We investigate the effect of channel aging on multi-cell massive multiple-input multiple-output (MIMO) vehicular networks in a generic non-isotropic scattering environment. Based on the single cluster scattering assumption and the von Mises distribution assumptions of the scatterers' angles, an aging channel model is established to capture the joint effect of spatial and temporal correlations resulting from different angular spread conditions in various application scenarios. Expressions of the user uplink transmission spectral efficiency (SE) are derived for maximum ratio (MR) and minimum mean square error (MMSE) combining. Through numerical studies, the area spectral efficiency (ASE) performance of the network is evaluated in freeway and urban Manhattan road grid scenarios, and easy-to-use empirical models for the optimal transmission block size for ASE maximization are obtained for the evaluated scenarios.

翻译：根据单一集散假设和散射器角度的冯米斯分布假设,建立了一个老化的信道模型,以捕捉各种应用情景中不同角分布条件产生的空间和时间相关性的共同影响。用户上链传输光谱效率的表达方式为最大比率(MR)和最小平均平方差(MMSE)结合而推导。通过数字研究,在高速公路和城市曼哈顿公路网假设中评估网络的区域光谱效率(ASE)性能,并为评估情景获得关于最佳传输区块尺寸优化最大最大化的易于使用的经验模型。