Marios Logothetis

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We consider a single-link loss system with fixed bandwidth capacity accommodating K service-classes of Poisson traffic with different bandwidth-per-call requirements. Calls of all service-classes compete for the available link bandwidth, under two different policies: a) the complete sharing (CS) policy and b) the bandwidth/trunk reservation (BR) policy. In(More)
We consider the fair bandwidth allocation problem of ABR calls by a Connection Admission Controller (CAC) at call setup. Its general solution is given by applying the " max-min fairness allocation policy ". Extensions of this policy take into account the Minimum Cell Rate (MCR) and the Peak Cell Rate (PCR) traffic description parameters, which are essential(More)
Most of elastic traffic calls require a rate between certain limits, while it is essential for a bandwidth allocation mechanism to allocate the available bandwidth in a fair manner among the elastic calls. Therefore, the min and max bandwidth requirements of calls have to be taken into account in the bandwidth allocation process. Such a process is the(More)
—Future networks require the use of sophisticated tools that will simplify the management and control of complex infrastructures and services by minimizing the burden of human presence and manual operation. Autonomic Network Management (ANM) on the one hand and Software Defined Networking (SDN) on the other hand, have appeared with the promise to meet these(More)
The current circumstances on a worldwide level urgently impose to exploit technology in order to reduce environmental pollution, CO 2. emissions and waste. The current technologies and the provisioned evolution steps take into consideration these facts and contribute to achieve greener footprint. This paper describes technologies as important elements in(More)