Measurements and Analysis of MQTT Response Times in Cloud and Edge with 5G and Wi-Fi 6

Weifan Zhang, Sebastian Bro Damsgaard, Sokol Kosta, Preben Mogensen

Abstract: Cloud and edge computing play a crucial role in enabling the intelligence of Industry 4.0, while wireless tech-nologies like 5G and Wi-Fi 6 enhance its flexibility. However, selecting the appropriate technologies is nontrivial. In this paper, we present our measurements (over 360 hours) and analysis of response times in cloud and edge computing using different network access methods. We provide recommendations for tech-nology selection based on our findings. Our results highlight the unique advantages of 5G and Wi-Fi 6 at different percentiles, and the characteristics of cloud and edge computing in terms of workload processing and network propagation. The choice between these technologies should consider the Quality of Service (QoS) requirements and processing workloads of applications, as well as the computational resources of edge and cloud servers.