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 language | English (US) |
|---|---|
| Title of host publication | 2012 IEEE Vehicular Networking Conference, VNC 2012 |
| Pages | 70-77 |
| Number of pages | 8 |
| DOIs | |
| State | Published - 2012 |
| Event | 2012 IEEE Vehicular Networking Conference, VNC 2012 - Seoul, Korea, Republic of Duration: Nov 14 2012 → Nov 16 2012 |
Publication series
| Name | IEEE Vehicular Networking Conference, VNC |
|---|---|
| ISSN (Print) | 2157-9857 |
| ISSN (Electronic) | 2157-9865 |
Other
| Other | 2012 IEEE Vehicular Networking Conference, VNC 2012 |
|---|---|
| Country/Territory | Korea, Republic of |
| City | Seoul |
| Period | 11/14/12 → 11/16/12 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- CSMA/CA
- DSRC
- EDCA
- NS-2
- QoS
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