@article {lavdas2021adaptive,
	title = {An adaptive hybrid beamforming approach for 5G-MIMO mmWave wireless cellular networks},
	journal = {IEEE Access},
	volume = {9},
	year = {2021},
	pages = {127767{\textendash}127778},
	publisher = {IEEE},
	author = {Lavdas, Spyros and Gkonis, Panagiotis K. and Zinonos, Zinon and Trakadas, Panagiotis and Sarakis, Lambros}
}
