...
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