Reliable Image Transmission in CPS-based Pub/Sub
Journal:
arXiv
Published Date:
Jun 28, 2025
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 while the
MQTT-based system sustains reliable transmission under normal conditions, its
recovery capability depends on the failure point, with complete restoration
occurring when disruptions affect the Orchestrator Node and partial recovery
when the Producer Node or Broker are affected. The study also confirmed that
the system prevents duplicate errors and adapts well to increasing network
demands, reinforcing its suitability for industrial applications that require
efficient and resilient data handling.
