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| A concurrent transmission enabled cooperative MAC protocol for Vehicular Ad Hoc Networks | |
| Zhang, Lifeng (1); Jin, Beihong (1); Cui, Yanling (1); Zhang, Lifeng | |
| 2014 | |
| Conference Name | 22nd IEEE International Symposium of Quality of Service, IWQoS 2014 |
| Pages | 258-267 |
| Conference Date | May 26, 2014 - May 27, 2014 |
| Conference Place | Hong Kong, Hong kong |
| Indexed Type | EI |
| Publish Place | Institute of Electrical and Electronics Engineers Inc. |
| ISSN | 1548615X |
| ISBN | 9781479948529 |
| Department | (1) State Key Laboratory of Computer Science, Institute of Software, Chinese Academy of Sciences, China; (2) University of Chinese Academy of Sciences, China |
| English Abstract | 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. |
| Language | 英语 |
| Content Type | 会议论文 |
| URI | http://ir.iscas.ac.cn/handle/311060/16615 |
| Collection | 中国科学院软件研究所 |
| Corresponding Author | Zhang, Lifeng |
| Recommended Citation 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. |
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