A comparative study of precoding techniques for PAPR reduction of OFDM signals

Document Type : Research Paper

Authors

1 Department of Electrical Engineering, University of Bonab, Bonab, Iran

2 Engineering Faculty of Khoy, Urmia University of Technology, Urmia, Iran

Abstract

Orthogonal frequency division multiplexing (OFDM) is an attractive approach for multi-channel transmission. Due to some advantages such as high spectral efficiency, simplicity in channel equalization, and robustness to the fading channel, the OFDM technique has been generally used in many wireless communication devices. Besides these advantages, the OFDM systems usually experience a high peak-to-average power ratio (PAPR). As a result of the high PAPR, the OFDM signal is clipped during the passing via a non-linear power amplifier. The precoding techniques decrease the autocorrelation of the input data symbols to mitigate the high PAPR. In this paper, we compare WHMT, VLMT, DCMT, DHMT, DFMT, ZCMT, and CVMT precoding approaches in terms of autocorrelation and PAPR reduction performance. We demonstrate that the serial combinations of both ZCMT and CVMT precoding matrices with the IFFT matrix cancel the impact of each other when their dimensions are the same. In this case, a sparse matrix is produced and hence the PAPR of the OFDM signal is remarkably reduced. This issue is proved by the mathematical calculations and verified by the simulation results. It is also presented that DFMT, ZCMT, and CVMT precoding schemes have almost the same PAPR reduction performance and they are the best among their counterparts.

Keywords

References

1- S. Ghazi-Maghrebi, F. Khordadpour-Deylamani, “Evaluation Performance of OFDM Mutlicarrier Modulation over Rayleigh and Rician Standard Channels Using WPT-OFDM Modulations,” Journal of Communication Engineering, vol. 6, no. 2, pp. 141-150, July-Dec. 2017.
2- R. Van Nee, A. De Wild, “Reducing the peak-to-average power ratio of OFDM, in: VTC'98,” 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No. 98CH36151), vol. 3, pp. 2072-2076, 1998.
3- F. Sandoval, G. Poitau, F. Gagnon, “Hybrid peak-to-average power ratio reduction techniques: Review and performance comparison,” IEEE Access, vol. 5, pp. 27145-27161, 2017.
4- K. Anoh, C. Tanriover, B. Adebisi, “On the optimization of iterative clipping and filtering for PAPR reduction in OFDM systems,” IEEE Access, vol. 5, pp. 12004-12013, 2017.
5- S. Peng, Z. Yuan, “A novel criterion for designing of nonlinear companding functions for peak-to-average power ratio reduction in multicarrier transmission systems,” Wireless Networks, vol. 24, no. 2, pp. 581-595, Feb. 2018.
6- T. Jiang, G. Zhu, J. Zheng, “Block coding scheme for reducing PAPR in OFDM systems with large number of subcarriers,” Journal of Electronics, vol. 21, no. 6, pp. 482-489, Nov. 2004.
7- M. Habibi, M. F. Naeiny, “Selective Tone Reservation method for PAPR reduction in SFBC-OFDM systems,” Journal of Communication Engineering, vol. 3, no. 2, pp. 109-122, July-Dec. 2014.
8- S. B. Slimane, “Reducing the peak-to-average power ratio of OFDM signals through precoding,” IEEE Trans. Vehicular Technology, vol. 56, no. 2, pp. 686-695, March 2007.
9- R. Xu, L. Wang, Z. Geng, H. Deng, L. Peng, L. Zhang, “A unitary precoder for optimizing spectrum and PAPR characteristic of OFDMA signal,” IEEE Trans. Broadcasting, vol. 64, no. 2, pp. 293-306, June 2017.
10- C.-Y. Hsu, H.-C. Liao, “Generalised precoding method for papr reduction with low complexity in OFDM systems,” IET Communications, vol. 12, no. 7, pp. 796-808, 2018.
11- Y. A. Jawhar, L. Audah, M. A. Taher, K. N. Ramli, N. S. M. Shah, M. Musa, M. S. Ahmed, “A review of partial transmit sequence for papr reduction in the OFDM systems,” IEEE Access, vol. 7, pp. 18021-18041, 2019.
12- S. Mohammady, R. M. Sidek, P. Varahram, M. Hamidon, N. Sulaiman, “A low complexity selected mapping scheme for peak to average power ratio reduction with digital predistortion in ofdm systems,” International Journal of Communication Systems, vol. 26, no. 4, pp. 481-494, 2013.
13- T. Jiang, Y. Wu, “An overview: Peak-to-average power ratio reduction techniques for OFDM signals,” IEEE Trans. broadcasting, vol. 54, no. 2, pp. 257-268, June 2008.
14- Y. Rahmatallah, S. Mohan, “Peak-to-average power ratio reduction in OFDM systems: A survey and taxonomy,” IEEE communications surveys & tutorials, vol. 15, no. 4, pp. 1567-1592, 4th quarter 2013.
15- M. Park, H. Jun, J. Cho, N. Cho, D. Hong, C. Kang, “PAPR reduction in OFDM transmission using Hadamard transform,” IEEE International Conference on Communications, vol. 1, pp. 430-433, 2000.
16- M. M. Hasan, “VLM precoded SLM technique for PAPR reduction in OFDM systems,” Wireless personal communications, vol. 73, no. 3, pp. 791-801, 2013.
17- I. Baig, M. Ayaz, V. Jeoti, “On the peak-to-average power ratio reduction in mobile wimax: A discrete cosine transform matrix precoding based random-interleaved orthogonal frequency division multiple access uplink system,” Journal of network and computer applications, vol. 36, no. 1, pp. 466-475, Jan. 2013.
18- A. A. Shari, “Discrete Hartley matrix transform precoding-based OFDM system to reduce the high PAPR,” ICT Express, vol. 5, no. 2, pp. 100-103, June 2019.
19- A. S. Lakamana, A. M. Prasad, “An effective composite PAPR reduction technique of OFDM by using DFT precoding with piecewise linear companding,” International Conference on Communication and Electronics Systems (ICCES), pp. 1-6, 2016.
20- R. Ahmad, A. Srivastava, “PAPR reduction of OFDM signal through DFT precoding and GMSK pulse shaping in indoor VLC,” IEEE Access, vol. 8, pp. 122092-122103, 2020.
21- L. Cho, H.-C. Liao, C.-Y. Hsu, “Adjustable PAPR reduction for DFT-S-OFDM via improved general precoding scheme,” Electronics Letters, vol. 54, no. 14, pp. 903-905, May 2018.
22- I. Baig, V. Jeoti, “A ZCMT precoding based multicarrier OFDM system to minimize the high PAPR,” Wireless personal communications, vol. 68, no. 3, pp. 1135-1145, Feb. 2013.
23- M. M. Hasan, “A novel CVM precoding scheme for PAPR reduction in OFDM transmissions,” Wireless networks, vol. 20, no. 6, pp. 1573-1581, Aug. 2014.
24- C. Tellambura, “Upper bound on peak factor of N-multiple carriers,” Electronics Letters, vol. 33, no. 19, pp. 1608-1609, Sept. 1997

Files

Share

How to cite

Statistics