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End-to-end 5G network slicing that spans across diverse access and core networks, as well as cloud and edge infrastructure, promises to satisfy on-demand the requirements of different vertical applications in a fast and cost-efficient manner. However, in order to achieve this, slice management systems need to combine different types of orchestrators. The combined usage of such orchestrators can be performed in many ways and related studies of standardization bodies have led to various open issues. This paper presents a solution based on a multi-tier orchestrator which glues NFV, MEC, and Cloud-native orchestrators using API abstraction layers and inter-orchestrator coordination workflows, while revisiting some standardized directives for NFV-MEC integration. The multi-tier orchestrator is evaluated against standard approaches that are based on the aforementioned directives, showing performance enhancements of up to 13x in terms of CPU load of certain orchestrator hosts in scenarios where up to 15 services are instantiated concurrently in an integrated NFV-MEC environment.
", "funding": [ { "award": { "acronym": "5GCITY", "id": "00k4n6c32::761508", "identifiers": [ { "identifier": "https://cordis.europa.eu/projects/761508", "scheme": "url" } ], "number": "761508", "program": "H2020", "title": { "en": "5GCITY" } }, "funder": { "id": "00k4n6c32", "name": "European Commission" } } ], "languages": [ { "id": "eng", "title": { "en": "English" } } ], "publication_date": "2020-02-27", "publisher": "Zenodo", "resource_type": { "id": "publication-conferencepaper", "title": { "de": "Konferenzbeitrag", "en": "Conference paper" } }, "rights": [ { "description": { "en": "The Creative Commons Attribution license allows re-distribution and re-use of a licensed work on the condition that the creator is appropriately credited." }, "icon": "cc-by-icon", "id": "cc-by-4.0", "props": { "scheme": "spdx", "url": "https://creativecommons.org/licenses/by/4.0/legalcode" }, "title": { "en": "Creative Commons Attribution 4.0 International" } } ], "subjects": [ { "subject": "NFV, MEC, slicing, 5G, orchestration" } ], "title": "Enhancing the performance of 5G slicing operations via multi-tier orchestration", "version": "pre-print" }, "parent": { "access": { "owned_by": { "user": 73409 } }, "communities": { "default": "57a7df0c-7154-448c-9cf8-b687968621cf", "entries": [ { "access": { "member_policy": "open", "members_visibility": "public", "record_policy": "open", "review_policy": "open", "visibility": "public" }, "children": { "allow": false }, "created": "2019-02-06T11:18:33.698826+00:00", "custom_fields": {}, "deletion_status": { "is_deleted": false, "status": "P" }, "id": "57a7df0c-7154-448c-9cf8-b687968621cf", "links": {}, "metadata": { "curation_policy": "", "page": "Delivering on the 5G promise of increased data rates, and ubiquitous coverages, poses stringent requirements on traditional vertically integrated operators. In particular, telecom operators are expected to massively roll out Small Cells, which requires finding appropriate urban spaces with both backhaul and energy availability. Network sharing becomes essential to unlock those commercial massive deployments. The open access model, or neutral host, will come to play a key role on the deployment of 5G networks, especially in urban scenarios where very dense Small Cell deploymens are required.
\r\n\r\nIn parallel recent trends are paving the way towards the development of new, heterogeneous and distributed cloud paradigms that significantly differ from today’s established cloud model: with edge computing, cloud architectures are
\r\npushed all the way to the edge of the network, close to the devices that produce and act on data. We posit that there are two sets of players perfectly poised to take advantage of both trends since they already own the infrastructure needed
\r\nto build edge deployments: telecommunication providers and municipalities. 5GCity focuses on how common smart city infrastructure (i.e.,small cells and processing power at the very edge of networks) can bring benefit to both players
\r\nbased on resource sharing and end-to-end virtualization, pushing the cloud model to the extreme edge.
5GCity will design, develop, deploy and demonstrate a distributed cloud and radio platform for municipalities and infrastructure owners acting as 5G neutral hosts. 5GCity’s main aim is to build and deploy a common, multi-tenant, open platform that extends the (centralized) cloud model to the extreme edge of the network, with a demonstration in three different cities (Barcelona, Bristol and Lucca). 5GCity will directly impact a large and varied range of actors: (i) telecom providers; (ii) municipalities; and (iii) a number of different vertical sectors utilizing the city infrastructure
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", "description": "Open repository for EU-funded research outputs from Horizon Europe, Euratom and earlier Framework Programmes.", "organizations": [ { "id": "00k4n6c32" } ], "page": "The EU Open Research Repository is a Zenodo-community dedicated to fostering open science and enhancing the visibility and accessibility of research outputs funded by the European Union. The community is managed by CERN on behalf of the European Commission.
\nThe mission of the repository is to support the implementation of the EU's open science policy, providing a trusted and comprehensive space for researchers to share their research outputs such as data, software, reports, presentations, posters and more. The EU Open Research Repository simplifies the process of complying with open science requirements, ensuring that research outputs from Horizon Europe, Euratom, and earlier Framework Programmes are freely accessible, thereby accelerating scientific discovery and innovation.
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