Juho Lee, Erika Tejedor, Karri Ranta-aho, Hu Wang, Kyung Tak Lee, Eliane Semaan, Eiman Mohyeldin, Juyeon Song, Christian Bergljung, Sangyeob Jung. Spectrum for 5G: Global Status, Challenges, and Enabling Technologies. IEEE Communications Magazine, 56(3):12-18, 2018. [doi]
Abstract is missing.