3 research outputs found
5G Network Slicing using SDN and NFV: A Survey of Taxonomy, Architectures and Future Challenges
In this paper, we provide a comprehensive review and updated solutions
related to 5G network slicing using SDN and NFV. Firstly, we present 5G service
quality and business requirements followed by a description of 5G network
softwarization and slicing paradigms including essential concepts, history and
different use cases. Secondly, we provide a tutorial of 5G network slicing
technology enablers including SDN, NFV, MEC, cloud/Fog computing, network
hypervisors, virtual machines & containers. Thidly, we comprehensively survey
different industrial initiatives and projects that are pushing forward the
adoption of SDN and NFV in accelerating 5G network slicing. A comparison of
various 5G architectural approaches in terms of practical implementations,
technology adoptions and deployment strategies is presented. Moreover, we
provide a discussion on various open source orchestrators and proof of concepts
representing industrial contribution. The work also investigates the
standardization efforts in 5G networks regarding network slicing and
softwarization. Additionally, the article presents the management and
orchestration of network slices in a single domain followed by a comprehensive
survey of management and orchestration approaches in 5G network slicing across
multiple domains while supporting multiple tenants. Furthermore, we highlight
the future challenges and research directions regarding network softwarization
and slicing using SDN and NFV in 5G networks.Comment: 40 Pages, 22 figures, published in computer networks (Open Access
Business-driven management of differentiated services
Several intra- and inter-domain quality of service
(QoS) provisioning mechanisms for IP networks have been
researched and developed using Differentiated Services
(DiffServ) technology. However, the incremental efforts needed to
manage DiffServ networks from a business-oriented viewpoint
have received relatively little attention. This paper addresses this
gap and presents a framework for achieving business-driven QoS
provisioning in DiffServ over MPLS networks. We provide a rich
model of SLA and business indicators as well as reasonable
mapping functions that define, with key degrees of importance,
the impact of business indicators over service management
policies. Business and service indicators are used to control static
and dynamic admission of services. The paper advances the state
of the art by considering the influence of business-level objectives
on the policy refinement process. We evaluate and discuss the
effectiveness of our approach through a simulation environment
that we developed over OPNET
Business-driven Management of Differentiated Services
Abstract — Several intra- and inter-domain quality of service (QoS) provisioning mechanisms for IP networks have been researched and developed using Differentiated Services (DiffServ) technology. However, the incremental efforts needed to manage DiffServ networks from a business-oriented viewpoint have received relatively little attention. This paper addresses this gap and presents a framework for achieving business-driven QoS provisioning in DiffServ over MPLS networks. We provide a rich model of SLA and business indicators as well as reasonable mapping functions that define, with key degrees of importance, the impact of business indicators over service management policies. Business and service indicators are used to control static and dynamic admission of services. The paper advances the state of the art by considering the influence of business-level objectives on the policy refinement process. We evaluate and discuss the effectiveness of our approach through a simulation environment that we developed over OPNET