Wideband characterization of microcellular suburban mobile radio channels at 1.89 GHz

This paper reports the measurement and analysis of a wideband radio channel at 1.89 GHz within a suburban propagation environment. Mean delay spread was found to be 2.000 μs and 1.928 μs for LoS and NLoS conditions respectively. The coherence bandwidth that characterizes the area varies from 123 kHz in NLoS cases to 103 kHz in LoS cases, providing significant data rates. Measured delay spread was found to be highly variable with increasing separation between transmitter and receiver. Finally, coherence bandwidth is found to be inversely proportional to the RMS delay spread and modeled in a minimum mean square error sense.