ArticleOpen Access

ENHANCING OTFS MODULATION FOR 6G THROUGH HYBRID PAPR REDUCTION TECHNIQUE FOR DIFFERENT SUB-CARRIERS

AZIZ NANTHAAMORNPHONG

https://orcid.org/0000-0002-1618-6001

College of Computing, Prince of Songkla University, Phuket, Thailand

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ARUN KUMAR

https://orcid.org/0000-0001-7640-8975

Department of Electronics and Communication Engineering, New Horizon College of Engineering, Bengaluru, India

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HAYAM ALAMRO

https://orcid.org/0000-0003-3157-8086

Department of Information Systems, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, P. O. Box 84428, Riyadh 11671, Saudi Arabia

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NUHA ALRUWAIS

https://orcid.org/0009-0009-0119-869X

Department of Computer Science and Engineering, College of Applied Studies and Community Services, King Saud University, P. O. Box 22459, Riyadh 11495, Saudi Arabia

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RANDA ALLAFI

https://orcid.org/0009-0000-8122-0942

Department of Computers and Information Technology, College of Sciences and Arts, Northern Border University, Arar, Saudi Arabia

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NADHEM NEMRI

https://orcid.org/0000-0003-1428-0309

Department of Information Systems, Applied College at Mahayil, King Khalid University, Abha, Saudi Arabia

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NISHANT GAUR

https://orcid.org/0000-0002-2819-1465

Department of Physics, JECRC University, Jaipur, India

E-mail Address: nishant.gaur@jecrcu.edu.in

Corresponding author.

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, and

MUTASIM AL SADIG

https://orcid.org/0000-0001-9180-5530

Department of Computer Science, College of Science, Majmaah University, Al Majmaah 11952, Saudi Arabia

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https://doi.org/10.1142/S0218348X25400146Cited by:0 (Source: Crossref)

This article is part of the issue:

Special Issue on Application of Brain-Like Computing to the Modeling and Simulation of Complex Systems — Part I
Leading Guest Editor: Shadi Mahmoud Faleh AlZu’bi, Guest Editors: Maysam Abbod and Ashraf Darwish

Abstract

Peak-to-average power ratio (PAPR) in orthogonal time frequency space (OTFS) is vital for optimizing signal efficiency, minimizing distortion, and enhancing the performance of a beyond fifth-generation (B5G) system. The paper focuses on lowering the PAPR while retaining the bit error rate (BER) and power spectral density (PSD) for 64 and 256 sub-carriers. The PAPR is minimized by using a fractal optimization process known as selective mapping (SLM) and partial transmission sequence (PTS) at the transmitting block of the OTFS framework. The combination of SLM and PTS reduces peak power by selectively modifying the phase of transmitted symbols. SLM generates multiple versions of the signal, while PTS allocates power to these versions optimally, collectively mitigating amplitude peaks and minimizing PAPR. According to the simulation results, the suggested SLM+PTS works better than the traditional SLM and PTS, achieving low spectrum leakage and PAPR improvements of 5.5 dB and 4.9dB as well as SNR gains of 2.4dB and 2.1dB. In the future, SLM+PTS may work on lowering PAPR by making computers faster, researching adaptive algorithms, and combining machine learning methods for real-time optimization in various communication settings. Complex modeling, including fractal-based SLM and PTS approaches, provides a detailed understanding of waveform behavior and interference patterns, enabling more accurate and effective hybrid PAPR reduction techniques. This combination enhances the ability to manage to mitigate non-linear distortion across various sub-carriers, crucial for the performance and efficiency of 6G OTFS modulation.

Keywords:

