QoS Guarantee with Adaptive Transmit Power and Message Rate Control for DSRC Vehicle Network Based Road Safety Applications
Quality of services (QoS) support is critical for dedicated short range communications (DSRC) vehicle networks based collaborative road safety applications. In this paper we propose an adaptive power and message rate control method for DSRC vehicle networks at road intersections. The design objective is to provide 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 an offline simulation based approach is used to find out the best possible configurations of transmit power and message rate for given numbers of vehicles in the network. The identified best configurations are then used online by roadside access points (AP) according to estimated number of vehicles. Simulation results show that this adaptive method significantly outperforms a fixed control method.
KeywordsMedium Access Control Access Point Distribute Coordination Function Safety Application Road Intersection
Unable to display preview. Download preview PDF.
- 1.Vehicle Safety Communications Project - FINAL REPORT. CAMP IVI Light Vehicle Enabling Research Program, DOT HS 810 591 (2006)Google Scholar
- 2.Zhu, J., Roy, S.: MAC for dedicated short range communications in intelligent transportation system. IEEE Commun. Mag. 41, 60–67 (2003)Google Scholar
- 4.Jiang, D., et al.: Design of 5.9 GHz DSRC-based vehicular safety communication. IEEE Wireless Commun., 36–43 (October 2006)Google Scholar
- 5.IEEE 802.11p, “Amendment for Wireless Access for the Vehicular Environment (WAVE)” (2010)Google Scholar
- 6.IEEE Std. 802.11e, Wireless LAN Medium Access Control (MAC) Enhancements for Quality of Service (QoS) (2005)Google Scholar
- 7.Yin, J., Elbatt, T., Habermas: Performance evaluation of safety applications over DSRC vehicular ad hoc networks. In: ACM VANET 2004 (2004)Google Scholar
- 8.He, J., Tang, Z., O’Farrell, T., Chen, T.: Performance analysis of DSRC priority mechanism for road safety applications in vehicular networks. In: Wireless Commun. and Mobile Comp. (August 2009)Google Scholar
- 10.IEEE Std 1609.4, ”IEEE Trial-Use Standard for Wireless Access in Vehicular Environments (WAVE) Multi-channel Operation” (2006)Google Scholar
- 11.Guan, W., He, J., Bai, L., Tang, Z.: Adaptive Congestion Control of DSRC Vehicle Networks for Collaborative Road Safety Applications. In: IEEE Workshop on Wireless Local Area Networks, WLN 2011 (2011)Google Scholar