SDN for 5G Mobile Networks: NORMA Perspective
To build a flexible and an adaptable architecture network supporting variety of services and their respective requirements, 5G NORMA introduced a network of functions based architecture breaking the major design principles followed in the current network
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1 Nokia Bell-Labs, Paris, France [email protected], [email protected] 2 IMDEA Networks Institute, Universisdad Carlos III de Madrid, Getafe, Spain [email protected] 3 King’s College of London, London, UK [email protected] 4 Telekom Innovation Laboratories, Berlin, Germany [email protected], [email protected] 5 ATOS Spain, Madrid, Spain [email protected] 6 NEC Laboratories, Princeton, USA [email protected] 7 Telefonica, Madrid, Spain [email protected] 8 TU Kaiserslautern, Kaiserslautern, Germany [email protected]
Abstract. To build a flexible and an adaptable architecture network supporting variety of services and their respective requirements, 5G NORMA introduced a network of functions based architecture breaking the major design principles followed in the current network of entities based architecture. This revolution exploits the advantages of the new technologies like Software-Defined Networking (SDN) and Network Function Virtualization (NFV) in conjunction with the network slicing and multi-tenancy concepts. In this paper we focus on the concept of Software Defined for Mobile Network Control (SDM-C) network: its definition, its role in controlling the intra network slices resources, its specif‐ icity to be QoE aware thanks to the QoE/QoS monitoring and modeling compo‐ nent and its complementarity with the orchestration component called SDM-O. To operate multiple network slices on the same infrastructure efficiently through controlling resources and network functions sharing among instantiated network slices, a common entity named SDM-X is introduced. The proposed design brings a set of new capabilities to make the network energy efficient, a feature that is discussed through some use cases. Keywords: 5G architecture · SDN · NFV · QoE · Energy efficiency · Network slicing
© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2016 D. Noguet et al. (Eds.): CROWNCOM 2016, LNICST 172, pp. 741–753, 2016. DOI: 10.1007/978-3-319-40352-6_61
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Introduction
By just observing our daily routines we understand the impact that mobile connectivity has on our lives. This trend will be even clearer when new services that are envisioned in these days will come to market: self-driving vehicles or the Internet of Things (IoT) will further increase the need for expanded and faster network connectivity and increases the requirements on a mobile network. This goal cannot be achieved by just extending the current 4G architecture: a complete re-thinking of the mobile network system towards the 5G networking is needed. The 5G NORMA1 project aims at providing such a new architecture. Its main char‐ acteristics will be flexibility and adaptability required to match the available network resources with the fluctuating demand which is the utmost requirement to maintain the economic viability of future networks. Due to steadily rising energy costs a strongly related important key performance indi
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