Abreha, Haftay GebreslasieBernardos Cano, Carlos JesúsOliva Delgado, Antonio de laCominardi, LucaAzcorra Saloña, Arturo2022-02-242022-02-242021Abreha, H. G., Bernardos, C. J., Oliva, A. D. L., Cominardi, L. & Azcorra, A. (2021). Monitoring in fog computing: state-of-the-art and research challenges. International Journal of Ad Hoc and Ubiquitous Computing, 36(2), 114.1743-8225http://hdl.handle.net/10016/34230Fog computing has rapidly become a widely accepted computing paradigm to mitigate cloud computing-based infrastructure limitations such as scarcity of bandwidth, large latency, security, and privacy issues. Fog computing resources and applications dynamically vary at run-time, and they are highly distributed, mobile, and appear-disappear rapidly at any time over the internet. Therefore, to ensure the quality of service and experience for end-users, it is necessary to comply with a comprehensive monitoring approach. However, the volatility and dynamism characteristics of fog resources make the monitoring design complex and cumbersome. The aim of this article is therefore three-fold: 1) to analyse fog computing-based infrastructures and existing monitoring solutions; 2) to highlight the main requirements and challenges based on a taxonomy; 3) to identify open issues and potential future research directions.17eng© 2021 Inderscience Enterprises Ltd.Fog computingEdge computingCloud computingResource monitoring and managementresearch articleTelecomunicacioneshttps://doi.org/10.1504/ijahuc.2021.113384open access1142130International Journal of Ad Hoc and Ubiquitous Computing36AR/0000030036