Adaptive message rate control of infrastructured DSRC vehicle networks for coexisting road safety and non-safety applications

Wenyang Guan, Jianhua He, Chao Ma (Lead / Corresponding author), Zuoyin Tang, Yue Li

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Abstract

Intelligent transport system (ITS) has large potentials on road safety applications as well as nonsafety applications. One of the big challenges for ITS is on the reliable and cost-effective vehicle communications due to the large quantity of vehicles, high mobility, and bursty traffic from the safety and non-safety applications. In this paper, we investigate the use of dedicated short-range communications (DSRC) for coexisting safety and non-safety applications over infrastructured vehicle networks. The main objective of this work is to improve the scalability of communications for vehicles networks, ensure QoS for safety applications, and leave as much as possible bandwidth for non-safety applications. A two-level adaptive control scheme is proposed to find appropriate message rate and control channel interval for safety applications. Simulation results demonstrated that this adaptive method outperforms the fixed control method under varying number of vehicles.
Original languageEnglish
Article number134238
Number of pages8
JournalInternational Journal of Distributed Sensor Networks
Volume2012
DOIs
Publication statusPublished - Aug 2012

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