Reliable Image Transmission in CPS-based Pub/Sub
Everson Flores, Bruna Guterres, Thomaz Pereira Junior, Paula Barros, Alberto Cabral, Cristiana Lima Dora, Marcelo Malheiros, Marcelo Pias

TL;DR
This paper evaluates the reliability of MQTT-based image transmission in industrial IoT and CPS systems under high traffic and network disruptions, highlighting its strengths and failure modes.
Contribution
It provides an experimental analysis of MQTT protocol performance for real-time image sharing in industrial scenarios with network failures.
Findings
MQTT sustains reliable transmission under normal conditions.
Complete recovery occurs when disruptions affect the Orchestrator Node.
System prevents duplicate errors and adapts to increased network demands.
Abstract
Developments in communication and automation have driven the expansion of distributed networks, essential for IoT and CPS development in industrial applications requiring reliable image processing and real-time adaptability. Although broadly adopted, there is a literature gap regarding the performance of MQTT protocol for image sharing and transmission under high-traffic scenarios with intermittent connectivity, restricting its use in critical IoT and CPS applications. In this context, the present work examines the reliability of real-time image transmission in IoT and CPS industrial systems that utilize the MQTT-based publish/subscribe communication model. It focuses on scenarios with network interruptions and high data traffic, evaluating the performance of a distributed system through a series of controlled testbed validation experiments. Experimental validation demonstrated that…
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Taxonomy
TopicsNetwork Time Synchronization Technologies · IoT Networks and Protocols · Energy Efficient Wireless Sensor Networks
