I. Introduction
Internet of Things (IoT) combines information technology with traditional industries, accelerating the construction of digitization, information technology, and intelligence, which is of great significance to promote the transformation, and upgrading of industries. The global system for mobile communication association (GSMA) estimates IoT connections will reach almost 25 billion globally by 2025 [1]. Thus, it can be seen that IoT technology will be deeply integrated into people’s daily life [2]. IoT enables all entities that can be independently tagged to form an interactive network, on the basis of which perception and control can be carried out, which reduces human consumption and improves accuracy and efficiency. IoT is a network of millions of devices worldwide with sensing capabilities interconnecting human beings and devices [3]. We collect diverse data from the real world through various sensing methods. These collected data are then transmitted using integrated mobile communication and IoT technologies. The collected data are further processed and analyzed using intelligent systems to predict certain situations, such as environmental changes and human behavior [4]. Therefore, we can use an IoT network to sense physical world attributes and provide intelligent decisions.