Semantic IoT Service Communication—Impedance Matching Between Service Goal and Event Routing.

In IoT (Internet of Things) applications, there are many kinds of event flows. Without converging these flows based on their semantics, it is difficult to establish ultrascale‐connected IoT service systems. Event flow convergence may encompass event content aggregation, aggregated routing, and aggregated subscription matching. In our work, a semantic IoT service communication fabric is proposed to achieve this convergence, specifically for impedance matching between service computation and event communication, leveraging semantic knowledge technologies. Compared with classic semantic communication by abstracting the underlying network as a channel, our solution delves into the channel for impedance matching, that is, focusing on semantic event routing in the channel and semantic event content aggregation along routing paths. Multiple tenants are supported in the IoT service communication fabric, where each tenant can use virtual semantic interfaces to organize together its devices, IoT gateways, control centers, and data centers, and semantic event communication schemes and algorithms are proposed to map IoT services' goals into event routing. We finally conduct evaluations to show the effectiveness and applicability of our solution. [ABSTRACT FROM AUTHOR]