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Using EDCA to improve vehicle safety messaging

  • Sarah Sharafkandi
  • , Gaurav Bansal
  • , John B. Kenney
  • , David H Du

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

Abstract

The effectiveness of DSRC for collision avoidance depends on the communication performance of safety messages. EDCA, the standard IEEE 802.11 QoS capability, was designed for networks with a mix of voice, video and best effort traffic. This paper examines how to use EDCA to reduce frame collisions for a channel dominated by periodic safety messages. The paper makes two main contributions: Access Category (AC) Isolation and Virtual Division. AC Isolation eliminates inter-AC countdown collisions, dramatically improving the success rate for high priority packets. Virtual Division uses isolation in a novel way that also reduces collisions for lower priority packets. Both techniques are consistent with the 802.11 standard. The paper includes both detailed analysis and insightful NS-2 simulations.

Original languageEnglish (US)
Title of host publication2012 IEEE Vehicular Networking Conference, VNC 2012
Pages70-77
Number of pages8
DOIs
StatePublished - 2012
Event2012 IEEE Vehicular Networking Conference, VNC 2012 - Seoul, Korea, Republic of
Duration: Nov 14 2012Nov 16 2012

Publication series

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

Other

Other2012 IEEE Vehicular Networking Conference, VNC 2012
Country/TerritoryKorea, Republic of
CitySeoul
Period11/14/1211/16/12

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • CSMA/CA
  • DSRC
  • EDCA
  • NS-2
  • QoS

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