Towards a dynamic QoS management in IMS transport layer via SDN
Sara Khairi, Mostafa Bellafkih, Brahim Raouyane · 2016
All real-time services provided by the IP Multimedia Subsystem (IMS) require QoS mechanisms to avoid traffic congestion. Recently, the Software Defined Networking (SDN) paradigm has emerged to enable dynamic network resources, and then a way to perform QoS management. The paper presents an approach to integrate the IMS with the SDN paradigm. The work is motivated by the lack of QoS management of real-time flows in the IMS transport layer, which can be performed through implementation over an SDN controller. The architecture proposed implements new modules in the SDN controller in order to enhance QoS management in the IMS transport layer. The feasibility and the performance of the approach proposed are assessed by experiments.