QoS Guarantee with Adaptive Transmit Power and Message Rate Control for DSRC Vehicle Network Based Road Safety Applications

  • Wenyang Guan
  • Jianhua He
  • Lin Bai
  • Zuoyin Tang
  • Yi Zhou
Part of the Communications in Computer and Information Science book series (CCIS, volume 264)


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.


Medium Access Control Access Point Distribute Coordination Function Safety Application Road Intersection 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Wenyang Guan
    • 1
  • Jianhua He
    • 2
  • Lin Bai
    • 3
  • Zuoyin Tang
    • 2
  • Yi Zhou
    • 1
  1. 1.College of EngineeringSwansea UniversityUK
  2. 2.School of Engineering and Applied ScienceAston UniversityUK
  3. 3.School of Electronic and Information EngineeringBeihang UniversityChina

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