Recently, the concept of 5G vehicular smallcell networking (V-SCN) has been proposed to meet the growing demand of mobile data services in vehicular communications. However, it is a great challenge to explore spectrum and energy efficiency due to the fast vehicle mobility and varying communication environment. In this article, we focus on critical issues, such as interference management and handover, when employing 5G V-SCNs. In order to solve these issues, the network architecture embedded with NOMA is deigned. Furthermore, we propose a hierarchical power control solution to perform the joint optimization of cell association and power control to improve the spectrum and energy efficiency in NOMA-enabled 5G V-SCNs. Numerical comparison results provide some guidelines for developing NOMA-enabled 5G V-SCNs in an economical and highly energy-efficient manner.

中文翻译：

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非正交多址车载小型蜂窝网络：架构和解决方案


最近，为了满足车载通信中移动数据服务日益增长的需求，提出了5G车载小蜂窝网络（V-SCN）的概念。然而，由于快速的车辆移动性和变化的通信环境，探索频谱和能源效率是一个巨大的挑战。在本文中，我们重点关注采用 5G V-SCN 时的关键问题，例如干扰管理和切换。为了解决这些问题，设计了嵌入NOMA的网络架构。此外，我们提出了一种分层功率控制解决方案来执行小区关联和功率控制的联合优化，以提高支持 NOMA 的 5G V-SCN 的频谱和能源效率。数值比较结果为以经济且高能效的方式开发支持 NOMA 的 5G V-SCN 提供了一些指导。