deployed in many different fields of applications such as, for example, factory automation, motion control, process automation, networked control systems, building automation, automotive systems, etc. Fieldbuses  have been the networks traditionally employed in these applications; they have been used indicatively since 1990 and, currently, hundreds of millions of nodes have been already installed. In the last years (since 2000, roughly), real-time Ethernet (RTE) networks  have begun to be profitably adopted as well, thanks to their noticeable performance figures and, nowadays, their deployment is increasing progressively. At the same time, the impressive widespread use of the most popular wireless communication systems (e.g., the IEEE 802.11 Wireless LAN , the IEEE 802.15.4 Wireless PAN , and Bluetooth ) along with the considerable improvemen
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