Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"Virtual networks"”.
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Virtual networks--implementation and analysis
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Evaluation study of virtual network embedding for short-lived virtual networks
… data storage, scientific and research purposes. Virtualization technology is an essential element for these services. Virtualization enables the creation of multiple virtual instances on physical or hardware infrastructure. Network virtualization is a recent advancement in this field through …
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A Novel Placement Algorithm for the Controllers Of the Virtual Networks (COVN) in SD-WAN with Multiple VNs
… a new placement algorithm for the Controller of Virtual Network (COVN). This is because SDN and network virtualisation techniques (NFV and NV), are integrated to produce multiple virtual networks running on a single SD-WAN infrastructure, which serves the new backbone.<br/><br/>One of the …
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On Enabling Virtualization and Millimeter Wave Technologies in Cellular Networks
Wireless network virtualization (WNV) and millimeter wave (mmW) communications are emerging as two key technologies for cellular networks. Virtualization in cellular networks enables wireless services to be decoupled from network resources (e.g., infrastructure and spectrum) so that multiple …
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An Evaluation Methodology for Virtual Network Embedding
The increasing scale and complexity of computer networks imposes a need for highly flexible management mechanisms. The concept of network virtualization promises to provide this flexibility. Multiple arbitrary virtual networks can be constructed on top of a single substrate network. This allows …
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Virtualization of multicast services in WiMAX networks
… content. To improve bandwidth utilisation, virtualization is often invoked because of its additional features such as bandwidth sharing and support of services that require high volumes of transactional data. Currently, network providers are concerned with the bandwidth amount for efficient …
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Energy Optimization for Virtualized Network Environments
… separated from Infrastructure Providers (InPs), Virtualized Network Environments (VNEs) have been regarded as a promising technology for flexibly utilizing shared communication network resources. VNEs also play a fundamental role toward virtualizing data centers. In this thesis, we suggest …
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Low-Overhead Packet Loss Diagnosis for Virtual Private Clouds using P4-Programmable NICs
The virtual private cloud, a logical division into tenants of a service provider's multi-tenant multi-cloud architecture, has become a major trend in the cloud computing industry because of its cost-effectiveness. Effective monitoring systems are critical for cloud tenants to identify and …
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Me, Myself, & Identity Online: Identity Salience on Facebook vs Non-Virtual Identity
… to connect people to one another through virtual networks of “friends” where members participate in the presentation of self virtually- through profile creation, maintenance, and exchanges of content. Social Networking Sites create a location for identity formation and projection that is …
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Temporal Bandwidth-Intensive Virtual Network Allocation Optimization in Data Centers
… services for customers that want virtual networks (VN) in a data center environment. In particular, we consider this problem in a temporal context where bandwidth-intensive requests from each VN may arrive randomly at a review point, which may last for a certain duration. Thus, at …
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Approaches to Joint Base Station Selection and Adaptive Slicing in Virtualized Wireless Networks
Wireless network virtualization is a promising avenue of research for next-generation 5G cellular networks. This work investigates the problem of selecting base stations to construct virtual networks for a set of service providers, and adaptive slicing of the resources between the service providers …
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Mapping the world with social buzz
… advancement of information technology, social networks have become popular platforms for people to share and discuss their activities and interests. The social network contents, the social buzz in these networks, are a valuable source for us to learn about the world. Meanwhile, the development …
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#ZimbabweanLivesMatter vs #ThisFlag: A comparative discourse analysis of two social media movements in Zimbabwe
… communications technology and the popularity of virtual networks such as Twitter, new forms of protest have emerged, forms centralised on interactive discourse. This study seeks to unpack this research problem by investigating two social media movements prolific under each administration, namely, …
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SDN based security solutions for multi-tenancy NFV
… of explosion of mobile devices, content, server virtualization, and advancement of cloud services. This increase has significantly changed traffic patterns within the enterprise data centres. Therefore, advanced technologies are needed to improve traditional network deployments to enable them to …
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Network layer support for overlay networks
Overlay networks are virtual networks formed by cooperating nodes that share an underlying physical network. They represent a flexible and deployable approach for applications to obtain new network semantics without modification of the underlying network, but they suffer from efficiency concerns. …
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Interaction between existing social networks and information and communication technology (ICT) tools : evidence from rural Andes
… The second theme, complementing existing social networks through ICT, reflects the interaction between the newly ICT-mediated information and virtual networks and the local existing social networks. However, these two themes were not evenly distributed across the communities studied. The evidence …
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Monitoring and verifying network behavior using data-plane state
Modern computer networks are complex, incorporating hundreds or thousands of network devices from multiple vendors performing diverse functions such as routing, switching, and access control across physical and virtual networks (VPNs and VLANs). As in any complex computer system, these networks are …
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A Novel Routing Strategy for Public, Wide Area ATM Networks
… that future Asynchronous Transfer Mode (ATM) networks will be partitioned into several logical (virtual) networks which serve calls belonging to different traffic classes. Because logical networks can be configured quickly and easily, (virtual) network topologies may change frequently as a …
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Automated Management of Network Slices with Service Guarantees
Future mobile networks are expected to support a diverse set of applications including high-throughput video streaming, delay-sensitive augmented reality applications, and critical control traffic for autonomous driving. Unfortunately, existing networks do not have the required management …
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SLICING-BASED RESOURCE ALLOCATION AND MOBILITY MANAGEMENT FOR EMERGING WIRELESS NETWORKS
… tremendous volume of data traffic in cellular networks. Moreover, with the feature of heterogeneous connectivity interfaces of these smart devices, it becomes more complex for managing the traffic volume in the context of mobility. To surmount this challenge, service and resource providers are …
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