V2V Propagation in Mountainous Terrain: Part I-Experimental Configuration and Measurement Results

This paper analyzes statistical properties of the wireless vehicle-to-vehicle (V2V) communication channel in mountainous terrain near Provo, Utah with a channel sounding experiment. We employ a software-defined radio (SDR) wideband channel sounder that transmits a 64-carrier unmodulated waveform that conforms to the IEEE 802.11p standard. The channel statistics analyzed are the complementary cumulative distribution function (CCDF) of the received power and its correlation with the line-of-sight (LOS) signal, the power delay profile, and the average delay spread. The experimental results indicate the presence of non-LOS signals that appear capable of supporting short intervals of communication, although the LOS signal is still the dominant factor for V2V communication in mountainous terrain. The power delay profile also indicates the presence of non-LOS signals, and furthermore follows an exponential decay model in general.