NDLI: Performance analysis of discrete wavelet transform for downlink non-orthogonal multiple access in 5G networks

Content Provider	IET Digital Library
Author	Ali, Usman Baig, Sobia Umer, Tariq Ding, Zhiguo
Abstract	Non-orthogonal multiple access (NOMA) has been considered a key technology to address the increasing traffic demands for fifth-generation (5G) cellular wireless communication networks and internet of things. The NOMA technique offers efficient bandwidth utilisation, low latency, and support for the massive connectivity of devices in 5G networks. In the conventional NOMA system, orthogonal frequency division multiplexing (OFDM) is used as a pulse-shaping technique that causes high peak to average power ratio (PAPR) due to the superposition of signals of multiple users after passing through inverse fast Fourier transform and spectral inefficiency due to the cyclic prefix insertion. Therefore, an alternate methodology using wavelet OFDM is proposed in this research work, as a pulse-shaping technique for NOMA-based communication systems to improve spectral efficiency and system capacity The main contribution of this study is the analysis of the bit error rate (BER) performance and the effect of carrier frequency offset on system performance of wavelet NOMA (W-NOMA) technique in 5G networks. The simulation results demonstrate that W-NOMA outperforms the conventional NOMA with reference to PAPR and BER.
Starting Page	1666
Ending Page	1674
Page Count	9
ISSN	17518628
Volume Number	14
e-ISSN	17518636
Issue Number	Issue 10, Jun (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/14/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.0851
Journal	IET Communications
Publisher Date	2020-03-17
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	5G Mobile Communication 5G Networks Bit Error Rate Performance Cellular Radio Conventional NOMA System Cyclic Prefix Insertion Discrete Wavelet Transform Downlink Nonorthogonal Multiple Access Efficient Bandwidth Utilisation Error Statistics Fast Fourier Transform Fifth-generation Cellular Wireless Communication Network High Peak to Average Power Ratio Integral Transforms Internet of Things Inverse Fast Fourier Transform Mobile Radio System Modulation And Coding Method Multi-access System Multiple Access Communication NOMA-based Communication System OFDM Modulation Orthogonal Frequency Division Multiplexing System Performance Analysis Pulse-shaping Technique Spectral Efficiency Spectral Inefficiency Statistics System Capacity System Performance Traffic Demands W-NOMA Wavelet NOMA Technique Wavelet OFDM
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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