Peak to average power ratio reduction using companding algorithm for NOMA waveform

Arun Kumar; Nishant Gaur

doi:10.3103/S0735272723040039

Authors

Arun Kumar New Horizon College of Engineering, Bengaluru, India https://orcid.org/0000-0001-7640-8975
Nishant Gaur JECRC University, Jaipur, India https://orcid.org/0000-0002-2819-1465

DOI:

https://doi.org/10.3103/S0735272723040039

Keywords:

NOMA, : PAPR, Companding, BER

Abstract

Future wireless communication systems can accommodate huge connections and improve spectrum efficiency by using the approach based on non-orthogonal multiple access (NOMA). High peak-to-average power ratio (PAPR) levels can, however, negatively affect NOMA, resulting in decreased system performance and more complicated power amplifiers. This study suggests PAPR reduction in NOMA by utilizing companding methods for 512, 256, and 64 sub-carriers to address this problem. The high peak power of NOMA signals may be effectively compressed by using nonlinear companding techniques, such as μ-law and A-law companding, which reduces distortion and improves overall system dependability. Simulations are used to assess the effectiveness of the suggested companding methods, and the findings show a significant reduction in PAPR assuring an increased bit error rate (BER) effectiveness and transmission resilience in NOMA-based communication systems. The suggested method is contrasted with the conventional A-law (C-A-Law) and μ-law (C-μ-law).

References

A. Kumar, N. Gour, H. Sharma, R. Pareek, “A hybrid technique for the PAPR reduction of NOMA waveform,” Int. J. Commun. Syst., vol. 36, no. 4, 2023, doi: https://doi.org/10.1002/dac.5412.

P. Pandey, R. Tripathi, “Performance analysis of peak-to-average power ratio (PAPR) reduction techniques in an OFDM system,” in 2012 Third International Conference on Computer and Communication Technology, 2012, pp. 245–249, doi: https://doi.org/10.1109/ICCCT.2012.57.

A. Kumar et al., “Reducing PAPR with low complexity filtered NOMA using novel algorithm,” Sustainability, vol. 14, no. 15, p. 9631, 2022, doi: https://doi.org/10.3390/su14159631.

M. S. A. Khan, K. Rao, S. Amuru, K. Kuchi, “Low PAPR reference signal transceiver design for 3GPP 5G NR uplink,” EURASIP J. Wirel. Commun. Netw., vol. 2020, no. 1, p. 182, 2020, doi: https://doi.org/10.1186/s13638-020-01787-1.

A. Kumar, “PAPR reduction of FBMC using hybrid and k-hybrid techniques,” Radioelectron. Commun. Syst., vol. 62, no. 10, pp. 501–509, 2019, doi: https://doi.org/10.3103/S0735272719100029.

M.-J. Hao, C.-P. Liaw, “A companding technique for PAPR reduction of OFDM systems,” in 2006 International Symposium on Intelligent Signal Processing and Communications, 2006, pp. 634–637, doi: https://doi.org/10.1109/ISPACS.2006.364736.

Y. Li, W. Deng, “A novel piecewise nonlinear companding transform for PAPR reduction in GFDM,” in 2018 10th International Conference on Wireless Communications and Signal Processing (WCSP), 2018, pp. 1–5, doi: https://doi.org/10.1109/WCSP.2018.8555932.

M. Hu, Y. Li, W. Wang, H. Zhang, “A piecewise linear companding transform for PAPR reduction of OFDM signals with companding distortion mitigation,” IEEE Trans. Broadcast., vol. 60, no. 3, pp. 532–539, 2014, doi: https://doi.org/10.1109/TBC.2014.2339531.

A. Hasan, M. Zeeshan, M. A. Mumtaz, M. W. Khan, “PAPR reduction of FBMC-OQAM using A-law and Mu-law companding,” in 2018 ELEKTRO, 2018, pp. 1–4, doi: https://doi.org/10.1109/ELEKTRO.2018.8398246.

A. Kumar, M. Gupta, “A comprehensive study of PAPR reduction techniques: design of DSLM-CT joint reduction technique for advanced waveform,” Soft Comput., vol. 24, no. 16, pp. 11893–11907, 2020, doi: https://doi.org/10.1007/s00500-020-05086-1.

A. Kumar, H. Rathore, “Reduction of PAPR in FBMC system using different reduction techniques,” J. Opt. Commun., vol. 42, no. 2, pp. 303–309, 2021, doi: https://doi.org/10.1515/joc-2018-0071.

Z. T. Ibraheem, K. K. Ahmed, Y. Fazea, M. Madi, F. Mohammed, A. Q. Ali, “Boosted PTS method with Mu-law companding techniques for PAPR reduction in OFDM systems,” Wirel. Pers. Commun., vol. 124, no. 1, pp. 423–436, 2022, doi: https://doi.org/10.1007/s11277-021-09366-3.

E. Singh, M. Arif, “Novel companding technique for PAPR reduction in OFDM system,” in International Conference on Recent Advances and Innovations in Engineering (ICRAIE-2014), 2014, pp. 1–5, doi: https://doi.org/10.1109/ICRAIE.2014.6909240.

A. Kumar, N. Gaur, “Enhancement of spectral access of optical OFDM system using cognitive radio,” J. Opt. Commun., 2023, doi: https://doi.org/10.1515/joc-2023-0188.