A MAC Protocol Using Road Traffic Estimation for Infrastructure-to-Vehicle Communications on Highways

The development of vehicular communication technology can make more intelligent transportation systems (ITSs) by enabling a large number of potential applications. In particular, infrastructure-to-vehicle (I2V) communication will support ITS applications and provide inexpensive high-rate Internet access as well. Thus, a study on I2V communications may improve the quality of experience of end users in vehicles, such as drivers and passengers. To this end, the authors propose a medium access control (MAC) protocol for I2V communications to improve the fairness of node throughput while maximizing the expected system throughput. They derive the way of estimating road traffic to precisely control the transmission probability of vehicles for maximizing system throughput. The estimation is performed by utilizing the spacing distribution model in transportation systems. Furthermore, the authors present a threshold to limit the number of transmitted packets for the fairness of the vehicles. The threshold is set based on the achievable node throughput and the estimated sojourn time. Through extensive simulations based on the empirical vehicular trajectory data, the improved performance of the proposed MAC protocol is demonstrated. The test results show that the expected system throughput is increased by more than 21.3% and that Jain's fairness index with regard to the number of transmitted packets among the nodes is close to 1.

• Record URL:
  • https://doi.org/10.1109/TITS.2013.2264356
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/41297384
• Supplemental Notes:
  • Abstract reprinted with permission of IEEE.
• Authors:
  • Kim, Kyunghwi
  • Lee, Jeongbeen
  • Lee, Wonjun
• Publication Date: 2013-9

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: pp 1500-1509
• Serial:
  • IEEE Transactions on Intelligent Transportation Systems
  • Volume: 14
  • Issue Number: 3
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • ISSN: 1524-9050
  • Serial URL: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6979

Subject/Index Terms

• TRT Terms: Access control (Communications); Computer network protocols; Traffic distribution; Traffic estimation; Traffic simulation; Vehicle to infrastructure communications; Vehicular ad hoc networks
• Subject Areas: Data and Information Technology; Highways; I71: Traffic Theory;

Filing Info

• Accession Number: 01524721
• Record Type: Publication
• Files: TLIB, TRIS
• Created Date: May 1 2014 4:36PM