Connectivity Technologies for IoT [chapter]

Sunil Cheruvu, Anil Kumar, Ned Smith, David M. Wheeler
2019 Demystifying Internet of Things Security  
Internet of Things (IoT) is a set of technologies that are enabling new use cases and delivering services across a wide variety of markets and applications. When people think of IoT, they often think of home or personal IoT. However, IoT will play a role in many commercial applications such as smart manufacturing, smart cities, autonomous cars, building automation, and healthcare. How will an IoT-enabled device communicate what it knows to the Internet? Suitable connectivity solutions range
more » ... a multitude of wired connectivity technologies such as Ethernet to wireless technologies like Wi-Fi and even 5G cellular. Many solutions need a combination of multiple communication technologies. For example, a smart car system playing video or using GPS navigation might need 4G LTE in order to communicate with the outside world and Wi-Fi and Bluetooth to communicate with devices like phones and rear seat entertainment (RSE) used by the passengers. In this chapter, we will take a look at a selected set of connectivity technologies that enable these applications. Ethernet Time-Sensitive Networking (TSN) is reshaping the industrial communication landscape and laying the foundation for the convergence of Information Technology (IT) and Industrial Operations Technology (OT). TSN essentially is a set of features that have been added to standard Ethernet. By bringing industrial-grade robustness and reliability to Ethernet, TSN offers an IEEE standard communication technology that can be used to enable deterministic communications for industrial applications. Being an IEEE standard, it enables interoperability between standard compliant industrial devices from different suppliers. TSN removes the need for physical separation of critical and noncritical communication networks, reducing the cost of the infrastructure needed to allow open data exchange between operations technology network and enterprise/information technology network -a concept that is at the heart of the Industrial Internet of Things (IIoT). At the network system level, TSN supports deterministic communication based on network schedules that are distributed to devices via standard configuration interfaces. TSN standards address a wide range of functions, and their implementation can be similarly broad, encompassing various hardware elements such as endpoints and switches, embedded software, standard interfaces, routing algorithms, and configuration tools. To ensure the highest levels of TSN performance, a system-level solution is required that takes each element into account and provides a seamless interface between them. Seamless fault-tolerant communication and enhanced cybersecurity with robust network planning, configuration, and monitoring will be a necessity in the networks of the future.
doi:10.1007/978-1-4842-2896-8_5 fatcat:h2qsa6ofuveqxcl2bfijrxjc3y