The Industrial Internet of Things (IIoT) is no longer a trend that has proved to be an extremely successful technology that many modern digital-based businesses use to quickly expand their operations. The IIoT provides real-time data that is critical for making snap decisions based on different efficient AI methods. It supports a product's entire lifecycle, from design and manufacturing to use, service, and remanufacture. Through technical and financial information, the IIoT connects the user with the product and the business. It also creates emotional and immersive links between the user and the product. Advanced intertwined networks of smart sensors and personalized cloud services are the means of delivering the right data at the right time to allow for faster decision making for more adaptive, agile, and scalable services that make the difference for businesses that cater to their customers' needs.

This Special Issue is devoted to interdisciplinary research that contributes to IIoT's current power. It is seeking cutting-edge contributions to basic research that enables IIoT as well as groundbreaking industrial smart sensor research applications.