Directional Radio Channel Measurements at Mobile Station in Different Radio Environments at 2.15 GHz

Abstract

We have performed extensive radio channel measurements in different radio environments at 2.15 GHz frequency. A spherical array and a wideband radio channel sounder were utilized at the mobile station in order to characterize the spatial radio channel at the mobile. The measurement setup, presented in [1], enables the full 3D spatial and polarization characterization of the wideband mobile radio channel in real-time. Based on the comprehensive dataset of over 300.000 snapshots collected along over 9 km of measurement routes we present the cross-polarization power ratio and average elevation power distribution at the mobile station in different radio environments. We also present some interesting examples showing variation of the local azimuth and elevation power distributions when the mobile moves in the urban environment. The examples demonstrate the effectiveness of the measurements in characterizing the radio propagation in difficult radio environments.