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Software-Defined Networking (SDN) is an innovative approach to provisioning and delivering QoS (Quality of Service) services, yet it is still devoid of context-differentiating services. In this paper we propose a network application (Autonomic QoS Broker) and a controller module that implements the OpenVSwitch Database Management Protocol (OVSDB). These two components were implemented and validated...
We are currently witnessing an evolution towards network virtualization and Software Defined Networking (SDN) paradigm. SDN permits the decoupling of the control and data planes of traditional networks, and offers flexible and programmable networks. Besides, the need for dynamic provisioning and composition of networking services leads to the deployment of software components on virtualized network...
Ensuring proper operation of networks based on the Software-Defined Networking (SDN) is essential. Many proposals exist for managing SDN. However, they present low automation, long-time for Administrators to manage situations, and lack of flexibility and workability. In this paper, we introduce an architecture based on the Hierarchical Task Network (HTN) planning technique and the Network Functions...
We describe a cloud-based architecture for monitoring large numbers of industrial automation devices. We are interested in massive parallel monitoring of software components controlling critical automation facilities such as factories, mines or oil rigs. Monitoring focuses on post-deployment verification, aiming at discovering specification violations indicating for example bugs or incompatibilities...
Public cultural sharing service plays an important role in the public cultural platform. The recommender systems can bring users useful cultural resources and information. For safety and security reasons of the cultural resources, the external applications are not allowed to directly access the original resource data stored in the cultural databases by sending recommendation requests. The cultural...
This paper defined a unified architecture of IoT system, on which IoT node model, virtual things, the basic service of things and overall hierarchical model of services had been described. IoT nodes must be connected directly to Internet and provide basic services of things in this architecture, and started from the base services which were compatible with Internet applications system of SOA, built...
Service Function Chaining (SFC) serves the traffic of a specific service along an ordered set of Service Functions (SFs). SFC uses Software Defined Networking (SDN) and Network Function Virtualization (NFV) technologies to reach the deployment and removal of SFC in an appropriate time with minimal costs. However, during the life time of deployed SFCs, the SFs are exposed to the risk of overloading,...
Programmable Logic Controllers (PLCs) are specialized computing systems for the control and monitoring of distributed industrial devices. Aiming for a highly connected industrial Internet-of-Things (IoT) ecosystem, PLCopen OPC Unified Architecture (UA) specification has been released. This paper presents the implementation and evaluation of a PLCopen OPC-UA software component for industrial control...
This paper describes the software architecture and the implementation of a fully operational testbed that demonstrates the benefits of flexible, dynamic resource allocation with virtualized LTE-A nodes. The testbed embodies and specializes the general software architecture devised within the Flex5Gware EU project, and focuses on two intelligent programs: the first one is a Global Scheduler, that coordinates...
A service-oriented architecture (SOA)-based application is composed of a number of distributed and loosely-coupled services which are interconnected to accomplish a more complex functionality. The main security challenge in SOA is that we cannot trust the participating services in a service composition to behave as expected all the time. Moreover, the chain of all services involved in an end-to-end...
Network softwarization - through the adoption of Software Defined Networking (SDN), Network Functions Virtualization (NFV) and Cloud-Fog computing technologies - is deeply impacting telecom and ICT industries. This transformation, along with numerous advantages, brings also considerable challenges. In this paper, we discuss the main features of monitoring in the afore-mentioned landscape as well as...
In the era of Internet of Things and dynamically interconnected systems, real time data becomes a new industrial asset, used to create new opportunities for operations improvement and to increase industrial value through the capitalisation of immaterial assets. In the smart factory, big data acquisition, analysis and visualisation pave the way to the manufacturing servitization, defined as the strategic...
Current networking integrates common "Things" to the Web, creating the Internet of Things (IoT). The considerable number of heterogeneous Things that can be part of an IoT network demands an efficient management of resources. With the advent of Fog computing, some IoT management tasks can be distributed toward the edge of the constrained networks, closer to physical devices. Blockchain protocols...
Monitoring is a common requirement in everyday modern life, from anti-virus scanners on personal computers to securing large multinational systems' health and status. Such monitoring is a fundamental process which must be undertaken where resources are offered as a service as in the cloud, to make sure that the service has been delivered to meet all contractual obligations. However, with a dynamic...
A System-of-Systems (SoS) is evolutionary developed from independent systems to achieve missions not possible to be accomplished by a single system alone. They are architecturally designed to exhibit emergent behavior, i.e. a new behavior that stem from the interactions among constituent systems, but cannot be deduced from the behaviors of the constituent systems themselves. This paper presents the...
This paper presents the design of the CASPER1 middleware architecture that enables the implementation of real-time QoE-driven service management. More in detail, we thoroughly describe the new modules, methods and functionalities that need to be integrated into the network providers' infrastructure, according to CASPER. Based on this architecture, future virtualized networks can provide a closed-loop...
As Cloud-deployed applications became more and more mainstream, continuously more complex services started to be deployed. The deployment involves multiple-layered systems and application itself. Where, failure of any point will disrupt the whole availability and auto-healing is one of the most indispensable features of the Cloud management. The micro-service model and Cloud management platform decouples...
Digital documents are likely to have problems associated with the persistence of links, especially when dealing with references to external resources. People keep track of various webpages of their interest using distributed digital collections and without possession of these documents; the curator cannot control how they change. In the current context, managing these distributed digital collections...
The aging population is putting increasing pressure on health care systems in many developed countries, and maintaining quality of care while controlling costs becomes a major issue that needs to be addressed. With platforms now available at 2,000 $US, telepresence robots are one potential solution to provide remote care services to elders living in their homes. However, they need improved capabilities...
Organizations increasingly utilize cloud services such as Infrastructure as a Service (IaaS) where virtualized IT infrastructure are offered on demand by cloud providers. A major challenge for cloud providers is the security of virtual resources provided to its customers. In particular, a key concern is whether, for example, virtual machines (VMs) in the datacenter are performing tasks that are not...
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