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Survey on software-defined networking and network functions virtualisation in 5G emerging mobile computing

Survey on software-defined networking and network functions virtualisation in 5G emerging mobile computing

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This chapter contains a summary of 5G requirements and challenges, with emphasis on those supposed to be (partially) solved through SDN/ NFV control. Some relevant 5G use cases and services are summarised. A short presentation of SDN and NFV concepts and architectures is done related to layering, CPl and DPl issues, network operation systems (NOS) and software technologies, virtualisation, north-bound and south-bound interfaces, function chaining, scalability and real-time issues and so on. The second part of the chapter explores various architectures and implementations based on SDN/NFV in a 5G environment: distribution versus centralisation, unified CPl concepts in 5G/SDN, heterogeneous CRANs, cellular 5G with SDN control, an SDN approach for mobile cloud computing in 5G, backward compatibility and deployment issues.

Chapter Contents:

  • 5.1 Introduction
  • 5.2 Summary of 5G technology
  • 5.2.1 Requirements and challenges
  • 5.2.2 Key enablers and general design principles for a 5G network architecture
  • 5.3 Software-defined networking (SDN)
  • 5.3.1 SDN architecture
  • 5.3.2 Benefits of SDN architecture for 5G
  • 5.4 Network functions virtualisation (NFV)
  • 5.5 SDN-NFV cooperation
  • 5.6 SDN-and NFV-based architectures in 5G
  • 5.6.1 General requirements and framework
  • 5.6.1.1 End-to-end SDN in a wired-wireless scenario
  • 5.6.1.2 Standardisation work
  • 5.6.2 Examples of early SDN approaches in wireless networks
  • 5.6.3 Integrated SDN/NFV architectures
  • 5.6.3.1 CellSDN: a software-defined cellular core network
  • 5.6.3.2 A generic 5G architecture based on cloud and SDN/NFV
  • 5.6.3.3 Industrial 5G SDN/ NFV platform - examples
  • 5.6.3.4 A cloud approach for 5G: CRAN
  • 5.6.3.5 A framework for cellular software-defined networking
  • 5.6.3.6 SoftAir architecture
  • 5.6.3.7 Content and media delivery
  • 5.6.4 Fog/edge computing approach
  • 5.6.4.1 Cloud-RAN limitations
  • 5.6.4.2 Fog-based radio access network
  • 5.6.4.3 SDN and NFV support for F-RANs
  • 5.7 Conclusions
  • References

Inspec keywords: 5G mobile communication; software defined networking

Other keywords: SDN; software-defined networking; NFV control; 5G emerging mobile computing; network functions virtualisation

Subjects: Mobile radio systems

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