SDN/NFV Architectures for Edge-Cloud Oriented IoT: A Systematic Review

The integration of Software-Defined Networking (SDN) and Network Functions Virtualization (NFV) has emerged as a promising approach to optimize the performance and management of IoT systems, especially in edge-cloud computing environments. SDN provides centralized control and programmability, while NFV enables the virtualization of network functions, enhancing network flexibility and scalability. This paper presents a systematic review of SDN and NFV architectures for Edge-Cloud oriented IoT applications. We explore their benefits, challenges, and the synergy between SDN and NFV in enabling efficient data processing, resource management, and reduced latency in IoT systems. Through an extensive analysis of the literature, we highlight existing solutions, identify open issues, and propose directions for future research in this domain.