Paper
6 September 2024 Development of a method for reducing peak-to-average power ratio in hybrid OFDM communications based on Kronecker product
Author Affiliations +
Proceedings Volume 13168, Optical Technologies for Telecommunications 2023; 1316806 (2024) https://doi.org/10.1117/12.3026081
Event: Optical Technologies for Telecommunications 2023, 2023, Kazan, Russian Federation
Abstract
Orthogonal Frequency Division Multiplexing (OFDM) technology1 has found wide application in optical communication systems due to its efficient use of available bandwidth, absence of intersymbol interference, and mitigation of dispersion and nonlinearity effects in the optical channel. However, OFDM has several drawbacks, the key one is the problem of high peak-to-average power ratio (PAPR)2 . In optical transmission systems3 , this becomes particularly relevant as it leads to nonlinear distortions caused not only by power amplifiers but also by LED emitters, thereby reducing the efficiency of converting light into communication and significantly impacting the lifespan of the LED and laser diode. This paper describes a new PAPR reduction method based on the application of the Kronecker product in the transmitter and receiver matrices formation in asymmetrically-clipped optical OFDM. It is applied in the transmitter side by the Kronecker product of the IFFT matrix and the data matrix, and then in the receiver by the Kronecker product of the FFT matrix and the channel matrix. Creating these matrices can distribute the signal power across all subcarriers and maintain orthogonality, thereby contributing to reducing the peak-factor. Numerical experiments were conducted to evaluate the effectiveness of the method. Simulation results show that this approach can reduce the peak-factor value by 2.3%. Overall, the developed method based on the Kronecker product provides a promising solution for reducing PAPR in OFDM optical systems and can be used to improve the performance and efficiency of data transmission in optical communication systems, moreover, this signal undergoes further transformation - the formation of quasi-orthogonal multiplexing methods for transmission on the air network.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
E. E. Khantimerova, A. R. Gizatulin, R. O. Salnikov, I. K. Meshkov, A. R. Zagidullin, A. G. Meshkova, and A. Kh. Sultanov "Development of a method for reducing peak-to-average power ratio in hybrid OFDM communications based on Kronecker product", Proc. SPIE 13168, Optical Technologies for Telecommunications 2023, 1316806 (6 September 2024); https://doi.org/10.1117/12.3026081
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KEYWORDS
Orthogonal frequency division multiplexing

Matrices

Transmitters

Receivers

Data transmission

Telecommunications

Optical communications

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