A Back-off Technique for Packet Collision Avoidance In Vehicular Communication Systems

In intelligent transportation systems, information-processing services to provide the information to vehicles are considered. In this paper, the authors propose a collision avoidance control (CAC) algorithm by controlling the start point of channel competition between nodes. Every node has a common control counter whose function is to count down from the contention window (CW) size. This counter is synchronized between nodes in the service area. Any node that wants to transmit packets has to wait until the control counter value becomes zero. Then, nodes can start the competition for packet transmission. It can reduce the collision probability between existing and new nodes. Performance of the proposed algorithm is compared with distributed coordination function (DCF) mechanism. The proposed scheme can reduce the probability of packet collision up to 20 % and increase the throughput up to 20 % over DCF.

• Availability:
  • Find a library where document is available. Order URL: http://itswc.confex.com/itswc/WC2011/webprogram/start.html
• Supplemental Notes:
  • Abstract reprinted with permission from Intelligent Transportation Society of America.
• Corporate Authors:

  ITS America

  1100 17th Street, NW, 12th Floor
  Washington, DC  United States  20036
• Authors:
  • Woo, Rinara
  • Song, Jeong-Hun
  • Choi, Byung-Jae
  • Han, Dong Seog
• Conference:
  • 18th ITS World Congress
  • Location: Orlando Florida, United States
  • Date: 2011-10-16 to 2011-10-20
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 10p
• Monograph Title: 18th ITS World Congress, Orlando, 2011. Proceedings

Subject/Index Terms

• TRT Terms: Communications traffic; ITS program technologies; Packet switching; Performance; Reliability; Transmission techniques; Vehicle to infrastructure communications; Vehicle to vehicle communications
• Subject Areas: Data and Information Technology; Highways; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01449118
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 11 2012 9:59AM