Intelligent IoT for the Digital World

3Cross‐Domain Resource Management Frameworks

3.1 Introduction

Due to the explosive increase in devices and data, and unprecedentedly powerful computing power and algorithms, IoT applications are becoming increasingly intelligent, and are shifting from simple data sensing, collection, and representation tasks towards complex information extraction and analysis. To support future diverse intelligent IoT applications, multi‐tier computing resources are required, as well as efficient cross‐domain resource management, as discussed in the previous chapter. Under this novel computing and service architecture for intelligeng IoT, fog computing plays a crucial role in managing cross‐domain resources, as it is the bridge connecting centralized clouds and distributed network edges or things (Yang, 2019).

Just as centralized data centers build the cloud infrastructure, geo‐distributed fog nodes (FNs) are the building blocks of a fog network. FNs embody a variety of devices between end‐users and cloud data centers, including routers, smart gateways, access points (APs), base stations (BSs), as well as portable devices such as drones, robots, and vehicles with computing and storage capabilities. Therefore, fog computing will not only be at the network perimeter but also span along the cloud‐to‐things continuum, pooling these distributed resources to support applications. Through efficient resource sharing and collaborative task processing among FNs and between FNs and cloud/end, fog computing ...