| 摘要: |
| 提出了一种可靠快速的信息分发（RRMD）协议，该协议采用面向发信者的方案，即由发信者选择下一跳转发者.考虑了车辆的分布特性、信道特征、链路可用性、信号冲突概率、传输时延和排队时延等因素对信息传输的影响，设计了一个端到端时延计算公式，并将其定义为优先级函数，用于下一跳节点的选择.理论分析和仿真结果证明了该协议的优越性. |
| 关键词: 信息分发协议 信号衰减和冲突 面向发信者方案 最小时延 |
| DOI：10.3969/J.ISSN.1000-5137.2019.01.013 |
| 分类号: |
| 基金项目:中国航天电子技术研究院空间电子工程中心基础科研计划"十三五"项目（JCKY2017203B082） |
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| Research on reliable and rapid message dissemination protocol in vehicular ad hoc networks |
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YAN Xiongshi1, LIU Jing1, WU Zhichao2
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1.School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2.Space Electronic Engineering Center, China Academy of Aerospace Electronics Technology, Beijing 100094, China
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| Abstract: |
| In this paper,a reliable and rapid message dissemination (RRMD) protocol was proposed.The improved protocol adopted a sender-oriented scheme in which a source dominated the selection of forwarders.The factors that might have an impact on the transmission of messages such as vehicle distribution characteristics,channel characteristics,link availability,signal collision probability,accessing delay and queuing delay were taken into account.Thus,an end-to-end delay calculation scheme was designed and used as a priority function to select the next forwarder.Theoretical analysis and simulation results demonstrated the superiority of the proposed protocol. |
| Key words: vehicular ad hoc networks (VANETs) signal attenuation and collision sender-oriented scheme minimum time delay |
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