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The role of edge computing in future 5G mobile networks: concept and challenges

The role of edge computing in future 5G mobile networks: concept and challenges

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Future 5G technologies are expected to overcome the challenges of next generation networks aiming to tackle the novel and manifold business requirements associated to different vertical sectors. Extraordinarily high speed and capacity, multi-tenancy, heterogeneous technologies convergence, on-demand service-oriented resource allocation or even coordinated, automated management of resources are only few examples of the complex demands 5G aims to undertake. The shift from centralized cloud computing-based services towards data processing at the edge is becoming one of the fundamental components envisaged to enable those future 5G technologies. Edge computing is focused on pushing processing to the network edge where all the actual interactions in the access networks takes place and the critical low-latency processing occurs. Combination of network functions virtualization (NFV) and edge-computing technologies and mechanisms provides a wide range of novel opportunities for value-added service provisioning covering different features required in future access networks, such as Quality of Service (QoS), security, multi-tenancy, and low latency. This chapter provides an overview of edge-computing technologies, from supporting heterogeneous infrastructure up to service provisioning methodologies related to the application-specific requirements. It describes the role of edge computing and NFV in future 5G mobile networks. It also provides an insight into how edge computing can potentially facilitate and expedite provisioning of security in 5G networks. The manuscript analyses the role of the networking resources in edge-computing-based provisioning, where the demands of 5G mobile networks are to be met with wireless-networking technologies, which in essence are different to wired technologies present in core data centers. Initial results obtained from the evaluations of wireless fog networking backhauls are presented, and the challenges ahead of the actual implementation of those technologies are also analyzed in the chapter.

Chapter Contents:

  • Abstract
  • 13.1 Introduction
  • 13.2 Multi-tenancy over the cloud-RAN
  • 13.2.1 Enabling technologies
  • 13.2.1.1 Cloud-enabled small cell (CESC)
  • 13.2.1.2 Light Data Centre (Light DC)
  • 13.2.2 Multi-tenant multi-service management and orchestration
  • 13.2.3 Benefits and challenges
  • 13.3 Security in 5G networks
  • 13.3.1 Research challenges
  • 13.3.2 A potential approach
  • 13.4 Wireless backhauling in 5G
  • 13.5 Conclusion
  • Acknowledgments
  • References

Inspec keywords: next generation networks; cloud computing; virtualisation; telecommunication security; telecommunication computing; resource allocation; 5G mobile communication; quality of service

Other keywords: quality of service; wired technology; access networks; network functions virtualization; value-added service provisioning; future 5G mobile networks; next generation networks; NFV; QoS; heterogeneous technology convergence; on-demand service-oriented resource allocation; coordinated automated resource management; wireless fog networking backhaul evaluation; 5G network security; centralized cloud computing-based services; heterogeneous infrastructure; multitenancy; wireless-networking technology; edge computing; data processing

Subjects: Information networks; Mobile radio systems; Communications computing; Internet software

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