Novel 3-D Irregular-Shaped Geometry-Based Channel Modeling for Semi-Ellipsoid Vehicle-to-Vehicle Scattering Environments

This letter presents a 3-D irregular-shaped geometry-based stochastic model for vehicle-to-vehicle (V2V) radio propagation environments, in which an asymmetric directional multiple input and multiple output technique is employed at the mobile transmitter (MT). The time-varying geometric path lengths are introduced in the proposed channel model to capture the non-stationarity, which is caused by the motion of the MT and mobile receiver. More importantly, the impacts of the model parameters and non-stationarity, i.e., relative moving directions and relative moving time, on the channel statistical properties are investigated. The results show that the proposed 3-D model fits the prior results very well, which demonstrate that the model is practical to provide guidelines for the system design and performance analysis of V2V communication systems.