《计算机应用研究》|Application Research of Computers

VANET中基于捎带确认机制的自适应数据传播策略

Adaptive data propagation strategy in VANET based on piggybacked acknowledgement

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作者 赵金龙,张娓娓,陈绥阳
机构 1.西安思源学院 电子信息工程学院,西安 710038;2.西安交通大学 理学院,西安 710049
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文章编号 1001-3695(2019)06-054-1858-05
DOI 10.19734/j.issn.1001-3695.2017.12.0826
摘要 车载自组网(VANET)通过自组织分散环境传播交通数据,交通数据的特点使得VANET数据传播方法更适合依赖广播。然而,当在高密度场景下广播数据时,可扩展问题和数据传播冗余问题变得尤为突出,可能导致广播风暴的发生。针对数据传播冗余和广播开销等问题,以最远转发策略和捎带确认机制为基础,提出一种捎带确认的自适应最远转发策略(AckAMFR),根据存储转发的概念进行信息的传输和存储,降低了数据冗余,具有较强的可靠性和较小的广播开销。仿真结果表明,该转发策略具有低广播开销和高数据传输率的特性。
关键词 车载自组网; 捎带确认; 自适应; 数据冗余; 存储转发
基金项目 陕西省自然科学基金资助项目(17JK1073,14JK2084)
陕西省2017年度教育规划课题(SGH17H443)
本文URL http://www.arocmag.com/article/01-2019-06-054.html
英文标题 Adaptive data propagation strategy in VANET based on piggybacked acknowledgement
作者英文名 Zhao Jinlong, Zhang Weiwei, Chen Suiyang
机构英文名 1.College of Electronics & Information Engineering,Xi'an Siyuan University,Xi'an 710038,China;2.College of Science,Xi'an Jiaotong University,Xi'an 710049,China
英文摘要 Vehicular Ad hoc network(VANET) disseminates traffic data by providing self-organizing decentralized environments, the public interest of traffic data makes it appropriate for VANET data dissemination methods to rely on broadcasting. However, when data is broadcast under high density scenarios, the issues of scalability and data distribution redundancy which can lead to broadcast storm become even more pronounced. Aiming at the issues of data transmission redundancy and broadcast overhead, based on the farthest forwarding strategy and piggybacked acknowledgment mechanism, this paper proposed an adaptive most forward within radius based on piggybacked acknowledgement(AckAMFR), which transmitted and stored information according to the concept of store-and-forward. AckAMFR can reduce the data redundancy and it also has strong reliability and small broadcast costs. Simulation results show that the forwarding strategy has the characteristics of low broadcast overhead and high data rate.
英文关键词 VANET; piggybacked acknowledgement; adaptation; data redundancy; store and forward
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收稿日期 2017/12/13
修回日期 2018/3/1
页码 1858-1862,1872
中图分类号 TP393
文献标志码 A