SPIVC: Smart-Phone-Based Intervehicle Communication System

Inter-vehicle communications (IVC) could potentially improve safety, mobility, and fuel efficiency of a transportation system. However, traditional decentralized approaches based on Dedicated Short Range Communications could take a long time to reach a meaningful market penetration rate. In this study, the authors attempt to take advantage of ubiquitous smartphones and develop an IVC system based on smartphones, called SPIVC. In this system, smartphones on vehicles communicate with a central server and share traffic information with each other. Field tests are carried out on both WiFi and 3G networks to determine the accuracy of GPS devices and communication delays between vehicles. A communication model is developed to explain communication delays. It is found that location errors are about 4 meters after warm-up, and communication delays are in the order of seconds and depend on the frequency of location updates in GPS devices. The SPIVC system, which can be centralized or decentralized, holds great promises for an array of multimodal transportation applications that are not very sensitive to GPS accuracy and communication delay.

  • Supplemental Notes:
    • This paper was sponsored by TRB committee ABJ30 Urban Transportation Data and Information Systems
  • Corporate Authors:

    Transportation Research Board

    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Authors:
    • Jin, Wen-Long
    • Kwan, Candy
    • Sun, Zhe
    • Yang, Hao
    • Gan, Qijian
  • Conference:
  • Date: 2012

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 12p
  • Monograph Title: TRB 91st Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01371111
  • Record Type: Publication
  • Report/Paper Numbers: 12-4538
  • Files: TRIS, TRB
  • Created Date: Feb 8 2012 5:25PM