Stanco, Giovanni (2022) Performance of wireless networks for IoT and CPS: empirical evaluation and cybersecurity applications. [Tesi di dottorato]

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Abstract

The next industrial and technological revolution will be prompted by the connection of countless sensing CPS to the Internet, realizing the so-called IoT. A promising innovation in this context is the introduction of network technologies known as LPWAN that enable the connection of compact sensing devices deployed in outdoor environments to the Internet. Several are the domain fields in which IoT is tested and deployed, and several are the companies that are trying to take advantage of this revolution, projected to be worth at least $5.5 trillion by 2030. There are still some obstacles to fully exploit this new opportunity: the main of them is the absence of full knowledge about the possible application and usage of these new networks. Safety and security are two factors that should always be considered, for providing protection to customers and for preventing financial losses to companies. This work aims at demonstrating that it is possible to have secure CPS connected in IoT networks for security-critical applications. In order to fill this gap, we perform an empirical analysis of the overall performance of a system based on LPWAN, comparing the three most popular technologies nowadays available on the market. The information collected from this analysis can be exploited for tuning a monitoring platform that collects data about the status of a CPS. Furthermore, the continuous monitoring of the status of the network connection enables the capability of discerning components under attack and excluding these malicious entities from a secure system. In this way it is possible to realize secure communications between legitimate components of a CPS.

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