MATLAB Simulation of IEEE 802.11p Technology on High User’s Mobility

Authors

  • MOUNTACIRI ABDERRAHIM

DOI:

https://doi.org/10.48422/IMIST.PRSM/ajees-v7i2.26558

Keywords:

VANET, OFDM, 802.11p, Doppler Effect, power spectral density

Abstract

In this article proposed IEEE 802.11p Physical layer (PHY). A MATLAB simulation is
performed to analyze the baseband processing of the transceiver. Orthogonal Frequency Division
Multiplexing (OFDM) is applied in this project according to the IEEE 802.11p standard, which al-lows data transmission rates from 3 to 27 Mbps. Separate modulation schemes, bit phase shift modu-lation (BPSK), quadrate phase shift modulation (QPSK), and quadrature amplitude modulation
(QAM), are used for different data rates. These schemes are combined with time interleaving and a
convolutional error correction code. A guard interval is inserted at the start of the transmitted sym-bol to reduce the effect of intersymbol interference (ISI). This article studies the PHY physical layer
of the IEEE 802.11p vehicular communication standard. An IEEE.802.11p PHY model, with many
associated phenomena, is implemented in the V2V vehicle-to- vehicle, and the vehicle-to-vehicle ad
hoc network (VANET) provides convenient coordination between moving vehicles. A moving vehicle
could move at a very high speed, producing a Doppler effect that damages OFDM symbols and also
causes inter-carrier interference (ICI). This article has discussed VANET technology versus 802.11a
technology, as they have many differences when it comes to user mobility. The Doppler effect re-sulting from the mobility of the user with a high speed of 25 to 400 km / h has been studied as the
main parameter, the estimation of the channel based on the lms algorithm has been proposed in or-der to improve the performance of the physical physical chain

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Published

30-06-2021

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Section

Articles