Lowering the PAPR by using the PTS method for high-speed optical OTFS systems
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Arun Kumar
Abstract
Orthogonal time frequency selective (OTFS) is a two-dimensional modulation technique that encodes data in the delay-Doppler domain, offering robust communication in dynamic environments. However, the high peak-to-average power ratio (PAPR) in OTFS waveforms can degrade the performance of power amplifiers (PA) in the system. To address this, the proposed work introduces a partial transmission sequence (PTS) method to effectively reduce PAPR while preserving system throughput. The study evaluates the PTS technique’s performance in terms of key metrics, including bit error rate (BER) and power spectral density (PSD), using MATLAB 2016 for simulation. Results demonstrate that the proposed PTS method significantly outperforms traditional approaches, achieving a PAPR reduction of 1–3.8 dB and reducing power consumption by up to 30 %. These improvements highlight the potential of the PTS method for enhancing the efficiency and reliability of OTFS systems, making it a promising solution for high-performance wireless and optical communication networks. The findings underline the effectiveness of integrating PTS in OTFS to address PAPR challenges while ensuring minimal impact on system performance, paving the way for its application in next-generation communication technologies.
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Research ethics: Not Applicable.
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Informed consent: Not Applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: Not Applicable.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: Not Applicable.
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Data availability: Not Applicable.
References
1. Hadani, R, Rakib, S, Tsatsanis, M, Monk, A, Goldsmith, AJ, Molisch, AF, et al.. Orthogonal time frequency space modulation. In: IEEE, wireless communications and networks conference (WCNC), San Franciso, CA, USA; 2017:1–6 pp.10.1109/WCNC.2017.7925924Search in Google Scholar
2. Kumar, A, Sharma, H, Gaur, N, Nanthaamornphong, A. PAPR analysis in OTFS using the centre phase sequence matrix based PTS method. Res Opt 2024;15:100664. https://doi.org/10.1016/j.rio.2024.100664.Search in Google Scholar
3. Xu, C, Bai, T, Zhang, J, Rajashekar, R, Maunder, RG, Wang, Z, et al.. Adaptive coherent/non-coherent spatial modulation aided unmanned aircraft system. IEEE Wireless Commun 2019;26:170–7. https://doi.org/10.1109/mwc.2019.1800430.Search in Google Scholar
4. Kumar, A, Chakravarthy, S, Gaur, N, Nanthaamornphong, A. Hybrid approaches to PAPR, BER, and PSD optimization in 6G OTFS: implications for healthcare. J Commun Network 2024;26:308–20. https://doi.org/10.23919/JCN.2024.000027.Search in Google Scholar
5. Gao, S, Zheng, J. Peak-to-average power ratio reduction in pilot-embedded OTFS modulation through Iterative clipping and filtering. IEEE Commun Lett 2020;24:2055–9. https://doi.org/10.1109/lcomm.2020.2993036.Search in Google Scholar
6. Kumar, A, Gaur, N, Chakravarty, S, Nanthaamornphong, A. Reducing the PAPR of OTFS modulation using hybrid PAPR algorithms. Wireless Pers Commun 2023;133:2503–23. https://doi.org/10.1007/s11277-024-10885-y.Search in Google Scholar
7. Ali, DM, Yatiya, ZZ, Abbosh, YM. OTFS waveform effectiveness in 6G communication networks. Int J Micro Opt Technol 2023;18.Search in Google Scholar
8. Kumar, A, Gaur, N, Nanthaamornphong, A. Machine learning RNNs, SVM and NN algorithm for massive-MIMO-OTFS 6G waveform with Rician and Rayleigh channel. Egypt Inf J 2024;27:100531. https://doi.org/10.1016/j.eij.2024.100531.Search in Google Scholar
9. Han, SH, Lee, JH. An overview of peak-to-average power ratio reduction techniques for multicarrier transmission. IEEE Wireless Commun 2005;12:56–65. https://doi.org/10.1109/mwc.2005.1421929.Search in Google Scholar
10. Kumar, A. Analysis of PAPR on NOMA waveforms using hybrid algorithm. Wireless Pers Commun 2023;132:1849–61. https://doi.org/10.1007/s11277-023-10683-y.Search in Google Scholar
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