Siberian Federal University

Issue

Journal of Siberian Federal University. Engineering & Technologies. 2023 16 (8)

Authors

Mhnd Farhan

Contact information

Mhnd Farhan: Baghdad University Baghdad, Iraq;

Keywords

COFDM; performance analysis; COFDM

Abstract

This article compares the performance of two modulation techniques – quadrature phase shift keying (QPSK) and M‑ary quadrature amplitude modulation (M-QAM) with M=8, 16, 32, and 64—in a coded orthogonal frequency division multiplexing system. As an error- correcting code, convolutional technology is employed. A vehicular channel with additive white gaussian noise (AWGN) is utilized for communication. According to simulation data, for QPSK and M-QAM, a coded orthogonal frequency division multiplexing system performs better than an uncoded one. Additionally, the system performs better with QPSK than it does with M-QAM. Additionally, when M rises, the performance declines

Pages

1026–1034

EDN

EASTLQ

Paper at repository of SibFU

https://elib.sfu-kras.ru/handle/2311/152332

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).