Investigation on Stationarity of V2V Channels in a Highway Scenario

This contribution investigates the stationarity of the vehicle to vehicle (V2V) channel in terms of distance and time. Due to high inherent mobility, the channel can not be assumed to follow the wide sense stationary (WSS) and uncorrelated scattering (US) assumption. Therefore, new evaluation methods have to be applied. We assess the stationarity for a V2V highway scenario using the generalized local scattering function (GLSF) and its collinearity based on measurements. We compare results for exemplary traffic situations and investigate the influence of the antenna placements on the stationarity of the channel. Our results show a strong relation between the stationarity time and the change and rate-of-change of distance between transmitter and receiver.