Performance Analysis of a MAC Protocol Consisting of EDCA on the CCH and a Reservation on the SCHs for the IEEE 802.11p/1609.4 WAVE

Yoora Kim, Yun Han Bae, Doo-Seop Eom, Bong Dae Choi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We propose an analytical model for the medium access control (MAC) protocol that consists of an enhanced distributed channel access (EDCA) on the control channel (CCH) and a reservation method on the service channels (SCHs) for the IEEE 802.11p/1609.4 wireless access in vehicular environments of intelligent transportation systems. Specifically, a safety packet of a high priority and a request for service (RFS) of a low priority for the SCH reservation are serviced on the CCH with a contention-based EDCA mechanism; meanwhile, nonsafety applications such as map download and commercial advertisements are serviced on an SCH with a contention-free scheme through the reservation of an SCH from the handshaking of an RFS packet on the CCH. To satisfy the safety packet quality-of-service (QoS) requirements regarding a within-100-ms delay and a successful delivery probability higher than 98%, we assume that each on-board unit of a vehicle is equipped with two transceivers, one of which always stays tuned on the CCH, while the other is tuned on the assigned SCH; furthermore, a roadside unit sends an acknowledgment message to the broadcasted safety packets to guarantee a high successful delivery probability. By constructing multidimensional Markov chains for the proposed MAC, we derive the intended successful delivery probability and the delay distribution of both the safety packet and the RFS packet. Numerical results show that the QoS requirements for the safety packet are satisfied, i.e., safety packets can be delivered within 100 ms with a successful delivery probability above 98%, even when the number of vehicles reaches up to 150. We compare the results of our proposed contention-free access scheme in the SCH selected by reservation with those of a contention-based access scheme in the SCH selected by randomness.

Original languageEnglish
Article number7707404
Pages (from-to)5160-5175
Number of pages16
JournalIEEE Transactions on Vehicular Technology
Volume66
Issue number6
DOIs
Publication statusPublished - 2017 Jun 1

Fingerprint

Medium Access Control
Medium access control
Reservation
Performance Analysis
Safety
Contention
Quality of service
Roadsides
Quality of Service
Transceivers
Markov processes
Analytical models
Intelligent Transportation Systems
Unit
Requirements
Randomness
Analytical Model
Markov chain
Numerical Results

Keywords

  • Enhanced distributed channel access (EDCA)
  • IEEE 802.11p/1609.4
  • performance analysis
  • wireless access in vehicular environments (WAVE)

ASJC Scopus subject areas

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

Cite this

Performance Analysis of a MAC Protocol Consisting of EDCA on the CCH and a Reservation on the SCHs for the IEEE 802.11p/1609.4 WAVE. / Kim, Yoora; Bae, Yun Han; Eom, Doo-Seop; Choi, Bong Dae.

In: IEEE Transactions on Vehicular Technology, Vol. 66, No. 6, 7707404, 01.06.2017, p. 5160-5175.

Research output: Contribution to journalArticle

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