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Bit-Based Fairness in IEEE802.11p MAC for Vehicle-to-Infrastructure Networks

  • Harigovindan V.P.
  • A. V. Babu
  • Lillykutty Jacob
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7135)

Abstract

In this paper, we investigate the unfairness problem that exists among vehicles of different velocities in IEEE 802.11p based Vehicle-to-Infrastructure (V2I) Networks. A vehicle moving with higher velocity has less chance to communicate with the Road Side Unit (RSU), as compared to the slow moving vehicle, due to its shorter residence time in the coverage area of RSU. Accordingly, the data transfer of a higher velocity vehicle gets degraded significantly, as compared to that of the vehicle with lower velocity, resulting in unfairness among them. In this paper, our aim is to address this unfairness problem that exists among vehicles of different velocities in V2I networks. Analytical expressions are derived for optimal minimum CW (CW min ) required to ensure fairness, in the sense of equal chance of communicating with RSU, among competing vehicles of different mean velocities in the network. Analytical results are validated using extensive simulations.

Keywords

IEEE 802.11p Fairness Residence Time Saturation Throughput Vehicle-to-Infrastructure 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Harigovindan V.P.
    • 1
  • A. V. Babu
    • 1
  • Lillykutty Jacob
    • 1
  1. 1.Department of Electronics and Communication EngineeringNational Institute of Technology CalicutIndia

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