Mobile Channel Multipath Measurements and Statistical Characterization in Sub-6 GHz Bands

This paper compares mobile wideband channel characteristics obtained from measurements performed at 735 MHz, 2.5 GHz, and 3.5 GHz in urban environments in Rio de Janeiro, Brazil. Both macrocell and microcell scenarios were considered. To characterize the macrocell channel, the transmitter antenna was installed high above the ground, with the receiver antenna and equipment in an automotive van ran along routes up to 1.5 km from the transmitter. The transmitter antenna was installed on a 3m pole for the microcell measurements, and the van with the receiver equipment moved along a few hundred meters paths. Multipath power delay profiles were obtained using an OFDM sounding technique and processed to provide average excess delay and RMS delay spread values. Also, the cumulative distributions of the RMS delay spread were obtained.