Search results for: Fragkiskos Sardis
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Journal of Network and Systems Management > 2019 > 27 > 4 > 972-997
In order to maintain seamless communication and quality of service (QoS) for mobile applications, a new and flexible mechanisms are needed. The first technique is the use of vertical handover to maintain QoS through multiple interfaces. Modern architectures use handover to move connections to a better network when required. The server localisation is the second facility that can be developed to move...
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5G is all about integrating new industries in the design of this whole new generation, where the mobile broadband connection is not the one and only use case on focus. Within the umbrella of 5G, other technologies are brought to the surface enabling new ways of communication with unprecedented effects on many sectors of society such as healthcare. This article focuses on a practical implementation...
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Capitalizing on the latest developments in 5G and ultra-low delay networking as well as Artificial Intelligence (AI) and robotics, we advocate here for the emergence of an entirely novel Internet which will enable the delivery of skills in digital form. We outline the technical challenges which need to be overcome to enable such a vision, i.e., on the development of a 5G Tactile Internet, standardized...
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State synchronisation in clustered Software Defined Networking controller deployments ensures that all instances of the controller have the same state information in order to provide redundancy. Current implementations of controllers use a strong consistency model, where configuration changes must be synchronised across a number of instances before they are applied on the network infrastructure. For...
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Network access control is an established security method that only grants access to authorised devices. The 802.1X standard defines the mechanisms for implementing network access control in legacy networks. However, its implementation requires hardware and software components that are not commonly found in small deployments and also adds to the complexity of the network and the deployment time. The...
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The Future Internet will provide seamless connectivity via heterogeneous networks. The Y-Comm Architecture is a reference model that has been developed to build future mobile systems for heterogeneous environments. However, the emergence of Software Defined Networking and Network Functional Virtualization will allow the implementation of advanced mobile architectures such as Y-Comm to be prototyped...
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Software-Defined Networking can be used to easily provision paths for business applications. However, such provisioning is static and is furthermore lost when application flows cross over to another operator domain. This paper proposes an online mechanism (SDNI) that considers application requirements and uses SDN to negotiate traffic policies between neighbouring operator domains. Hence, SDNI enables...
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Traffic localisation is an important aspect of traffic management on the Internet. The caching of content and its distribution from localised servers is one mechanism that enables traffic localisation and reduces transit costs for network providers while enhancing service performance. However, personalized, dynamic user content is often un-cacheable due to its nature. As we move towards a world of...
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In recent years, Cloud technology has revolutionized the way services are delivered to end-users. The advent of truly mobile computing in the form of smart phones and tablets has also driven the demand for Cloud resources in order to compensate for the inherent lack of local resources on these devices. Furthermore, modern mobile devices are equipped with multiple network interfaces and in combination...
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IEEE Transactions on Multimedia > 2013 > 15 > 4 > 769 - 777
Recent advances in mobile devices and network technologies have set new trends in the way we use computers and access networks. Cloud Computing, where processing and storage resources are residing on the network is one of these trends. The other is Mobile Computing, where mobile devices such as smartphones and tablets are believed to replace personal computers by combining network connectivity, mobility,...
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An increasingly wireless world will mean that devices with multiple network interfaces will soon become commonplace. Users will expect to be always connected from anywhere and at any time as connections will be switched to available networks using handover techniques. However, different networks have different Qualities-of-Service so a Quality-of-Service Framework is needed to help applications and...
