1. METIS.Mobile and wireless communications enablers for the 2020 information society, 30 April 2015
2. Cao, Z., Zhao, X., Soares, F.M.: 38-GHz millimeter wave beam steered fiber wireless systems for 5G indoor coverage: architectures, devices, and links. IEEE J. Quantum Electron. J. 53(1), 1–9 (2017)
3. Boccardi, F., Heath, R.W., Lozano, A.: Five disruptive technology directions for 5G. IEEE Commun. Mag. J. 52(2), 74–80 (2014)
4. Yuan, Y., Zhao, X.: 5G: vision, scenarios and enabling technologies. ZTE Commun. J. 13(1), 69–79 (2015)
5. Cid, E.L., Taboas, M.P., Sanchez, M.G., Alejos, A.V.: Microcellular radio channel characterization at 60 GHz for 5G communications. IEEE Antennas Wirel. Propag. Lett. J. 99, 1–4 (2017)