车载自组网中基于车辆密度的多跳广播协议

TP393; 在车载自组网中,介质访问控制协议(MAC)的转发效率直接影响了数据消息的多跳广播传输性能.现有方法通常在每跳覆盖范围内选择最远节点来承担转发任务,通过降低转发次数实现快速多跳广播覆盖.然而,通过仿真实验和模型分析,当车辆密度变大时,现有方法导致信道竞争的接入延时剧增.因此,提出了一种基于IEEE802.11p协议的多跳广播协议VDF,根据车辆密度自适应地选择转发节点.事故预警和在线游戏2种典型应用仿真实验结果表明VDF降低了全网广播消息的覆盖延时,同时取得了信道冲突程度和多跳覆盖速度的合理折中....

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Published in通信学报 Vol. 37; no. 12; pp. 32 - 41
Main Authors 黄家玮, 钟少华, 刘联海, 王建新
Format Journal Article
LanguageChinese
Published 中南大学信息科学与工程学院,湖南长沙,410083 2016
Subjects
broadcast
IEEE 802.11p
广播
802.11p
VANET
无线车载自组织网络
介质访问控制协议
MAC
IEEE
Online AccessGet full text
ISSN1000-436X
DOI10.11959/j.issn.1000-436x.2016233

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Abstract TP393; 在车载自组网中,介质访问控制协议(MAC)的转发效率直接影响了数据消息的多跳广播传输性能.现有方法通常在每跳覆盖范围内选择最远节点来承担转发任务,通过降低转发次数实现快速多跳广播覆盖.然而,通过仿真实验和模型分析,当车辆密度变大时,现有方法导致信道竞争的接入延时剧增.因此,提出了一种基于IEEE802.11p协议的多跳广播协议VDF,根据车辆密度自适应地选择转发节点.事故预警和在线游戏2种典型应用仿真实验结果表明VDF降低了全网广播消息的覆盖延时,同时取得了信道冲突程度和多跳覆盖速度的合理折中.
AbstractList TP393; 在车载自组网中,介质访问控制协议(MAC)的转发效率直接影响了数据消息的多跳广播传输性能.现有方法通常在每跳覆盖范围内选择最远节点来承担转发任务,通过降低转发次数实现快速多跳广播覆盖.然而,通过仿真实验和模型分析,当车辆密度变大时,现有方法导致信道竞争的接入延时剧增.因此,提出了一种基于IEEE802.11p协议的多跳广播协议VDF,根据车辆密度自适应地选择转发节点.事故预警和在线游戏2种典型应用仿真实验结果表明VDF降低了全网广播消息的覆盖延时,同时取得了信道冲突程度和多跳覆盖速度的合理折中.
Author 黄家玮
王建新
钟少华
刘联海
AuthorAffiliation 中南大学信息科学与工程学院,湖南长沙,410083
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HUANG Jia-wei
LIU Lian-hai
WANG Jian-xin
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Issue 12
Keywords broadcast
IEEE 802.11p
广播
802.11p
VANET
无线车载自组织网络
介质访问控制协议
MAC
IEEE
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Snippet TP393; 在车载自组网中,介质访问控制协议(MAC)的转发效率直接影响了数据消息的多跳广播传输性能.现有方法通常在每跳覆盖范围内选择最远节点来承担转发任务,通过降低转发次...
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Title 车载自组网中基于车辆密度的多跳广播协议
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