A Novel MIMO-OFDM Based MAC Protocol for VANETs

Vehicular ad hoc networks (VANETs) have recently become more significant to intelligent transport systems (ITS). Recent works focused on improving throughput and decreasing delay. In this paper, a novel MIMO-OFDM based MAC Protocol is proposed for VANETs to enhance their performance. Multiple-input...

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Bibliographic Details
Published in:IEEE transactions on intelligent transportation systems 2022-11, Vol.23 (11), p.20255-20267
Main Authors: Karabulut, Muhammet Ali, Shah, A. F. M. Shahen, Ilhan, Haci
Format: Article
Language:English
Subjects:
Bit error rate
Channel fading
Fading channels
IEEE 80211
Intelligent transportation systems
MAC
Markov chains
Media Access Protocol
MIMO communication
MIMO-OFDM
Mobile ad hoc networks
non-saturated condition
OFDM
Orthogonal Frequency Division Multiplexing
Receivers
Three dimensional models
Transmitters
VANETs
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Summary:Vehicular ad hoc networks (VANETs) have recently become more significant to intelligent transport systems (ITS). Recent works focused on improving throughput and decreasing delay. In this paper, a novel MIMO-OFDM based MAC Protocol is proposed for VANETs to enhance their performance. Multiple-input multiple-output (MIMO) and orthogonal frequency division multiplexing (OFDM) are integrated to exploit the benefit of both MIMO and OFDM. To accord MIMO with OFDM, a novel access mechanism is proposed. 3D Markov chain model-based analytical study is presented, considered a non-saturated condition. Nakagami-m fading channels are taken into account in the study. Parameters affecting performance are taken into consideration, and relationships are derived. The probability of successful transmission, probability of outage, bit error rate (BER), throughput, and delay expressions are achieved. Moreover, numerical results are presented, which verify analytical studies.
ISSN:1524-9050
1558-0016
DOI:10.1109/TITS.2022.3180697