Software-Defined Network (SDN) Architecture and Security Considerations for 5G Communications

2. State Of Art

The author (Datsika et al., 2017) discussed about the 5G network management frameworks. The virtualization components in the framework enable the additional service provider-based network service. The problem arises due to the additional service providers in the network service chain. Also, the priority network service chain management plan distributed for additional application flows was introduced. Evaluation result indicates the performance gain at service levels of additional service providers, which demonstrated the advantages of introducing priority in network service chain deployment.

The parameters like frequency spectrum, bandwidth, security and various other factors can cause the trade-off problem. Software Limited Radio and Software Limited Networks are the best solution to overcome these problems (Cho et al., 2014). Cross layer structure can combine the properties of SDR and SDN. As simulation rating result indicates the proposed configuration can effectively uses the frequency spectrum and significantly improve network performance.

Ian F. Akyildiz, Pu Wang et.al (Akyildiz et al., 2015) introduced a new paradigm called SoftAir for Fifth generation networks. In particular, theory concepts of network function cloud configuration and network virtualization was demoralized to provide highly scalable and flexible network architecture. This architecture helps to make changes in the hardware infrastructure and in software algorithms through the control and data planes to improve in energy efficiency.