基于NCTUns的IEEE 802.11p MAC协议性能仿真

doi:10.11772/j.issn.1001-9081.2014.04.0945

计算机应用 ›› 2014, Vol. 34 ›› Issue (4): 945-949.DOI: 10.11772/j.issn.1001-9081.2014.04.0945

基于NCTUns的IEEE 802.11p MAC协议性能仿真

陈思洋¹,朱西平¹,²,文红²

1. 成都信息工程学院网络工程学院,成都 610025;
2. 通信抗干扰技术国家级重点实验室(电子科技大学),成都 611731

收稿日期:2013-10-10 修回日期:2013-11-28 出版日期:2014-04-01 发布日期:2014-04-29
通讯作者: 陈思洋
作者简介:陈思洋(1987-),男,四川成都人,硕士研究生,主要研究方向:车载自组网、无线自组网;
朱西平(1971-),男,湖南慈利人,教授,博士,CCF会员,主要研究方向:无线自组网、信息安全;
文红(1969-),女,四川成都人,教授,博士,CCF会员,主要研究方向:无线网络与通信、信息安全。
基金资助:
国家自然科学基金资助项目;教育部新世纪优秀人才支持计划;四川省科技支撑计划项目;成都市科技计划项目

Performance evaluation of IEEE 802.11p MAC protocol based on NCTUns

CHEN Siyang¹,ZHU Xiping¹,²,WEN Hong²

1. College of Network Engineering, Chengdu University of Information Technology, Chengdu Sichuan 610225, China
2. National Key Laboratory of Science and Technology on Communications (University of Electronic Science and Technology of China), Chengdu Sichuan 611731, China

Received:2013-10-10 Revised:2013-11-28 Online:2014-04-01 Published:2014-04-29
Contact: CHEN Siyang
Supported by:
National Natural Science Foundation

摘要/Abstract

摘要：

IEEE 802.11p对于车载自组网(VANET)的应用与部署具有重要作用。针对以往研究仿真场景不全面，且极少采用完整的WAVE通信方式等不足，在深入阐述IEEE 802.11p协议层次和NCTUns架构及仿真流程的基础上，利用NCTUns平台在不同应用场景下构建出逼真道路环境，使用完整的WAVE模式分别研究了节点密度、传输功率、传输距离以及车速对于网络性能的影响。仿真结果表明：节点密度、传输功率与传输距离对于分组接收概率和吞吐量有显著影响，而车速对节点吞吐量没有影响。基于仿真结果最后提出了一种通过动态联动调整分组接收概率以及竞争窗口大小来提高车载自组网MAC层性能的方法。

Abstract:

The IEEE 802.11p standard plays an important role in the application and deployment of Vehicular Ad-hoc Network (VANET). Aiming at improving former literature' shortage including the incomplete use of simulation scenes and WAVE (Wireless Access in Vehicular Environments) communication mode, simulation based on NCTUns (National Chiao Tung University network simulation) was conducted to study the effect of transmission power, transmission distance, vehicle density and vehicle velocity on network performance after illustrating the architectures of IEEE 802.11p, NCTUns and the simulation process. The simulation results indicate that node density, transmission power and transmission distance can remarkably influence the packets reception rate and throughput while vehicle velocity has no effect on the node throughput. Finally a method of joint adjustment of packets reception rate and contention window was proposed to enhance the MAC (Media Access Control) performance of the VANET.

中图分类号:

TP393.01

陈思洋朱西平文红. 基于NCTUns的IEEE 802.11p MAC协议性能仿真[J]. 计算机应用, 2014, 34(4): 945-949.

CHEN Siyang ZHU Xiping WEN Hong. Performance evaluation of IEEE 802.11p MAC protocol based on NCTUns[J]. Journal of Computer Applications, 2014, 34(4): 945-949.

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基于NCTUns的IEEE 802.11p MAC协议性能仿真

Performance evaluation of IEEE 802.11p MAC protocol based on NCTUns

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