The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Community networks leverage networking resources from the community itself to offer telecommunication networks for the same community. Software-Defined Networking (SDN) offers a global view of the elements composing the network. Due to its scalability, SDN paradigm has been extended for many other networks including social networks and community networks, in addition to its initial focus, traditional...
The development of Unmanned Aerial Vehicles (UAV) and wireless sensor network (WSN) applications depends on the availability of resources in UAVs and sensor nodes. In traditional applications, UAVs obtain the required data from specific sensors. However, this tightly coupled architecture restricts the usage of the infrastructure for specific applications. This paper proposes a softwarization architecture...
The flexibility and dynamicty of the Cloud and SDN-based network infrastructures raise strong issues for sensitive data which can easily be transferred between different locations and then violate some constraints such as country-based regulations. This paper tackles the critical issue related to the path followed by sensitive data transferred in such virtualized environments and which have specific...
Cloud Computing has been one of the most fascinating and influential technologies in recent years and has literally revolutionised the way we access computing resources by providing a virtually unlimited amount of resources instantaneously. Despite this seemingly amazing breakthrough, there are still some clouds on the horizon, preventing the paradigm from an even greater impact: While most technological...
The Cloud computing paradigm enables innovative and disruptive services by allowing enterprises to lease computing, storage and network resources from physical infrastructure owners, to offer a persistently available service. This shift in infrastructure management responsibility has brought new revenue models and new challenges to Cloud providers. One of those challenges is to efficiently migrate...
High availability is a critical requirement for cloud deployed services. Cloud providers offer different availability zones with geo-redundancy to protect their infrastructure and consequently their tenants against failures and natural disasters. Nevertheless, different zones may have different reliability levels depending on the hardware equipment, the geo-location, the energy source powering the...
Mobile Edge Computing (MEC) promises a paradigm shift in enabling efficient Mobile Cloud Computing (MCC) services by providing storage and processing capacity within the access range of the mobile devices. In MEC, Mobile Edge (ME) servers are placed at the edge of the mobile networks eliminating the need to offload compute-/storage-intensive tasks of the mobile devices to the core of the network (the...
Given the omnipresent role of information technology in today's society, interdisciplinary approaches to system design become increasingly indispensable. Unilateral assessments coming from one discipline are creating the risk that important issues are overlooked. Current cloud security is hard to assess, because virtualization technology also implies losing control and transparency over data and processes...
The adoption of cloud computing is increasing and its use is becoming widespread in many sectors. As the proportion of services provided using cloud computing increases, legal and regulatory issues are becoming more significant. In this paper we explore how an Information Flow Audit (IFA) mechanism, that provides key data regarding provenance, can be used to verify compliance with regulatory and contractual...
Due to a lack of transparency in cloud based services well-defined security levels cannot be assured within current cloud infrastructures. Hence sectors with stringent security requirements hesitate to migrate their services to the cloud. This applies especially when considering services where high security requirements are combined with legal constraints. To tackle this challenge this paper presents...
Today's public cloud services suffer from fundamental privacy issues, e.g., as demonstrated by the global surveillance disclosures. The lack of privacy in cloud computing stems from its inherent centrality. State-of-the-art approaches that increase privacy for cloud services either operate cloud-like services on user's devices or encrypt data prior to upload to the cloud. However, these techniques...
Cloud Computing Techno-economic Engineering (CCTE) Workshop aimed to serve as a melting pot for researchers and practitioners both in the areas of cloud computing and business management, in order to discuss and combine best practices in these fields into novel ideas and frameworks to accommodate new business models to harvest the potential of cloud computing taking into account both technological...
In most of the current commercial Clouds, resources are billed based on a time interval equal to one hour, as is the case of virtual machine (VM) instances on Amazon EC2. Such time interval is usually long, and yet the user has to pay for the whole last hour, even if he/she has only used a fraction of it, contradicting the pay-as-you-go model of Clouds. In this paper, we analyse the advantages of...
The cloud service model is spreading into the telecommunications industry, forcing the telecommunications providers to adjust their production models. The network service provider cloud platform, also called as Telco Cloud, utilizing a cloud based production model, is a solution to respond to the changing market forces. The cloud based production model is a new concept in the context of telecommunication...
This paper presents results of the ongoing development of the CYCLONE as a platform for scientific applications in heterogeneous multi-cloud/multi-provider environment. The paper explains the general use case that provides a general motivation for the CYCLONE architecture and provides detailed analysis of the bioinformatics use cases that define specific requirements to the CYCLONE infrastructure...
We present a design for a general federation agent based on the OpenStack Keystone v3 service. We examine and choose an initial approach based on peer-to-peer methods that support the use of arbitrary application-level services in Virtual Organizations. We review general federation management requirements, deployment models, and current work, including those using Keystone. We then extend our work...
Due to its rapid growth, short history and lack of regulation, eliciting the requirements for an information system broker in an IaaS Cloud Computing context can be a challenging task. Reference models such as the NIST Cloud Computing Reference Architecture and The Open Group Cloud Ecosystem Reference Model stand as recognized models in this domain. Additionally, Use Case models allow representing...
This paper proposes a formal predicate logic-based method for the specification of intercloud information systems comprising combinations of cloud services. The proposed framework utilizes predicates with variables in universally quantified atoms to provide general descriptive capability for a wide variety of cloud services and their various properties. We define the proposed Predicate Logic-defined...
Academics and industry experts are now advocating for going from large-centralized Cloud Computing (CC) infrastructures to smaller ones massively distributed at the edge of the network. Referred to as "fog/edge/local computing", such a dawning paradigm is attracting growing interest as it improves the whole services agility in addition to bringing computing resources closer to end-users...
This paper presents results of the ongoing development of the Cloud Services Delivery Infrastructure (CSDI) that provides a basis for infrastructure centric cloud services provisioning, operation and management in multi-cloud multi-provider environment defined as a Zero Touch Provisioning, Operation and Management (ZTP/ZTPOM) model. The presented work refers to use cases from data intensive research...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.