Today’s Internet content providers primarily use Content Delivery Networks (CDNs) to deliver content to end-users with the aim to enhance their Web access experience. Yet the prevalent commercial CDNs, operating in isolation, often face resource over-provisioning, degraded performance, and Service Level Agreement (SLA) violations, thus incurring high operational costs and limiting the scope and...

There is now a huge variety of multimedia applications, network technologies and end-system architectures. Within this new and challenging environment, the importance of Quality of Service (QoS) mechanisms to allocate and monitor system resources has been recognised. A key goal of our research is how to manage the QoS requirements of heteregeneous receivers in applications that depend on multip...

The rapid development of the number and the size of Online Social Network (OSNs) makes the analysis of Social Internetworking Scenarios (SIS’s) extremely challenging. In a SIS, a user can join multiple OSNs and two users can interact with each other even though they joined different OSNs and did not know each other. While OSNs have been extensively studied in the last years, the most peculiar a...

This paper considers the problem of providing transparent support for very large numbers of mobile hosts within a large internetwork such as the Internet. The availability of powerful mobile computing devices and wireless networking products and services is increasing dramatically, but internetworking protocols such as IP used in the Internet cannot currently support host movement. To address t...

As wireless ad hoc networks become more deployed, there is a growing interest for compound internetworks, that is, internetworks that contain both fixed and ad hoc networks. Routing is one of the main challenges that arise in such compound internetworks. Although specialized routing protocols exist for wired and for ad-hoc networks, and several such specialized protocols could be used together ...

A base B of a space X is called an OIF base when every element of B is a subset of only a finite number of other elements of B. We will explore the fundamental properties of spaces having such bases. In particular, we will show that in T2 spaces, strong OIF bases are the same as uniform bases, and that in T3 spaces where all subspaces have OIF bases, compactness, countable compactness, or local...

Multicast networking support is becoming an increasingly important future technology area for both commercial and military distributed and group-based applications. Integrating a multicast security solution involves numerous engineering tradeoffs. The end goal of effective operational performance and scalability over a heterogeneous internetwork is of primary interest for widescale adoption and...

Neighbor greeting involves a process used by network nodes to achieve reachability and discovery. The Address Resolution Protocol (ARP) and End-System to Intermediate-System Routing Exchange Protocol (ES-IS) are competing approaches to the neighbor greeting problem. This paper provides a detailed analysis of the performance of these protocols, and a better understanding of the performance trade...

This document defines a framework for specifying services provided by network elements, and available to applications, in an internetwork which offers multiple qualities of service. The document first provides some necessary context -including relevant definitions and suggested data formats -and then specifies a "template" which service specification documents should follow. The specification t...

The Internet of Things (IoT) is about inter-networking real word objects in order to foster data exchange and communication among things. In this work we present the IoT Application Profile (IoT-AP) ontology with a particular focus on the pattern-based design methodology used for modelling the ontology.