A Review on Fog Computing: Research Challenges and Future Directions. Al-Rafidain Engineering Journal (AREJ), [S. l.], v. 28, n. 1, p. 341–350, 2023. DOI: 10.33899/rengj.2022.136642.1211. Disponível em: https://rengj.uomosul.edu.iq/index.php/rengj/article/view/30850. Acesso em: 26 jun. 2026.