Lotus: Serverless In-Transit Data Processing for Edge-based Pub/Sub
Minghe Wang, Trever Schirmer, Tobias Pfandzelter, David Bermbach · 2023
Publish-subscribe systems are a popular approach for edge-based IoT use cases: Heterogeneous, constrained edge devices can be integrated easily, with message routing logic offloaded to edge message brokers. Message processing, however, is still done on constrained edge devices. Complex content-based filtering, the transformation between data representations, or message extraction place a considerable load on these systems, and resulting superfluous message transfers strain the network.