Impact of the Propagation Model on the Capacity in Small‐Cell Networks: Comparison Between the UHF/SHF and the Millimeter Wavebands

This work shows how both frequency and the election of path loss model affect estimated spectral efficiency. Six different bands are considered, ranging from 2.6 GHz in ultra high (UHF) band to 73 millimeter wave (mmWaves), using single-slope two-slope path-loss models. We start by comparing four urban models for UHF: urban/vehicular pedestrian test environment ITU-R M. 1255 Report, which includes micro line-of-sight (LoS) NLoS, 2135 Report. Then, we consider mmWaves taking into consideration modified Friis propagation model, followed an analysis throughput 2.6, 3.5, 28, 38, 60, bands. have found that signal-to-interference-plus-noise ratio, as with more realistic is lower devices within break-point transmitter, a small distance UHF/SHF band. As result, efficiency higher than spectrum when cell radius under 40 m but not cells larger. Consequently, will be valuable get small. also find capacity considerably smaller one would obtain one-slope there little difference Thus, smaller, use may underestimate number must deployed.