Empirical characterization of wideband indoor radio channel at 5.3 GHz

Characteristics of wideband indoor radio channel at 5.3 GHz were defined ba sed on an extensive measurement campaign using a wideband channel sounder w ith 19 ns delay resolution. Pathloss exponents were 1.3-1.5 in LOS and 2.9- 4.8 in non line of sight (NLOS). Large difference in NLOS exponents was due to different dominating propagation mechanisms in different types of build ing structures. The delay dispersion was characterized by cumulative distri bution functions (cdf) of the rms delay spreads, the values for cdf = 0.9 v aried from 20 to 180 ns in different setups in office building and large ha ll environments. The correlation functions of the radio channel in spatial and frequency domains were extracted. Small scale models for five typical i ndoor scenarios were developed using tapped delay lines.