Age of Information, Latency, and Reliability in Intelligent Vehicular Networks

被引:21
作者
Guo, Chongtao [1 ]
Wang, Xijun [2 ]
Liang, Le [3 ]
Li, Geoffrey Ye [4 ]
机构
[1] Shenzhen Univ, Coll Elect & Informat Engn, Shenzhen 518060, Peoples R China
[2] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou 510006, Peoples R China
[3] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China
[4] Imperial Coll London, Dept Elect & Elect Engn, London SW7 2BT, England
来源
IEEE NETWORK | 2023年 / 37卷 / 06期
基金
中国国家自然科学基金;
关键词
COMMUNICATION;
D O I
10.1109/MNET.124.2200132
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Autonomous driving and intelligent transportation have posed stringent requirements on different performance metrics of vehicle-to-everything (V2X) communications depending on the wireless service being carried. Such coexisting heterogeneous performance requirements bring about increasing challenge in managing modern vehicular networks. In this article, we categorize wireless vehicular traffic into two kinds, namely, status update service and data communication service, where in safety-related applications the former is concerned with age of information (AoI) while the latter cares about latency and reliability in general. Afterwards, we uncover the relationship among AoI, latency, and reliability, and propose a novel graphical packet delivery model that is powerful for analyzing AoI performance. To unify the AoI, latency, and reliability management for different services, we further develop an intelligent resource allocation framework validated by a quantitative case study. Finally, we explore key challenges and opportunities to address the coexistence of status update and data communication services in intelligent vehicular networks.
引用
收藏
页码:109 / 116
页数:8
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