A QoS-Aware Congestion Control Scheme for C-V2X Safety Communications

Jihyun Choi, Hyogon Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)


In vehicle-to-vehicle (V2V) communication, vehicles must periodically broadcast their kinematics information to reduce the chances of collision. When the communication channel utilization becomes high, however, congestion control for the periodic broadcast traffic is inevitable. So far, all standard or proposed congestion control schemes for V2X safety communication have been quality of service (QoS)-blind. Which aspect of the QoS is compromised by a given congestion control scheme has been purely the artefact of the mechanism(s) employed by the scheme, detached from the needs of the safety application running at the time. This paper demonstrates the feasibility of congestion control that allows V2X safety applications to choose a QoS class that preferentially protects the QoS aspect that is more prized for their requirement. And yet, it shows that such congestion control scheme can be engineered to reduce the channel utilization in a uniform manner as before, regardless of the individual choices made by each V2X application.

Original languageEnglish
Title of host publication2020 IEEE Vehicular Networking Conference, VNC 2020
EditorsFrank Kargl, Onur Altintas, Ana Aguiar, Andre Weimerskirch, Takamasa Higuchi
PublisherIEEE Computer Society
ISBN (Electronic)9781728192215
Publication statusPublished - 2020 Dec 16
Event2020 IEEE Vehicular Networking Conference, VNC 2020 - Virtual, New York, United States
Duration: 2020 Dec 162020 Dec 18

Publication series

NameIEEE Vehicular Networking Conference, VNC
ISSN (Print)2157-9857
ISSN (Electronic)2157-9865


Conference2020 IEEE Vehicular Networking Conference, VNC 2020
Country/TerritoryUnited States
CityVirtual, New York

Bibliographical note

Funding Information:
ACKNOWLEDGEMENTS This work is supported by the Korea Agency for Infrastructure Technology Advancement(KAIA) grant funded by the Ministry of Land, Infrastructure and Transport (Grant 20CTAP-C151975-02).

Publisher Copyright:
© 2020 IEEE.


  • Cellular V2X (C-V2X) communication
  • congestion control
  • quality of service (QoS)

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Automotive Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Transportation


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