Guest editorial: Artificial intelligence-driven fog-computing-based radio access networks

The edge cache is an effective way to reduce the heavy traffic load and the end-to-end latency in radio access networks (RANs) for supporting a number of critical Internet of Things (IoT) services and applications. It has been verified to provide high spectral efficiency, high energy efficiency, and low latency. To exploit the advantages of edge cache, a paradigm of fog computing-based radio access networks (F-RANs) has emerged to provide great flexibility to satisfy quality-of-service requirements of various IoT applications in the fifth generation (5G) wireless systems.