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We analyze Defragmentation-as-a-Service (DaaS) in elastic optical networks and show that the positive effect of defragmentation depends on the rate at which it is performed, load (or, call arrival rates) and the available resources.
Reconfiguration of connections along frequency axis, - similar to frequency hopping in wireless systems, has been shown to improving security in elastic optical networks (EONs). However, the effect of spectrum reallocation on the connections' blocking and the associated connections' security is still under-explored. In this paper, we examine the effect of… (More)
Network Function Virtualization (NFV) is enabling the softwarization of traditional network services, commonly deployed in dedicated hardware, into generic hardware in form of Virtual Network Functions (VNFs), which can be located flexibly in the network. However, network load balancing can be critical for an ordered sequence of VNFs, also known as Service… (More)