蜂窝车联网连通性研究综述与展望

doi:10.11896/jsjkx.211000164

摘要/Abstract

摘要： 作为未来自动驾驶汽车的核心技术之一,蜂窝车联网(Cellular-V2X,C-V2X)在快速普及应用的同时,还面临着一系列与网络连通性相关的发展痛点,如车辆移动性、网络覆盖、频谱资源等问题。C-V2X车路协同连通性直接反映了C-V2X网络联网车辆的整体性能,对于保证信息在C-V2X网络内实现远距离、自适应、低时延、高可靠传输具有重要意义。不同于传统的蜂窝移动通信网络,C-V2X联网车辆具有移动速度快、节点间链路持续时间短暂、无线通信环境可预测性强、移动模型受限于道路拓扑等特点,在高效利用频谱进行通信的同时,还具有自组织网络的无中心和自组织等诸多特性。首先简要介绍了C-V2X的优点与特点,包括C-V2X的进展与结构体系;然后介绍了C-V2X车联网中车路协同连通性的定义及相关发展约束,在此基础上对C-V2X网络连通性研究中基于交通场景、通信方式选择、路侧单元(Road Side Unit,RSU)位置部署、功率控制、模型驱动的研究方法进行了总结与分类;最后探讨了C-V2X的发展趋势,对其未来应用进行展望。

关键词: 蜂窝车联网, 连通性, 通信方式, 功率控制, 模型驱动

Abstract: As one of the core technologies of future autonomous vehicles,Cellular-V2X(C-V2X) faces a series of developing pain points related to network connectivity,such as mobility,coverage and spectrum,while rapidly popularizing its application.The connectivity of C-V2X based cooperative vehicle-infrastructure system directly reflects the overall performance of C-V2X network connected vehicles,which is of great significance to ensure information can achieve long-distance,adaptive,low latency and high reliable transmission.Different from the traditional cellular mobile communication network,C-V2X networking vehicles have the characteristics of high moving speed,short link duration between nodes,strong predictability of wireless communication environment,and mobility model limited by road topology.To make efficient use of spectrum for communication,C-V2X networking vehicles also have the characteristics of no center and self-organization of ad hoc network.Firstly,the advantages and characteristics of C-V2X are briefly introduced,including the progress and structure of C-V2X.On this basis,research on connectivity of C-V2X network are summarized and classified based on transportation scenarios,communication mode selection,road side unit(RSU) location deployment,power control and model driven.Finally,the development trends of connectivity for C-V2X are discussed and its future application is prospected.

Key words: Cellular-V2X, Connectivity, Communication mode, Power control, Model driven

中图分类号:

TP393

代亮, 吴益钵, 汪贵平. 蜂窝车联网连通性研究综述与展望[J]. 计算机科学, 2023, 50(1): 285-293. https://doi.org/10.11896/jsjkx.211000164

DAI Liang, WU Yibo, WANG Guiping. Review and Prospect of Connectivity Research on Cellular-V2X[J]. Computer Science, 2023, 50(1): 285-293. https://doi.org/10.11896/jsjkx.211000164

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