[1]于明鹭[],刘南杰[][],赵海涛[][]. 车载网中基于分段与协作的MAC协议[J].计算机技术与发展,2016,26(03):80-84.
 YU Ming-lu[],LIU Nan-jie[][],ZHAO Hai-tao[][]. Segmentation and Cooperation Based Media Access Control Protocol in VANETs[J].,2016,26(03):80-84.
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 车载网中基于分段与协作的MAC协议()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
26
期数:
2016年03期
页码:
80-84
栏目:
智能、算法、系统工程
出版日期:
2016-03-10

文章信息/Info

Title:
 Segmentation and Cooperation Based Media Access Control Protocol in VANETs
文章编号:
1673-629X(2016)03-0080-05
作者:
 于明鹭[1] 刘南杰[1][2] 赵海涛[1][2]
 1.南京邮电大学 通信与信息工程学院;2.南京邮电大学 网络基因工程研究所
Author(s):
 YU Ming-lu[1] LIU Nan-jie[1][2] ZHAO Hai-tao[1][2]
关键词:
 车载自组织网络协作安全消息介质访问控制协议
Keywords:
 VANETscooperationsafety messageMAC
分类号:
TP393
文献标志码:
A
摘要:
 车载自组织网络中采用的是基于竞争的MAC协议。该协议在车辆密度很大时会导致很高的包碰撞率,严重影响安全消息的传输可靠性和时延。针对该问题,提出车载自组织网络中基于分段与协作的MAC协议。首先创新性提出一种对道路进行分段的思想,再通过段首分配时隙给每辆车传输安全消息,最后通过选择辅助节点在空闲时隙重传紧急消息给接收失败的节点。该协议有助于提高安全消息的传输可靠性并降低消息传输时延。
Abstract:
 Vehicular Ad-hoc NETworks (VANETs) employs contention-based Medium Access Control (MAC). Under high-density situation,it leads to a great number of packet collision,and as a result,the reliability and latency of safety messages are severely affected. A segmentation and cooperation based MAC protocol in VANETs is proposed. It first introduces a road segmentation strategy,then the se-lected segment header is responsible to decide slots allocation which is used to transmit safety message by every car. Finally,helpers are selected to forward the packet to nodes that don’ t receive the packet in idle slots. The protocol can help to improve safety message’ s transmission reliability and reduce transmission delay.

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更新日期/Last Update: 2016-06-12