Abstract
With The rapid growth of mobile networks data and the emergence of the new services and applications, Mobile operators should provide a several solutions to cope with the challenges of the next 5G mobile networks and to reduce costs. For these reasons, SDN was proposed to be one of the key technology trends that will facilitate the required architectural agility needed in the next 5G mobile networks.Software Defined Networking (SDN) is the highly promising technology to provide innovation and enforce the main drivers in 5G mobile networks such as flexibility, suability, service–oriented management and to reduce costs by the softwarization of the 5G Core networks functions.Thus, there is an immediate need to study the fundamental architectural principles of SDN, and to analyze the integration and application scenarios of this architecture into the next 5G mobile networks. In this paper, we present a survey on the most relevant research works on SDN concepts and SDN integration in mobile networks. We propose a SDN-based architecture for 5G mobile network; we give an over-view of SDN requirements and challenges for SDN integration in 5G, we address the benefits of IPv6 over SDN in 5G and finally we provide the benefits of SDN integration in 5G mobile networks.
Highlights
The exponential growth of data traffic,connected devices, and the reduction of latency and costs are considered as major challenges for the future mobile communication networks[1].This growth is based on the new mobile services and applications,such as mobile games,mobile videos and location-based check –in services [2]
We propose a Software Defined Networking (SDN)-based architecture for 5G mobile network; we give an overview of SDN requirements and challenges for SDN integration in 5G, we address the benefits of IPv6 over SDN in 5G and we provide the benefits of SDN integration in 5G mobile networks
The integration of SDN and network function virtualisation (NFV) in 5G mobile networks will minimize the changes in network elements,it will response to traditional network architecture limitations and will introduce centralized management and higher programmability in 5G
Summary
The exponential growth of data traffic ,connected devices, and the reduction of latency and costs are considered as major challenges for the future mobile communication networks[1].This growth is based on the new mobile services and applications ,such as mobile games ,mobile videos and location-based check –in services [2]. The afore-mentioned challenges cannot be addressed without radically changing the current 4G architecture [2] and their components To achieve this gaol, cellular operators investigate the possibility of commodity hardware implementations in order to exploit the benefits of cloud technology by means of the SDN and virtualisation [3]. Current standardizations and specifications of SDN are focussed to define networks the fine-grained quality of service (QoS) over the network architecture In this area ,the SDN will provide the possibility of enhancement of the Quality of experience (QoE) for delay-sensitive and jitter-sensitive applications such as cloud gaming ,It will simplify flow management and QoS provisioning by controlling the movement of network functions, storaging of popular content [4] and controlling QoE in 5G network .SDN will help operators to make use of the unified, less complex ,less expansive and adjustable configuration of the network behaviour [4].
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