A very fast ray-based field strength prediction tool for urban microcels operating in the UHF-band

Applying and Comparing Two Measurement Approaches for the Estimation of Indoor WiFi Coverage

“…Another class of models is statistical (or site-specific) models. This class includes classical models [11], [12], and [13], and many followers also take into account floor and wall losses with recent empirical models such as those in [14] and [15]. The statistical models are easy and fast to use and the site-specific adjustments require only the linear regression to be used.…”

“…We have compared the measured attenuation values with two simple statistical attenuation prediction models: a lognormal shadowing path model [11] and a simplified dual slope model [12], [13]. In the log-normal shadow model, the attenuation, or path loss, is expressed as…”