Wireless Personal Communications

, Volume 104, Issue 1, pp 325–337 | Cite as

A Multi-channel Cooperative Demand-Aware Media Access Control Scheme in Vehicular Ad-Hoc Network

  • Haitao ZhaoEmail author
  • Mengkang Zhang
  • Kaiqiang Gao
  • Tianqi Mao
  • Hongbo Zhu


The application of VANET can be divided into two types: security and non-security. Non-secure applications are primarily used to provide entertainment information. Secure applications will provide information to the driver in advance. Therefore, the delay and reliability of communication are strictly required for secure applications. In this paper, we propose a kind of demand-aware medium access control protocol based on multichannel cooperation in vehicular ad hoc networks. First, the scheme uses RSU (the roadside unit) to broadcast the secure query packets, and the node sends the emergency information of the vehicle node through the advance reservation control slot. Then, time slot will be divided dynamically according to the demand of the secure data, and each node will be coordinated by RSU to reduce the collision probability and safe data packet delay. The simulation results show that the proposed medium access control scheme can improve the network throughout and reduce the end-to-end transmission delay compared with the traditional 802.11p protocol.


Vehicular ad-hoc network Coordinated multi-channel Demand-aware MAC protocol 



This work was supported by National Natural Science Foundation of China (61771252, 61471203), Basic Research Program of Jiangsu Province (BK20171444), “The Six talents High Peaks” Funding Project of Jiangsu Province (DZXX-041), Major Nature Science Foundation of Jiangsu Universities (18KJA51005), Young Talents Support Project of Jiangsu Scientific and Technological Association, The object of Jiangsu Province 5th “333 Project”, The Practice Innovation  Program for College Graduates of Jiangsu Province (JSCX17_0224), “1311” Talents Funding Project of Nanjing University of Posts and Telecommunications.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.College of Telecommunications and Information EngineeringNanjing University of Posts and TelecommunicationsNanjingChina

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