Preliminary results of channel characterization at 700MHz band in urban and rural regions

This paper presents the preliminary results of channel characterization in the 700 MHz band, based on measurements of an OFDM modulated signal in urban and rural environments. This band will be used for mobile wideband communications in Brazil. An investigation of the dispersion parameters of the channel was carried out in the two different environments aiming a comparison between results of mean excess delay and RMS delay spread, useful for systems design.