International Journal of Advances in Electrical Engineering
2025, Vol. 6, Issue 2, Part A
Review of transform techniques in optical OFDM systems in terms of PAPR reduction
Author(s): Ameen Salih Jasim
Abstract: This review paper offers a comprehensive analysis of various transformation techniques utilized in Optical Orthogonal Frequency Division Multiplexing (O-OFDM) systems, with a particular focus on their implementation in Optical Wireless Communication (OWC), especially in Visible Light Communication (VLC). We examine traditional OFDM methodologies, including Direct Current Biased Optical (DCO-OFDM) and Asymmetrically Clipped Optical (ACO-OFDM). We analyze the mathematical principles associated with these notions, focusing on the Discrete Fourier Transform (DFT), the Real Discrete Fourier Transform (RDFT), and other transforms, including the Walsh-Hadamard Transform (WHT) and the Discrete Hartley Transform (DHT), as well as their applications. We analyze critical concerns inside systems, including the Peak-to-Average Power Ratio (PAPR), and investigate alternate solutions such as selective mapping, partial transmit sequence, tone reserve, and pre-coding techniques. A thorough analysis of current research from 2019 to 2025 is undertaken, highlighting significant advancements, comparative evaluations, and the merits and drawbacks of each methodology. Ultimately, emerging concepts and trends for future research on O-OFDM systems are examined, focusing on computational complexity, power efficiency, spectrum efficiency, and signal integrity.
DOI: 10.22271/27084574.2025.v6.i2a.93
Pages: 13-21 | Views: 128 | Downloads: 43
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How to cite this article:
Ameen Salih Jasim. Review of transform techniques in optical OFDM systems in terms of PAPR reduction. Int J Adv Electr Eng 2025;6(2):13-21. DOI: 10.22271/27084574.2025.v6.i2a.93
