Comparison Analysis of 2.4 GHz and Mm-wave V2V Channel Modelling Based on Measurements

In this work, a recently conducted measurement campaign for millimeter wave (mm-wave) and sub-6 GHz vehicle to vehicle (V2V) propagation channel characterization is introduced. Two vehicles carrying a transmitter (Tx) and a receiver (Rx) respectively were following with each other at an average speed of 30 km/h in the mountain area of Zhoushan, Zhejiang Province, China. The measurement was conducted with 25 MHz bandwidth at center frequency of 39 GHz and 2.4 GHz. The channel parameters investigated include the shadowing, fast fading and their auto correlations. 7 kinds of distributions of analytical expressions were used to fit the shadowing and fast fading. The results show that the shadowing and fast fading at 2.4 GHz are more severe than those at 39 GHz. After segmentation, most shadowing and fast fading segments follow gaussian distribution. Furthermore, the shadowing and fast fading at 2.4 GHz have more spacial consistency than those at 39 GHz.