1,720,979 research outputs found
5G service delivery platform: 360 VR vertical as an example
No full textOperators have been adopting the cloud-native paradigm for the roll-out of 5G architecture. With it goes the introduction of the service-based architecture as a key design pattern for realizing future control- and ultimately user-planes of mobile networks. The main benefits of this new design pattern are increased flexibility, meaning new business cases may be addressed while maintaining competitive cost levels, and also the ability to realise use cases which historically have required the full breadth of infrastructure level knowledge. We present a realization of a service delivery platform entirely built upon service-based architecture principles
Cloud-native 5G service delivery platform
No full textOperators have been adopting the cloud-native paradigm for the rollout of 5G architecture. With it goes the introduction of the service-based architecture as a key design pattern for realizing future control, and ultimately user planes of mobile networks. The main benefits of this new design pattern are the increased flexibility to address new business cases while maintaining competitive cost levels, while also benefitting the realization of use cases usually requiring the full breadth of infrastructure level network slicing. In this paper, we present a realization of a service delivery platform entirely built upon service-based architecture principles, showcasing the realization of control as well as user plane services along with early deployment insights
D3.10: FLAME platform architecture and infrastructure specification v2: A cloud-native service delivery platform
No full textThis report provides the second version of the FLAME platform architecture and infrastructure specification. It outlines therefore the blueprint that forms the basis for further specification but more importantly the implementation work towards a deployable FLAME platform within the infrastructures of Bristol and Barcelona, and other sites. The report builds on the first version of the architecture and focuses on the key updates to that first version
Operating a next generation media urban testbed
No full textThe adoption of 5G promises low latency and high throughput, greater adaptability of highly distributed compute and storage infrastructure, as well as configuration and management of a wide range of network services. This paradigm shift in network operations and usage results in a tighter integrationof the infrastructure with the platform that allows instantiating the media services. The setup of the infrastructure in use for an urban testbed requires operators to carefully plan to acquire equipment with the expected technical characteristics, as well as to meaningfully configure, integrate with the platform on top and setup tools to monitor it. In this paper we share our experience of deploying an infrastructure on the street that supports the FLAME platform. Specifically, we introduce key points to consider when first defining the infrastructure site and equipment, when configuring, operating and monitoring it; and when experiments are to be tested
Location-aware cloud native media service delivery
No full textThis paper discusses the Facility for Large-scale Adaptive Media Experimentation (FLAME) Platform, a Servicebased Architecture that demonstrates the concept of cloud native service orchestration and routing for media applications. This enables automated provisioning and management of microservices delivering a service function chain, which affords considerable flexibility and control to achieve delivery of defined Quality of Service to users in the face of varying demand, while at reasonable cost. The architecture of the system is presented, together with an exemplar media application illustrating automated routing and dynamic, automated and location-based control of microservices. Automated event detection and policies control the scaling of localised edge services, and user requests are automatically routed to local services. Illustrative examples of the performance characteristics on a testbed platform comparing two scenarios - scaled-in (one central server) and scaled-out (local content serving at the edge) - are discussed, as well as the time to switch between the scaling scenarios based on sensed local demand. Results indicate that on the testbed platform, switching between scaled-in and scaled out takes in the order of 2-3 seconds, and the scaled-out scenario has between a four-fold and six-fold user-experience performance gain over the scaled-in scenario
D3.7: FLAME technology roadmap V2
No full textThis report is the second technology roadmap for a ground-breaking media service delivery platform being developed by the FLAME project. The report describes the software products to be delivered at infrastructure, platform and media service layers and how combinations of products are used to exploit the benefits of highly distributed software-defined infrastructures. Each product is described in terms of features, baseline implementation technologies and release schedule. At the core of the roadmap is the FLAME platform that brings together components for orchestration, Service Function Routing, Service Function endpoint management and cross-layer management and control. A systems integration and testing plan describes the DevOps environment including multi-project structure, development workflows and continuous integration processes supported by build, provisioning, configuration and automated testing tools. A software integration infrastructure is designed that replicates a part of the production infrastructures in ways that allow flexible configuration of different cross-component test scenarios. Finally, the downstream staging and production infrastructures are summarised completing the end-to-end DevOps pipeline for efficient and high-quality delivery
Experimental methodology for urban-scale media trials v2: Design tools, processes and devOps infrastructure
No full textWhen deploying a digital media service on the FLAME platform, you are placing it in a responsive environment that reacts (using behaviours you have defined) in real-time to metrics of interest to you. Considering this behaviour as a continuous cycle of optimization in which your target user experience (UX) is negotiated with the most efficient use of available platform resources. This report describes the design tools, processes and DevOps infrastructure for experimentation of services on a high distribution 5G infrastructure including mobile edge computing
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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