论文标题
衰老通道建模和传输块尺寸优化，用于非各向异性散射环境中的大型MIMO车辆网络
Aging Channel Modeling and Transmission Block Size Optimization for Massive MIMO Vehicular Networks in Non-Isotropic Scattering Environment
论文作者
论文摘要
我们研究了通道老化对通用非异型散射环境中多细胞大量多输入多输出（MIMO）车辆网络的影响。基于单个簇散射假设和散射角度的von mises分布假设，建立了老化的通道模型，以捕获各种应用场景中不同角度扩散条件引起的空间和时间相关性的关节效应。以最大比率（MR）和最小平方误差（MMSE）组合得出用户上行链路传输光谱效率（SE）的表达式。通过数值研究，在高速公路和曼哈顿公路电网场景中评估了网络的面积光谱效率（ASE）性能，以及用于评估的场景的最佳传输块大小的最佳传输块大小的易于使用的经验模型。
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.
