Journal of Radio Electronics. eISSN 1684-1719. 2025. №7

Full text in Russian (pdf)

DOI: https://doi.org/10.30898/1684-1719.2025.7.10

Development of a method for reducing the PAPR
for orthogonal access methods based on the use
of shaping filters in hybrid communication networks

R.O. Salnikov, I.K. Meshkov, A.R.Gizatulin, A.KH. Sultanov,

A.L. Timofeev, A.G. Meshkova

Ufa University of Science and Technology
450008, Russia, Ufa Karl Marks str., 12, b. 6

The paper was received July 1, 2021.

Abstract. This paper presents a method for Peak-to-Average Power Ratio (PAPR) reduction in hybrid satellite communication networks utilizing orthogonal access methods and shaping filters. The proposed approach combines flexible guard intervals and shaping filtering techniques to optimize signal transmission in low-orbit satellite networks. Several filter types are investigated, including Raised Cosine (RC), Root Raised Cosine (RRC), Band-Tuned Raised Cosine (BTRC), and its optimized version (OBTRC). The method is evaluated using OFDM, OFDMA, and DFT-s-OFDM variants with zero-tail and unique word modifications. Simulation results demonstrate a PAPR reduction of 2-4 dB compared to conventional approaches, with DFT-s-OFDM-based technologies exhibiting superior performance even under challenging channel conditions with Doppler shift.

Key words: OFDM, DFT-s-OFDM, 5G, 6G, Zero-tail, Unique Word, low-orbit satellites, converged telecommunication systems, hybrid systems.

Financing: The research was carried out at the expense of the grant of the Russian Science Foundation No. 24-29-00080, https://rscf.ru/project/24-29-00080/.

Corresponding author: Salnikov Roman Olegovich, kosshak17@yandex.ru

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For citation:

Salnikov R.O., Meshkov I.K., Gizatulin A.R., Sultanov A.KH., Timofeev A.L., Meshkova A.G. Development and research of a method for frequency offset compensation based on the based on the use of unique words in 5G and 6G satellite communication systems. // Journal of Radio Electronics. – 2025. – № 7. https://doi.org/10.30898/1684-1719.2025.7.10 (In Russian)