Application of New Companding Techniques on the DWT-Based SC-FDMA System

Amal Fawzy Abd El-Rahman (), Mustafa M. Abd Elnaby (), Salah Khamis (), Sameh Napoleon () and Fathi E. Abd El-Samie ()
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Amal Fawzy Abd El-Rahman: Tanta University
Mustafa M. Abd Elnaby: Tanta University
Salah Khamis: Tanta University
Sameh Napoleon: Tanta University
Fathi E. Abd El-Samie: Menoufia University

Annals of Data Science, 2022, vol. 9, issue 6, No 2, 1149-1159

Abstract: Abstract Orthogonal Frequency Division Multiplexing (OFDM) is the most popular multicarrier communication technique, but its disadvantage is the large Peak-to-Average Power Ratio (PAPR). In recent years, different researchers presented several techniques to avoid this problem such as companding techniques. Moreover, the Single-Carrier Frequency Division Multiple Access (SC-FDMA) system is a popular system in mobile communications because of its advantage of low PAPR, but reducing its PAPR is still an open research issue. So, an extension of the work applied on OFDM to SC-FDMA is adopted in this paper to reduce the PAPR, while achieving a low Bit Error Rate (BER). New companding schemes are adopted in this paper with the help of the Discrete Wavelet Transform (DWT) in the presence of channel degradations for lowering the PAPR of the SC-FDMA system, while achieving a low BER.

Keywords: SC-FDMA; Companding; PAPR reduction; DWT (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s40745-022-00413-9

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