References

1. L. Gaudio, G. Colavolpe and G. Caire, Deterministic flow-chart interpretations, IEEE Trans. Wirel. Commun. 21(6) (2022) 4410–4423, https://doi.org/10.1109/TWC.2021.3129975. Crossref, Google Scholar
2. R. Mallaiah and V. V. Mani, A novel OTFS system based on DFrFT-OFDM, IEEE Wirel. Commun. Lett. 11(6) (2022) 1156–1160, https://doi.org/10.1109/LWC.2022.3159534. Crossref, Web of Science, Google Scholar
3. N. Iqbal and Y. Karaca, Complex fractional-order HIV diffusion model based on amplitude equations with Turing patterns and Turing instability, Fractals 29(5) (2021) 2140013, https://doi.org/10.1142/S0218348x21400132. Link, Web of Science, Google Scholar
4. A. Pfadler, P. Jung and S. Stanczak, Pulse-shaped OTFS for V2X short-frame communication with tuned one-tap equalization, in Proc. Int. ITG Workshop on Smart Antennas (Hamburg, Germany, 2020), pp. 1–6. Google Scholar
5. M. K. Ramachandran and A. Chockalingam, MIMO-OTFS in high-Doppler fading channels: Signal detection and channel estimation, in Proc. IEEE Global Communications Conf. (Abu Dhabi, United Arab Emirates, 2018), pp. 1–6. Google Scholar
6. M. Giordani and M. Zorzi, Non-terrestrial networks in the 6G era: Challenges and opportunities, IEEE Netw. 25(2) (2021) 244–251. Crossref, Google Scholar
7. G. D. Surabhi, R. M. Augustine and A. Chockalingam, Peak-to-average power ratio of OTFS modulation, IEEE Commun. Lett. 23(6) (2019) 999–1002, https://doi.org/10.1109/LCOMM.2019.2914042. Crossref, Web of Science, Google Scholar
8. A. Farhang, A. R. Reyhani, L. E. Doyle and B. Farhang-Boroujeny, Low complexity modem structure for OFDM-based orthogonal time frequency space modulation, IEEE Wirel. Commun. Lett. 7(3) (2018) 344–347. Crossref, Web of Science, Google Scholar
9. S. P. Yadav and S. C. Bera, PAPR reduction using clipping and filtering technique for nonlinear communication systems, in Int. Conf. on Computing, Communication & Automation (Greater Noida, India, 2015), pp. 1220–1225, https://doi.org/10.1109/CCAA.2015.7148590. Crossref, Google Scholar
10. S. Prasad and R. Jayabalan, PAPR reduction in OFDM systems using modified SLM with different phase sequences, Wirel. Pers. Commun. 110 (2020) 913–929, https://doi.org/10.1007/s11277-019-06763-7. Crossref, Web of Science, Google Scholar
11. Y. Xiao, Q.-S. Wen, X. Lei and S.-Q. Li, Improved PTS for PAPR reduction in OFDM systems, in Third Advanced Int. Conf. on Telecommunications (AICT’07) (Morne, Mauritius, 2007), pp. 37–37, https://doi.org/10.1109/AICT.2007.26. Crossref, Google Scholar
12. N. Dewangan, S. Chatterjee and M. Singh, PAPR reduction of SC-FDMA based on modified tone reservation method, in Computational Intelligence and Information Technology. CIIT 2011. Communications in Computer and Information Science, Vol. 250, eds. V. V. Das and N. Thankachan (Springer, Berlin, Heidelberg, 2011), pp. 117–121, https://doi.org/10.1007/978-3-642-25734-6_18. Crossref, Google Scholar
13. S. S. Das and R. Prasad, OTFS: Orthogonal Time Frequency Space Modulation A Waveform for 6G (River Publishers, 2021), pp. i–xxvi. Google Scholar
14. W. Yuan et al., New delay Doppler communication paradigm in 6G era: A survey of orthogonal time frequency space (OTFS), China Commun. 20(6) (2023) 1–25, https://doi.org/10.23919/JCC.fa.2022-0578.202306. Crossref, Web of Science, Google Scholar
15. S. Chakravarty and A. Kumar, PAPR reduction of GFDM signals using encoder-decoder neural network (Autoencoder), Natl. Acad. Sci. Lett. 46 (2023) 213–217, https://doi.org/10.1007/s40009-023-01230-1. Crossref, Web of Science, Google Scholar
16. A. Kumar and H. Rathore, Reduction of PAPR in FBMC system using different reduction techniques, J. Opt. Commun. 42(2) (2021) 303–309, https://doi.org/10.1515/joc-2018-0071. Crossref, Google Scholar
