Path-loss Characteristics and Modeling for 2-300-GHz bands in Urban Microcell Environment

Sixth generation (6G) mobile communication networks will require extremely high-speed and high-capacity communications data rates exceeding 100 Gbps using sub-terahertz bands. However, path-loss characteristics above 100 GHz have not been sufficiently studied in terms of distance attenuation and frequency dependency. Therefore, to clarify the system performances of 6G in new frequency bands and determine the service frequency bands, it is needed to clarify the basic path-loss characteristics above 100 GHz. We investigated the path-loss characteristics and propagation mechanism from 2 to 300 GHz in an urban microcell (UMi) environment. We also clarified the dominant paths that affect the distance attenuation and frequency dependency of path loss.