5G-air-simulator is an open-source and event-driven tool modeling the key elements of the 5G air interface from a system-level perspective. It implements several network architectures with multiple cells and users, different mobility and application models, a calibrated link-to-system model for physical and data-link layers, and a wide range of features standardized for both control and user planes, as well as a set of technical components recently designed for the 5G air interface (such as massive Multiple Input Multiple Output, extended multicast and broadcast transmission schemes, predictor antennas, enhanced random access procedure, and NB-IoT). The tool has been already used in different research activities to design and evaluate the performance of reference 5G-enabled use cases. Moreover, it allows a flexible configuration, arrangement, and extension of its capabilities to model both new scenarios and new technical components, hence supporting advanced studies willing to address the research questions emerging from the deployment of current and upcoming mobile systems.

5G空气模拟器是一个开放源代码和事件驱动工具，从系统级角度对5G空中接口的关键要素进行建模。它实现了具有多个小区和用户的几种网络体系结构，不同的移动性和应用程序模型，针对物理层和数据链路层的经过校准的链路到系统模型以及针对控制平面和用户平面以及标准化的各种功能，以及一组最近为5G空中接口设计的技术组件（例如大规模多输入多输出，扩展的多播和广播传输方案，预测器天线，增强的随机接入程序和NB-IoT）。该工具已经在各种研究活动中用于设计和评估参考5G支持的用例的性能。而且，它允许灵活的配置，安排，