Self-adaptive end-to-end resource management for real-time monitoring in cyber–physical systems

Jo, Hyun-Chul; Jin, Hyun-Wook; Kim, Joongheon

doi:10.1016/j.comnet.2023.109669

Cited by 1 publication

(2 citation statements)

References 37 publications

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“…Existing research concerning end-to-end support within MQTT is predominantly focused on security investigations [41][42][43][44][45][46], with some research works [47][48][49][50] also touching on end-to-end services. Park et al [42] introduced a security architecture and protocols designed to establish MQTT security within wireless sensor networks.…”

Section: End-to-end Services Of Mqttmentioning

confidence: 99%

“…Ali et al [49] discussed the implementation of an improved TCP-based MQTT network for efficient communication in smart cities, emphasizing quality of service (QoS) considerations for reliable end-to-end service assurance. Jo et al [50] introduced a self-adaptive resource management framework for large-scale cyber-physical systems (CPS) that maintains low end-to-end monitoring delays while ensuring high monitoring resolution.…”

Section: End-to-end Services Of Mqttmentioning

confidence: 99%

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E-MQTT: End-to-End Synchronous and Asynchronous Communication Mechanisms in MQTT Protocol

Im,

Lim

2023

Applied Sciences

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Message Queuing Telemetry Transport (MQTT) enables asynchronous confirmation of message reception by brokers but lacks a way for publishers to know when subscribers receive their messages without adding additional communication overhead. This paper addresses this problem by improving MQTT to establish end-to-end communication between a publisher and subscribers, reducing message exchanges, using what is called End-to-End MQTT (E-MQTT). In E-MQTT, a publisher sets the number of responses that it will wait for when it sends a message. After the broker collects the response messages from subscribers, it sends one aggregated response back to the publisher. The publisher also can receive the response message synchronously or asynchronously. Experimental results consistently show that E-MQTT outperforms traditional MQTT in terms of delay, especially when the publisher needs to monitor when its query message is received by subscribers. Although E-MQTT packets are slightly larger due to additional fields, the difference in packet size compared to MQTT is not significant.

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