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ISSN:
1796-2021 (Online); 2374-4367 (Print)
Abbreviated Title:
J. Commun.
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Monthly
DOI:
10.12720/jcm
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Editor-in-Chief
Prof. Maode Ma
College of Engineering, Qatar University, Doha, Qatar
I'm very happy and honored to take on the position of editor-in-chief of JCM, which is a high-quality journal with potential and I'll try my every effort to bring JCM to a next level...
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2023
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Volume 18, No. 9, September 2023
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JCM 2023 Vol.18(9): 555-570
Doi: 10.12720/jcm.18.9.555-570
Cubic Metric Reduction by Hybrid Companding-Universal Filtered Multi-carrier in 5G Networks
Farooq Sijal Shawqi
1, *
, Lukman Audah
1
, Sameer Alani
2
, Ahmed Talaat Hammoodi
3
, and Mohammed Ahmed Jubair
4
1.Faculty of Electrical and Electronic Engineering, Universiti Tun HusseinOnn Malaysia 86400 Parit Raja, BatuPahat, Johor, Malaysia; Email: hanif@uthm.edu.my (L.A.)
2.Computer Center, University of Anbar, Iraq; Email: sameer.h@uoanbar.edu.iq (S.A.)
3.Head of the Control Systems and Communications Department AlAnbar University, Iraq; Email: ahmed.talaat@uoanbar.edu.iq (A.T.H.)
4. College of Information Technology, Imam Ja'afar Al-Sadiq University, Al-Muthanna 66002, Iraq.
*Correspondence: farooquthm@gmail.com (F.S.S.)
Manuscript received April 27, 2023; revised June 5, 2023, accepted June 9, 2023.
Abstract
—There are several different waveforms used by the latest generation of wireless communication technologies. The Universal Filtered Multicarrier (UFMC) was selected because of its compatibility with a wide variety of numerology systems and its symmetrical nature. However, the high peak-to-average power ratio (PAPR) is a significant challenge for UFMC designs. While the Power-Averaged Perceived Roughness (PAPR) metric pinpoints the signal's highest point, the Cubic Metric (CM) pinpoints its out-of-band (OoB) and in-band (IB) distortion. Scrambling techniques like Selection Mapping (SLM) increase BER efficiency, while A-law and -law companding has been advanced to cut down on out-of-band interference (OBI) and PAPR, respectively. For companding techniques that don't introduce any distortions to the signal but increase PAPR and system complexity, the composite approach is utilized. Through simulation in MATLAB, we find that the SLM-companding UFMC model provides superior CM performance. For high-order modulation (256QAM), the CCDF-CM was reduced to 52% relative to eight-phase rotation vectors, a significant improvement over the standard UFMC.
Keywords
—cubic metric reduction, 5G networks, universal filtered multicarrier
Cite: Farooq Sijal Shawqi, Lukman Audah, Sameer Alani, Ahmed Talaat Hammoodi, and Mohammed Ahmed Jubair, “Cubic Metric Reduction by Hybrid Companding-Universal Filtered Multi-carrier in 5G Networks," Journal of Communications vol. 18, no. 9, pp. 555-570, September 2023.
Copyright © 2023 by the authors. This is an open access article distributed under the Creative Commons Attribution License (
CC BY-NC-ND 4.0
), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.
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