A concurrent transmission enabled cooperative MAC protocol for Vehicular Ad Hoc Networks

ISCAS OpenIR

	A concurrent transmission enabled cooperative MAC protocol for Vehicular Ad Hoc Networks
	Zhang, Lifeng (1); Jin, Beihong (1); Cui, Yanling (1); Zhang, Lifeng
	2014
会议名称	22nd IEEE International Symposium of Quality of Service, IWQoS 2014
页码	258-267
会议日期	May 26, 2014 - May 27, 2014
会议地点	Hong Kong, Hong kong
收录类别	EI
出版地	Institute of Electrical and Electronics Engineers Inc.
ISSN	1548615X
ISBN	9781479948529
部门归属	(1) State Key Laboratory of Computer Science, Institute of Software, Chinese Academy of Sciences, China; (2) University of Chinese Academy of Sciences, China
摘要	In the infotainment applications over Vehicular Ad Hoc Networks(VANETs), the Roadside Units (RSUs) often play the roles of data switching centers. However, the RSUs tend to be the bottlenecks in the data dissemination because of the limited channel bandwidth and heavy traffic loads. In order to improve the throughput of the RSUs, we devise a new MAC protocol Mizar from a cross-layer design perspective. Mizar concentrates on improving the spatio-temporal efficiency in disseminating data from an RSU to the moving vehicles. Leveraging the space diversity of wireless signals, Mizar increases the channel utilization by the cooperative transmission. Moreover, motivated by the location distribution characteristics of the vehicles, Mizar seeks to catch the concurrent transmission opportunities generated in the process of the cooperative communication. It is shown from the experimental results that Mizar can increase the throughput and decrease the transmission delay significantly in comparison with the fixed data rate scheme of IEEE 802.11p, the variable data rate scheme and the cooperative transmission scheme in Mizar.; In the infotainment applications over Vehicular Ad Hoc Networks(VANETs), the Roadside Units (RSUs) often play the roles of data switching centers. However, the RSUs tend to be the bottlenecks in the data dissemination because of the limited channel bandwidth and heavy traffic loads. In order to improve the throughput of the RSUs, we devise a new MAC protocol Mizar from a cross-layer design perspective. Mizar concentrates on improving the spatio-temporal efficiency in disseminating data from an RSU to the moving vehicles. Leveraging the space diversity of wireless signals, Mizar increases the channel utilization by the cooperative transmission. Moreover, motivated by the location distribution characteristics of the vehicles, Mizar seeks to catch the concurrent transmission opportunities generated in the process of the cooperative communication. It is shown from the experimental results that Mizar can increase the throughput and decrease the transmission delay significantly in comparison with the fixed data rate scheme of IEEE 802.11p, the variable data rate scheme and the cooperative transmission scheme in Mizar.
语种	英语
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/16615
专题	中国科学院软件研究所
通讯作者	Zhang, Lifeng
推荐引用方式 GB/T 7714	Zhang, Lifeng ,Jin, Beihong ,Cui, Yanling ,et al. A concurrent transmission enabled cooperative MAC protocol for Vehicular Ad Hoc Networks[C]. Institute of Electrical and Electronics Engineers Inc.,2014:258-267.