Adaptive congestion control of DSRC vehicle networks for collaborative road safety applications

Wenyang Guan, Jianhua He, Lin Bai, Zuoyin Tang

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

Abstract

Congestion control is critical for the provisioning of quality of services (QoS) over dedicated short range communications (DSRC) vehicle networks for road safety applications. In this paper we propose a congestion control method for DSRC vehicle networks at road intersection, with the aims of providing high availability and low latency channels for high priority emergency safety applications while maximizing channel utilization for low priority routine safety applications. In this method a offline simulation based approach is used to find out the best possible configurations of message rate and MAC layer backoff exponent (BE) for a given number of vehicles equipped with DSRC radios. The identified best configurations are then used online by an roadside access point (AP) for system operation. Simulation results demonstrated that this adaptive method significantly outperforms the fixed control method under varying number of vehicles. The impact of estimation error on the number of vehicles in the network on system level performance is also investigated.
Original languageEnglish
Title of host publication2011 IEEE 36th Conference on Local Computer Networks (LCN)
PublisherIEEE
Pages913-917
Number of pages5
ISBN (Print)978-1-61284-926-3
DOIs
Publication statusPublished - 1 Jan 2011
Event2011 IEEE 36th Conference on Local Computer Networks (LCN) - Bonn, Germany
Duration: 4 Oct 20117 Oct 2011

Publication series

NameConference on Local Computer Networks. Proceedings
PublisherIEEE
ISSN (Print)0742-1303

Conference

Conference2011 IEEE 36th Conference on Local Computer Networks (LCN)
CountryGermany
CityBonn
Period4/10/117/10/11

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  • Cite this

    Guan, W., He, J., Bai, L., & Tang, Z. (2011). Adaptive congestion control of DSRC vehicle networks for collaborative road safety applications. In 2011 IEEE 36th Conference on Local Computer Networks (LCN) (pp. 913-917). (Conference on Local Computer Networks. Proceedings). IEEE. https://doi.org/10.1109/LCN.2011.6115571