车载自组织网络的媒体接入控制协议综述

Review of MAC Protocols for Vehicular Ad Hoc Networks.

作者信息

Ma Mengyuan, Liu Kai, Luo Xiling, Zhang Tao, Liu Feng

机构信息

School of Electronics and Information Engineering, Beihang University, Beijing 100191, China.

Hangzhou Innovation Institute, Beihang University, Hangzhou 310051, China.

出版信息

Sensors (Basel). 2020 Nov 24;20(23):6709. doi: 10.3390/s20236709.

DOI:10.3390/s20236709

PMID:33255310

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7727719/

Abstract

Vehicular ad hoc networks (VANETs) need to support the timely end-to-end transmissions of safety and non-safety messages. Medium access control (MAC) protocols can ensure fair and efficient sharing of channel resources among multiple vehicles for VANETs, which can provide timely packet transmissions and significantly improve road safety. In this paper, we review the standards of some countries for VANETs. Then, we divide the MAC protocols proposed for VANETs into single-channel MAC protocols and multi-channel MAC protocols according to the number of physical occupied spectrum resources. Both are further discussed based on their hierarchical structures, i.e., distributed and centralized structures. General design and optimization mechanisms of these commonly used MAC protocols for VANETs are reviewed. From the viewpoint of 7 aspects, we compare the advantages and disadvantages of these typical MAC protocols. Finally, we discuss the open issues to improve the MAC performance and future work on MAC design for VANETs.

摘要

车载自组织网络（VANETs）需要支持安全和非安全消息的及时端到端传输。介质访问控制（MAC）协议可以确保VANETs中多辆车之间公平有效地共享信道资源，从而实现数据包的及时传输并显著提高道路安全性。在本文中，我们回顾了一些国家针对VANETs的标准。然后，根据所占用物理频谱资源的数量，将针对VANETs提出的MAC协议分为单信道MAC协议和多信道MAC协议。基于它们的分层结构，即分布式和集中式结构，对这两种协议进行了进一步讨论。回顾了这些常用于VANETs的MAC协议的一般设计和优化机制。从7个方面比较了这些典型MAC协议的优缺点。最后，我们讨论了提高MAC性能的开放性问题以及VANETs MAC设计的未来工作。