ACARS: adaptive context - aware rate selection for DSRC in vehicular networks

Kenneth S. Nwizege, Jianhua He

Research output: Contribution to journalArticlepeer-review


Throughput plays a vital role for data transfer in Vehicular Networks which is useful for both safety and non-safety applications. An algorithm that adapts to mobile environment by using Context information has been proposed in this paper. Since one of the problems of existing rate adaptation algorithm is underutilization of link capacity in Vehicular environments, we have demonstrated that in wireless and mobile environments, vehicles can adapt to high mobility link condition and still perform better due to regular vehicles that will be out of communication range due to range checking and then de-congest the network thereby making the system perform better since fewer vehicles will contend for network resources. In this paper, we have design, implement and analyze ACARS, a more robust algorithm with significant increase in throughput performance and energy efficiency in the mist of high mobility of vehicles.

Original languageEnglish
Pages (from-to)13-23
Number of pages11
JournalInternational Journal of Simulation: Systems, Science and Technology
Issue number6
Publication statusPublished - Dec 2012


  • algorithms
  • context information
  • data transfer
  • DSRC
  • IEEE802.11p
  • mobility
  • protocol
  • rate adaptation
  • vehicular communication


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