3GPP NR V2X 模式2:概述,模型和系统级评估
Zoraze Ali1, Sandra Lagén1, Lorenza Giupponi1
1Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), 08860 Castelldefels, Spain.
IEEE access : practical innovations, open solutions
|July 18, 2023
概括
新的无线电 (NR) V2X增强了低延迟和高吞吐量的蜂车载通信. 本研究评估了NR V2X 模式 2 中基于传感的资源选择,显示出相对于随机选择策略的显著收益.
科学领域:
- 电信工程 电信工程 电信工程
- 无线通信系统无线通信系统
- 汽车技术 汽车技术
背景情况:
- 侧链技术已经从LTE (长期进化) 演变为近距离服务 (ProSe) 和蜂车辆到一切 (C-V2X).
- 第三代伙伴关系项目 (3GPP) 正在推进新无线电 (NR) V2X的侧链,以支持带有增强性能的先进驾驶用例.
研究的目的:
- 提供NR V2X技术的全面概述,重点关注外覆盖运行和自主资源选择的模式2.
- 为NR V2X提供一个系统级模拟器,扩展基于ns-3的5G-LENA模拟器.
- 评估NR V2X模式2中基于传感的资源选择的性能.
主要方法:
- 开发了一个基于ns-3 (5G-LENA) 的符合标准的NR V2X模拟器.
- 专注于在高速公路场景中为NR V2X Mode 2设计,实施和评估基于传感的资源选择.
- 进行了广泛的模拟,以分析各种NR V2X参数对资源选择的影响.
主要成果:
- 根据不同的NR V2X参数 (数字学,窗口大小,转发等) 评估基于传感的资源选择的性能. ) 的情况.
- 与随机选择相比,基于传感的资源选择 (3GPP 发布 16) 的性能增长已被证明 (3GPP 发布 17).
- 该研究强调了基于传感的NR V2X资源管理策略的有效性.
结论:
- NR V2X为车辆通信服务提供了显著的改进.
- 在NR V2X模式2中基于传感的资源选择与随机选择相比,提供了更高的性能.
- 开发的模拟器可以作为未来NR V2X研发的宝贵工具.
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