Vision towards 5G : comparison of radio propagation models for licensed and unlicensed indoor femtocell sensor networksShabbir, Noman; Kütt, Lauri; Alam, Muhammad Mahtab; Roosipuu, PriitPhysical communication2021 / art. 101371 https://doi.org/10.1016/j.phycom.2021.101371 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS