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DOI: 10.14569/IJACSA.2019.0100583
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Impact Study and Evaluation of Higher Modulation Schemes on Physical Layer of Upcoming Wireless Mobile Networks

Author 1: Heba Haboobi
Author 2: Mohammad R Kadhum

International Journal of Advanced Computer Science and Applications(IJACSA), Volume 10 Issue 5, 2019.

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Abstract: In this paper, the higher modulation formats (128 and 256) Quadrature Amplitude Modulation (QAM), for mod-ulation/demodulation the digital signal of the currently used Orthogonal Frequency Division Multiplexing (OFDM) system, is proposed, explored and evaluated at a wireless transmission system. The proposed modulation schemes are utilized to study the impact of adding extra bits for each transmitted sample on system performance in terms of the channel capacity, Bit Error Rate (BER) and Signal to Noise Ratio (SNR). As such, the key purpose of this research is to identify the advantages and disadvantages of using higher modulation schemes on the physical layer (PHY) of future mobile networks. In addition, the trade-off relation between the achieved bit rate and the required power of the receiver is examined in the presence of the Additive White Gaussian Noise (AWGN) and Rayleigh noise channels. Besides, the currently employed waveform (OFDM) is considered herein as an essential environment to test the effect of receiving additional complex numbers on the constellations table. Thus, investigate the ability to recognize both the phase and amplitude of intended constellations for the upcoming design of wireless transceivers. Moreover, a MATLAB simulation is employed to evaluate the proposed system mathematically and physically in an electrical back-to-back transmission system.

Keywords: Orthogonal Frequency Division Multiplexing (OFDM); Quadrature Amplitude Modulation (QAM); Bit Error Rate (BER); Signal to Noise Ratio (SNR); Bandwidth (BW); Additive White Gaussian Noise (AWGN); Rayleigh noise; physical layer (PHY)

Heba Haboobi and Mohammad R Kadhum, “Impact Study and Evaluation of Higher Modulation Schemes on Physical Layer of Upcoming Wireless Mobile Networks” International Journal of Advanced Computer Science and Applications(IJACSA), 10(5), 2019. http://dx.doi.org/10.14569/IJACSA.2019.0100583

@article{Haboobi2019,
title = {Impact Study and Evaluation of Higher Modulation Schemes on Physical Layer of Upcoming Wireless Mobile Networks},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2019.0100583},
url = {http://dx.doi.org/10.14569/IJACSA.2019.0100583},
year = {2019},
publisher = {The Science and Information Organization},
volume = {10},
number = {5},
author = {Heba Haboobi and Mohammad R Kadhum}
}



Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

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