Assay of IP mobility management in SDN based mobile network architecture

The evolution towards mobile networks flat architecture entreat a key-role for IP mobility management in providing the ubiquitous always-on network access services. This paper provides prospects for efficient mobility management in SDN plus mobile network architecture and describe important call control flows in inter system handover scenario. Distribution of gateway function approach has been followed and evolved with SDN technology. Key improvements with proposed architecture are to support seamless mobility in heterogeneous access environments, remove the chains of IP preservation and optimal data path management according to application needs. The paper assays the proposed evolution in terms of numbers of signaling messages processed by control entities for an inter system handover procedure relative to current mobile network architecture.