Skip to main content
SpringerLink
Log in

PAR Reduction in SU/MU-MIMO OFDM Systems Using OPF Precoding Over the Nonlinearity of SSPA

  • Published:
Wireless Personal Communications Aims and scope Submit manuscript

Abstract

Orthogonal frequency division multiplexing (OFDM) system suffers from a high peak-to-average (power) ratio (PAR) which leads to power inefficiency in radio frequency section and large performance degradation of system due to the nonlinearity of high power amplifiers (HPA). In this paper, a new downlink transmission scheme is designed based on orthogonal periodic function (OPF) precoding to achieve low PAR and investigated for single user and multi-user multiple-input multiple-output wireless systems. It is shown (through mathematical analysis and computer simulations) that the proposed transmission scheme can provide a significant PAR reduction using decorrelation, phase-rotation and orthogonality properties of OPF precoding, while it does not change power spectral levels or error performances due to the unitary property when compared with the normal OFDM systems with linear HPA. The OPF precoding outperforms existing precoding schemes when nonlinear solid state power amplifier (SSPA) is considered with several practical values of input back-off (IBO). Computer simulations show that the OPF precoding can achieve 3.1 and 4 dB PAR gain, while 2.2 and 1 dB SNR gain for IEEE 802.11a and DVB-T systems respectively. Moreover, OPF precoding leads to a total degradation improvement from 0.13 to 1.53 dB for 16 QAM, considering an SSPA with IBO = 8–4 dB respectively. OPF precoding does not increase computational complexity when compared with the existing precoding methods. It is shown that the performance of the proposed precoding is independent of modulation schemes and can work for any number of subcarriers.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15

References

  1. Jiang, T., Xiang, W., Chen, H. H., & Ni, Q. (2007). Multicast broadcasting services support in OFDMA-based WiMAX systems. IEEE Communications Magazine, 45(8), 78–86.

    Article  Google Scholar 

  2. Han, S. H., & Lee, J. H. (2005). An overview of peak-to-average power ratio reduction techniques for multicarrier transmission. IEEE Personal Communications, 12(2), 56–65.

    Google Scholar 

  3. Jiang, T., & Wu, Y. (2008). An overview: Peak-to-average power ratio reduction techniques for OFDM signals. IEEE Transactions on Broadcasting, 54(2), 257–268.

    Article  Google Scholar 

  4. Hasan, M. M. (2014). A new PAPR reduction scheme for OFDM systems based on gamma correction. Circuits, Systems & Signal Processing, Springer, 33(5), 1655–1668.

    Article  Google Scholar 

  5. Park, M., Heeyong, J., Cho, J., Cho, N., Hong, D., & Kang, C. (2000). PAPR reduction in OFDM transmission using Hadamard transform. IEEE International Conference on Communications, 1, 430–433.

    Article  Google Scholar 

  6. Baig, I., & Jeoti, V. (2011). A novel ZCMT precoded interleaved-OFDMA uplink system for 4G cellular systems: PAPR performance. IETE Journal of Research, 57(6), 557–562.

    Article  Google Scholar 

  7. Baig, I. & Jeoti, V. (2010). DCT precoded SLM technique for PAPR reduction in OFDM systems. In 2010 International conference on intelligent and advanced systems (pp. 1–6).

  8. Slimane, S. B. (2007). Reducing the peak-to-average power ratio of OFDM signals through precoding. IEEE Transactions on Vehicular Technology, 56(2), 686–695.

    Article  Google Scholar 

  9. Hasan, M. M. (2013). VLM precoded SLM technique for PAPR reduction in OFDM systems. Wireless Personal Communication, 73(3), 791–801.

    Article  Google Scholar 

  10. Hasan, M. M. (2014). A novel CVM precoding scheme for PAPR reduction in OFDM transmissions. Wireless Networks,. doi:10.1007/s11276-014-0692-3

    Google Scholar 

  11. Hasan, M. M. (2014). A new PAPR reduction technique in OFDM systems using linear predictive coding. Wireless Personal Communications, 75(1), 707–721.

    Article  Google Scholar 

  12. Hasan, M. M. (2014). PAPR reduction in OFDM systems based on autoregressive filtering. Circuits, Systems & Signal Processing, Springer, 33(5), 1637–1654.

    Article  Google Scholar 

  13. Costa, E., & Pupolin, S. (2002). M-QAM-OFDM system performance in the presence of a nonlinear amplifier and phase noise. IEEE Transactions on Communications, 50(3), 462–472.

    Article  Google Scholar 

  14. Anwar, K., Hara, T. & Okada, M. (2008). An effective iterative clipping for coded CI/OFDM systems over the nonlinearity. In IEEE PIMRC 2008.

  15. Spencer, Q. H., Peel, C. B., Swindlehurst, A. L., & Haardt, M. (2004). An introduction to the multi-user MIMO downlink. IEEE Communications Magazine, 42(10), 60–67.

    Article  Google Scholar 

  16. Hamming, R. W. (1973). Numerical methods for scientists and engineers (2nd ed.). New York, NY: McGraw-Hill.

    Google Scholar 

  17. Tellambura, C. (2000). Upper bound on peak factor of N-multiple carriers. Electronics Letter, 36(14), 1226–1228.

    Article  Google Scholar 

  18. Lin, Y. P., & Phoong, S. M. (2003). BER minimized OFDM systems with channel independent precoders. IEEE Transactions on Signal Processing, 51(9), 2369–2380.

    Article  Google Scholar 

  19. Proakis, J. G. (1995). Digital communications. New York: McGraw-Hill.

    Google Scholar 

  20. Karris, S. T. (2012). Signals and systems with MATLAB computing and simulink modeling (5th ed., pp. 10–18). Devon: Orchard Publications.

    Google Scholar 

Download references

Acknowledgments

The author would like to thank the anonymous reviewers for providing useful comments and suggestions which have enhanced the quality of this paper. Additionally, their queries while reading the paper have been useful in improving the quality of the paper and the contents covered.

Author information

Authors and Affiliations

  1. Electronics and Communication Engineering, University of Information Technology and Sciences, Dhaka, 1212, Bangladesh

    Md. Mahmudul Hasan

Authors
  1. Md. Mahmudul Hasan
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Md. Mahmudul Hasan.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Hasan, M.M. PAR Reduction in SU/MU-MIMO OFDM Systems Using OPF Precoding Over the Nonlinearity of SSPA. Wireless Pers Commun 83, 2225–2248 (2015). https://doi.org/10.1007/s11277-015-2513-0

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11277-015-2513-0

Keywords

Search

Navigation