Open Access

ARTICLE

Novel Universal Windowing Multicarrier Waveform for 5G Systems

by Ahmed Hammoodi¹, Lukman Audah^1,*, Montadar Abas Taher², Mazin Abed Mohammed³, Mustafa S. Aljumaily⁴, Adeeb Salh¹, Shipun A. Hamzah¹

1 Wireless and Radio Science Centre, Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, Parit Raja, 86400, Malaysia
2 Department Communications Engineering, University of Diyala, Baqubah, 32001, Iraq
3 College of Computer Science and Information Technology, University of Anbar, Anbar, 31001, Iraq
4 Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, 37901, USA

* Corresponding Author: Lukman Audah. Email:

(This article belongs to the Special Issue: Advanced 5G Communication System for Transforming Health Care)

Computers, Materials & Continua 2021, 67(2), 1523-1536. https://doi.org/10.32604/cmc.2021.014041

Received 30 August 2020; Accepted 28 October 2020; Issue published 05 February 2021

Abstract

Fifth Generation (5G) systems aim to improve flexibility, coexistence and diverse service in several aspects to achieve the emerging applications requirements. Windowing and filtering of the traditional multicarrier waveforms are now considered common sense when designing more flexible waveforms. This paper proposed a Universal Windowing Multi-Carrier (UWMC) waveform design platform that is flexible, providing more easily coexists with different pulse shapes, and reduces the Out of Band Emissions (OOBE), which is generated by the traditional multicarrier methods that used in the previous generations of the mobile technology. The novel proposed approach is different from other approaches that have been proposed, and it is based on applying a novel modulation approach for the Quadrature-Amplitude Modulation (64-QAM) which is considered very popular in mobile technology. This new approach is done by employing flexible pulse shaping windowing, by assigning windows to various bands. This leads to decreased side-lobes, which are going to reduce OOBE and boost the spectral efficiency by assigning them to edge subscribers only. The new subband windowing (UWMC) will also maintain comprehensively the non-orthogonality by a variety of windowing and make sure to keep window time the same for all subbands. In addition, this paper shows that the new approach made the Bit Error Rate (BER) equal to the conventional Windowed-Orthogonal Frequency Division Multiplexing (W-OFDM). This platform achieved great improvement for some other Key Performance Indicators (KPI), such as the Peak to Average Power Ratio (PAPR) compared with the conventional (W-OFDM) and the conventional Universal Filtered Multicarrier (UFMC) approaches. In particular, the proposed windowing scheme outperforms previous designs in terms of the Power Spectral Density (PSD) by 58% and the (BER) by 1.5 dB and reduces the Complementary Cumulative Distribution Function Cubic Metric (CCDF-CM) by 24%.

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Citations