Wireless Protocols in Device Communication in the Industrial Internet of Things: Systematic Review.

The technological revolution proposed by the Internet of Things (IoT) allows interconnections between users, devices, and the internet. Regarding Industries, the interconnection between devices, industrial applications, and computer networks is called the Industrial Internet of Things (IIoT). Industrial environments present a particular scenario regarding the difficulties faced concerning wireless data exchange between devices. This article proposes an examination of the state of the art of wireless communication protocols used in industry 4.0 through the systematic literature review (SLR), where 10 papers were selected (from 179) to answer the research questions. As the main results of this review, we can mention the summary of the main characteristics of wireless communication protocols applied in the industry, an overview of the principal authors in this area (43 authors), and a summary of the main challenges. Among the main challenges are the optimization problem related to interference and noise in the different industrial environments, the impact on communication between wireless devices due to physical obstacles, and the natural restriction of resources concerning IoT and IIoT devices. Another challenge is the few protocols aimed at the industry that support IPV6. In this review, we identified a tendency to increase interest in this field of research as well as present open fields and opportunities, such as the development of lightweight protocols for devices with severe resource limitations, the need for solutions aimed at observability IIoT devices, and strategies aimed at minimizing the impacts of interference in wireless IIoT communications.