Collision control of periodic safety messages with strict messaging frequency requirements

Yongtae Park, Hyogon Kim

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

For safety messages in a vehicular networking environment, strict messaging frequency requirements exist. For instance, six out of eight cooperative vehicular safety applications, as chosen by the National Highway Traffic Safety Administration and the Crash Avoidance Metrics Partnership, require a minimum of 10 Hz, whereas the precrash sensing application requires an even higher frequency of 50 Hz, for messages that convey the positions of vehicles. Currently, the collisions of periodic safety message broadcasts for the IEEE Wireless Access in Vehicular Environment (WAVE) system are left to the IEEE 802.11p medium access control (MAC) to resolve. With small contention window sizes stipulated in the 802.11p amendment, however, the MAC offers only limited relief to the collision problem, particularly toward the beginning of the control channel (CCH) interval. In this paper, we show that application-level control of the message transmission phase is desirable, when the frequency adaptation is not allowed due to the application requirement. We demonstrate through simulation and analysis that the proposed technique achieves up to 50% higher message reception probability compared with that relying only on the 802.11p MAC. The proposed method works in the safety applications themselves; therefore, the existing standards need not be modified.

Original languageEnglish
Article number6352935
Pages (from-to)843-852
Number of pages10
JournalIEEE Transactions on Vehicular Technology
Volume62
Issue number2
DOIs
Publication statusPublished - 2013 Feb 20

Fingerprint

Collision
Safety
Medium Access Control
Medium access control
Requirements
Level control
Crash
Contention
Networking
Broadcast
Resolve
Sensing
Traffic
Metric
Interval
Demonstrate
Simulation

Keywords

  • Basic safety message (BSM)
  • delivery probability
  • periodic broadcast
  • vehicle-to-vehicle communication
  • Wireless Access in Vehicular Environment (WAVE)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Aerospace Engineering
  • Automotive Engineering
  • Computer Networks and Communications
  • Applied Mathematics

Cite this

Collision control of periodic safety messages with strict messaging frequency requirements. / Park, Yongtae; Kim, Hyogon.

In: IEEE Transactions on Vehicular Technology, Vol. 62, No. 2, 6352935, 20.02.2013, p. 843-852.

Research output: Contribution to journalArticle

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