17. A. Kumar, PAPR reduction of FBMC using hybrid and k-hybrid techniques, Radioelectron. Commun. Syst. 62 (2019) 501–509, https://doi.org/10.3103/S0735272719100029. Crossref, Google Scholar
18. S. Kiambi, E. Mwangi and G. Kamucha, Reducing PAPR of OFDM signals using a tone reservation method based on l-norm minimization, J. Electr. Syst. Inf. Technol. 9 (2022) 12, https://doi.org/10.1186/s43067-022-00055-0. Crossref, Google Scholar
19. Y. Xu, J. Oh, Z. Sun and M. Lim, A novel method for PAPR reduction of the OFDM signal using nonlinear scaling and FM, Front. Inf. Technol. Electron. Eng. 20(11) (2019) 1587–1594. Crossref, Web of Science, Google Scholar
20. A. Kumar et al., Reducing PAPR with low complexity filtered NOMA using novel algorithm, Sustainability 14 (2022) 9631, https://doi.org/10.3390/su14159631. Crossref, Web of Science, Google Scholar
21. V. B. Kaba and R. R. Patil, A precoding based PAPR minimization schemes for NOMA in 5G network, SN Comput. Sci. 2 (2021) 262, https://doi.org/10.1007/s42979-021-00639-z. Crossref, Google Scholar
22. A. Kumar, A novel hybrid PAPR reduction technique for NOMA and FBMC system and its impact in power amplifiers, IETE J. Res. 68(3) (2022) 2005–2021, https://doi.org/10.1080/03772063.2019.1682692. Crossref, Web of Science, Google Scholar
23. A. Kumar, N. Gour, H. Sharma and R. Pareek, A hybrid technique for the PAPR reduction of NOMA waveform, Int. J. Commun. Syst. 36(4) (2023) 1–12, https://doi.org/10.1002/dac.5412. Crossref, Web of Science, Google Scholar
24. H. Shang et al., OTFS modulation and PAPR reduction for IoT-railways, China Commun. 20(1) (2023) 102–113, https://doi.org/10.23919/JCC.2023.01.009. Crossref, Web of Science, Google Scholar
25. M. N. Hossain et al., DFT-spread OTFS communication system with the reductions of PAPR and nonlinear degradation, Wirel. Pers. Commun. 115 (2020) 2211–2228, https://doi.org/10.1007/s11277-020-07678-4. Crossref, Web of Science, Google Scholar
26. H. Bitra, C. Anusha and N. C. Pradhan, Reduction of PAPR in OTFS signal using airy special function, J. Opt. Commun. (2023). https://doi.org/10.1515/joc-2023-0184. Crossref, Google Scholar
27. H. Bitra, P. Ponnusamy, S. Chintagunta and S. Pragadeshwaran, Nonlinear companding transforms for reducing the PAPR of OTFS signal, Phys. Commun. 53 (2022) 101729. Crossref, Google Scholar
28. C. Naveen and V. Sudha, Peak-to-average power ratio reduction in OTFS modulation using companding technique, in 2020 5th Int. Conf. on Devices, Circuits and Systems (ICDCS) (Coimbatore, India, 2020), pp. 140–143, https://doi.org/10.1109/ICDCS48716.2020.243567. Crossref, Google Scholar
29. S. Prasad and R. Jayabalan, PAPR reduction in OFDM using scaled particle swarm optimisation based partial transmit sequence technique, J. Eng. 2019(5) (2019) 3460–3468. Google Scholar
30. S. Hara, OFDM, in Wireless Communication Technologies: New Multimedia Systems, eds. N. Morinaga, R. Kohno and S. Sampei (Springer, Boston, MA, 2002), pp. 1–96, https://doi.org/10.1007/0-306-47326-7_4. Crossref, Google Scholar
31. A. Adarsh et al., Low-latency and high-reliability FBMC modulation scheme using optimized filter design for enabling NextG real-time smart healthcare applications, J. Supercomput. 79 (2023) 3643–3665, https://doi.org/10.1007/s11227-022-04799-4. Crossref, Web of Science, Google Scholar
32. S. Wang, S. Cao and R. Ruby, Optimal power allocation in NOMA-based two-path successive AF relay systems, J. Wirel. Commun. Netw. 2018 (2018) 273, https://doi.org/10.1186/s13638-018-1286-z. Crossref, Google Scholar
33. R. S. Yarrabothu, N. Kanchukommula and U. R. Nelakuditi, Design and analysis of universal-filtered multicarrier (UFMC) waveform for 5G cellular communications using Kaiser filter, in Soft Computing and Signal Processing. Advances in Intelligent Systems and Computing, Vol. 898, eds. J. Wang, G. Reddy, V. Prasad and V. Reddy (Springer, Singapore, 2019). https://doi.org/10.1007/978-981-13-3393-4_73. Crossref, Google Scholar
