This article discusses the potential of the Internet of Things (IoT) market, which is predicted to be worth USD 1.6 trillion by 2025. It also highlights the challenges and issues that need to be addressed in order to fully utilize the power of IoT, such as designing appropriate architecture and protocols to cater to the demands of edge computing and artificial intelligence. The goal of this Special Issue is to showcase the latest advances and directions in IoT architecture, protocols, and challenges for various applications.
