8th International Conference on Communications and Networking in China

Research Article

Distributed Location-Assisted Multiple Access Scheme for Vehicular Ad Hoc Networks

  • @INPROCEEDINGS{10.1109/ChinaCom.2013.6694652,
        author={Huimin Wu and Rong Yu and Cong Liu and Hongbin Chen and Yue Lai},
        title={Distributed Location-Assisted Multiple Access Scheme for Vehicular Ad Hoc Networks},
        proceedings={8th International Conference on Communications and Networking in China},
        publisher={IEEE},
        proceedings_a={CHINACOM},
        year={2013},
        month={11},
        keywords={location-assisted medium access control(mac) vehicular ad hoc networks},
        doi={10.1109/ChinaCom.2013.6694652}
    }
    
  • Huimin Wu
    Rong Yu
    Cong Liu
    Hongbin Chen
    Yue Lai
    Year: 2013
    Distributed Location-Assisted Multiple Access Scheme for Vehicular Ad Hoc Networks
    CHINACOM
    IEEE
    DOI: 10.1109/ChinaCom.2013.6694652
Huimin Wu1, Rong Yu1,*, Cong Liu2, Hongbin Chen3, Yue Lai1
  • 1: Guangdong University of Technology
  • 2: Sun Yat-Sen University
  • 3: Guilin University of Electronic Technology
*Contact email: yurong@ieee.org

Abstract

This paper proposes a location-assisted random medium access control (MAC) scheme for distributed vehicular ad hoc networks (VANETs). Consider a vehicular network with a wireless bandwidth of M orthogonal channels that shared by multiple vehicles. Efficient distributed channel access mechanism should be used to improve the bandwidth utilization. We observe that each vehicle has a unique location, which could be exploited as a key information to identify its access channel. Motivated by this observation, we design a location-to-channel (L2C) randomized mapping approach. In the approach, each vehicle will access to the channels with optimal location-dependent probabilities. The simulation results are presented to demonstrate the performance of this MAC scheme by comparing it to the general random MAC scheme. It is shown that the average collision probability of channel access is clearly reduced and the average throughput of the channel is significantly enhanced.