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The modern industrial and substation automation Ethernet networks have demanding requirements about high availability. Recently, the IEEE 802.1 WG proposes the IEEE 802.1aq, also known as Shortest Path Bridging, to manage Ethernet redundant networks. The IEEE 1588 protocol can exploit the SPB capabilities to manage multiple paths in order to improve synchronization availability. In the paper, the...
This paper deals with time synchronization of devices attached to a smart grid, whose accuracy tightly depends on the accurate estimation of the Time of Arrival (ToA) of the synchronization related messages sent over the power line communication systems. Usually smart grids are quite complex “systems of heterogeneous systems”: the aim of this paper is to suggest a ToA detection mechanism that can...
This paper deals with the problem of coexistence of wireless sensor networks (WSNs) for industrial applications, proposing new approaches. In fact, if several WSNs operate in the same area, the reliability of the system rapidly decreases, especially if static radio channel assignment WSNs and frequency hopping WSNs are mixed. The proposed architecture is based on a collaborative approach that exploits...
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