Evaluation of the Frequency Spectrums of an Orthogonal Frequency Division Multiplexing (OFDM) for Signaling Transmission

U.B. Neto¹ , Y. Iano² , D.K. Bonello³

Section:Research Paper, Product Type: Journal-Paper
Vol.8 , Issue.5 , pp.8-15, Oct-2020

Online published on Oct 31, 2020

Copyright © U.B. Neto, Y. Iano, D.K. Bonello . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The continuous increase in global data traffic, such as audio and video signals, has imposed many improvements for the quality of telecommunication systems, hence several solutions in digital signal processing systems have been proposed in the last decades. In this approach, is presented a review and frequency spectrum simulations of OFDM (Orthogonal Frequency Division Multiplexing) in the four different time domains (16s, 24s, 32s and 48s), respectively. It also simulated six OFM frequency spectrums in MATLAB. A (GUI) interface also shows basic signaling transmission, and performance of the developed algorithm has been examined in terms of frequency, which increases in function of the time domain bands. In general, the results obtained were about a maximum frequency of 3MHz in 50% of the time-domain extraction, and a minimum frequency of -3MHz in 75% of the time-domain extraction, thus the results obtained were satisfactory to show the feasibility of OFDM modulation in a MATLAB environment.

Key-Words / Index Term :
OFDM modulation; Frequency spectrum; Time-domain; MATLAB simulation; Communication systems

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