34. A. Eldemiry et al., Overview of the orthogonal time-frequency space for high mobility communication systems, in 2022 5th Int. Conf. on Communications, Signal Processing, and their Applications (ICCSPA) (Cairo, Egypt, 2022), pp. 1–6, https://doi.org/10.1109/ICCSPA55860.2022.10019038. Crossref, Google Scholar
35. Y. Hong, T. Thaj and E. Viterbo, Delay-Doppler Communications: Principles and Applications (Academic Press, 2022), ISBN 9780323850285. Google Scholar
36. Y. A. Jawhar et al., A review of partial transmit sequence for PAPR reduction in the OFDM systems, IEEE Access 7 (2019) 18021–18041, https://doi.org/10.1109/ACCESS.2019.2894527. Crossref, Web of Science, Google Scholar
37. S. H. Han and J. H. Lee, An overview of peak-to-average power ratio reduction techniques for multicarrier transmission, IEEE Wirel. Commun. 12 (2005) 56–65. Crossref, Web of Science, Google Scholar
38. L. Hao, D. Wang, Y. Tao, W. Cheng, J. Li and Z. Liu, The extended SLM combined autoencoder of the PAPR reduction scheme in DCO-OFDM systems, Appl. Sci. 9 (2019) 852, https://doi.org/10.3390/app9050852. Crossref, Google Scholar
39. K. Wang, New optical solitons for nonlinear fractional Schrödinger equation via different analytical approaches, Fractals 32(5) (2024) 2450077, https://doi.org/10.1142/S0218348X24500774. Link, Web of Science, Google Scholar
40. Z. Sabir, M. A. Z. Raja and D. Baleanu, Fractional Mayer neuro-swarm heuristic solver for multi-fractional order doubly singular model based on Lane–Emden equation, Fractals 29(5) (2021) 2140017, https://doi.org/10.1142/S0218348X2140017X. Link, Web of Science, Google Scholar
41. K. Singh, M. R. Bharti and S. Jamwal, A modified PAPR reduction scheme based on SLM and PTS techniques, in 2012 IEEE Int. Conf. on Signal Processing, Computing and Control (Solan, India, 2012), pp. 1–6, https://doi.org/10.1109/ISPCC.2012.6224364. Crossref, Google Scholar
42. J. Deng, J. Ma, K. Song and Z. Xie, Some fractals related to partial maximal digits in Lüroth expansion, Fractals 32(5) (2024) 2450078, https://doi.org/10.1142/S0218348X24500786. Link, Google Scholar
43. T. Hadj Ali and A. Hamza, Low-complexity PAPR reduction method based on the TLBO algorithm for an OFDM signal, Ann. Telecommun. 76 (2021) 19–26, https://doi.org/10.1007/s12243-020-00777-0. Crossref, Web of Science, Google Scholar
44. S. A. Fathy, M. Ibrahim, S. El-Agooz and H. El-Hennawy, Low-complexity SLM PAPR reduction approach for UFMC systems, IEEE Access 8 (2020) 68021–68029, https://doi.org/10.1109/ACCESS.2020.2982646. Crossref, Web of Science, Google Scholar
45. C. Hu, L. Wang and Z. Zhou, Low-complexity PTS schemes for PAPR reduction in OFDM systems, IET Commun. 14(18) (2020) 3261–3265. Crossref, Web of Science, Google Scholar

Vol. 32, No. 09n10

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Received 11 May 2024

Accepted 7 July 2024

Published: October 30, 2024

Information

This is an Open Access article in the “Special Issue on Application of Brain-like Computing to the Modeling and Simulation of Complex Systems — Part I”, edited by Shadi Mahmoud Faleh AlZu’bi (Al-Zaytoonah University of Jordan, Jordan), Maysam Abbod (Brunel University London, UK) & Ashraf Darwish (Helwan University, Cairo, Egypt), published by World Scientific Publishing Company. It is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 (CC BY-NC-ND) License, which permits use, distribution and reproduction, provided that the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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ENHANCING OTFS MODULATION FOR 6G THROUGH HYBRID PAPR REDUCTION TECHNIQUE FOR DIFFERENT SUB-CARRIERS

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