SDN Based 5G Network Architecture For Latency Critical Services

Abstract

Software-Defined Networking appears to be a promising technology to provide flexible Quality
of Service and ultra-reliable low latency. By modifying the current LTE architecture and integrating
OpenFlow to the 5G architecture, it promises to fulfil the requirements of the end-users and to achieve better
performances. This research presents SDN-based 5G network architecture to support next generation
mission critical services. SDN allows for better evolvability of the data plane without depending on a slew
of management or control protocols, allows for centralized control of the overall infrastructure, and allows
for a richer feature set based on its programmable nature. The proposed architecture is characterized by a
clear separation of the control and data planes that provides a latency improvements up to 75% compared to
3GPP Release 12 compliant 4G systems.