GoT: Decreasing DCC Queuing for CAM Messages Articles uri icon

publication date

  • December 2020

start page

  • 2974

end page

  • 2978

issue

  • 12

volume

  • 24

International Standard Serial Number (ISSN)

  • 1089-7798

Electronic International Standard Serial Number (EISSN)

  • 1558-2558

abstract

  • Vehicular networks use Decentralized Congestion Control (DCC) mechanisms to operate effectively, but this mechanism may introduce queuing delays. Freshness of Cooperative Awareness Messages (CAMs) is critical for their usefulness. In this letter we explore how the presence of other types of traffic additional to CAMs, even with lower priorities, has an impact on the freshness of CAM messages due to DCC queuing. Finally, we propose Generate-on-Time (GoT), which is a simple mechanism that reduces DCC queuing delays for CAM messages without introducing any downside in other performance metrics.

keywords

  • cooperative awareness; end-to-end delay; etsi; intelligent transport systems (its); vehicular networks