Indonesian Journal of Engineering and Technology (INAJET)
Vol. 6 No. 1 (2023): September 2023

COFDM System: Overview

Farhan, Mhnd (Unknown)

Article Info

Publish Date
30 Sep 2023

Abstract

This article compares the performance of two modulation techniques—quadrature phase shift keying (QPSK) and quadrature M-ARY AMPLITUDE MODULATION (M-QAM) with M=8, 16, 32, and 64 in a coded orthogonal frequency division multiplexing system. As an error correction code, convolutional technology is used. Vehicle channels with white gaussian noise (AWGN) additives are used for communication. According to simulation data, for QPSK and M-QAM, coded orthogonal frequency division multiplexing systems perform better than uncoded ones. In addition, the system performs better with QPSK than with M-QAM. In addition, when M rises, performance decreases. Keywords: COFDM, M-QAM, QPSK, AWGN

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Journal Info
Indonesian Journal of Engineering and Technology (INAJET)
Website

Abbrev

inajet

Publisher

Universitas Negeri Surabaya

Subject

Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Mechanical Engineering

Description

Indonesian Journal of Engineering and Technology (INAJET) is a scientific journal that publishes peer-reviewed research papers in the fields of Engineering and Technology, both theoretical, experimental, and application studies, including: Electrical Engineering, Mechanical Engineering, Informatics, ...