Cloud-Edge Interoperability for Demand Response-Enabled Fast Frequency Response Service Provision. - Athanasios Bachoumis; Nikos Andriopoulos; Konstantinos Plakas; Aristeidis Magklaras 001; Panayiotis Alefragis; Georgios Goulas; Alexios N. Birbas; Alex Papalexopoulos (IEEE Trans. Cloud Comput., 2022)