RT Journal Article T1 Monitoring in fog computing: state-of-the-art and research challenges A1 Abreha, Haftay Gebreslasie A1 Bernardos Cano, Carlos Jesús A1 Oliva Delgado, Antonio de la A1 Cominardi, Luca A1 Azcorra Saloña, Arturo AB Fog 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. PB Inderscience SN 1743-8225 YR 2021 FD 2021 LK http://hdl.handle.net/10016/34230 UL http://hdl.handle.net/10016/34230 LA eng NO This work has been (partially) funded by H2020 EU/TW 5G-DIVE (Grant 859881) and H2020 5Growth (Grant 856709). It has been also funded by the Spanish State Research Agency (TRUE5G project, PID2019-108713RB-C52 PID2019-108713RB-C52 / AEI / 10.13039/501100011033). DS e-Archivo RD 28 abr. 2024