Experimental analysis of broadcast reliability in dense vehicular networks

Kishore Ramachandran, Marco Gruteser, Ryokichi Onishi, Toshiro Hikita

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

12 Scopus citations


Dedicated Short Range Communications (DSRC)-based communications enable novel automotive safety applications such as an Extended Electronic Brake Light or Intersection Collision Avoidance. These applications require reliable wireless communications even in scenarios with very high vehicle density, where these networks are primarily interference-limited. Given the uncertainties associated with current simulation models, particularly their interference models, it is critical to experimentally validate network performance for such scenarios. Towards this goal, we present a systematic, large-scale experimental study of packet delivery rates in a dense environment of 802.11 transmitters. We show that even with 100 transmitters in communication range with a frame size of 128 bytes and a bit-rate of 6Mbps, (a) most receivers can decode over 1500 pps in a saturated network, which corresponds to a packet delivery rate of 45% and (b) the mean packet delivery rate, for 10 pps per node workload that emulates vehicular safety applications, is about 95%. These results demonstrate that a COTS 802.11 implementation can correctly decode many packets under collision due to physical layer capture and can serve as a reference scenario for validation of network simulators.

Original languageAmerican English
Title of host publication2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall
Number of pages5
StatePublished - 2007
Event2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall - Baltimore, MD, United States
Duration: Sep 30 2007Oct 3 2007

Publication series

NameIEEE Vehicular Technology Conference


Other2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall
Country/TerritoryUnited States
CityBaltimore, MD

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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