Skip to main content
SpringerLink
Log in

Rotated precoder-based OFDM system robust to channel spectral nulls and with reduced PAPR

  • Published:
annals of telecommunications - annales des télécommunications Aims and scope Submit manuscript

Abstract

Recently, the precoded orthogonal frequency division multiplexing (OFDM) was proposed to show robustness to intersymbol interference channels with spectral nulls. However, due to inserting (M-K) zeros between each two sets of K consecutive information symbols, the average transmitting power of the precoded OFDM system reduces by 10 log10 (M/K) dB compared with the conventional OFDM system. Under the same points, inverse fast Fourier transformation (IFFT), the precoded OFDM system has a higher peak-to-average power ratio (PAPR) compared with the conventional OFDM system. This paper proposes a rotated precoder-based OFDM system robust to channel spectral nulls and with reduced PAPR. The rotated precoder makes the N-point IFFT with N/2 zeros padded. Since half of the information symbols for IFFT are zeros, we have the PAPR reduced by 10 log10 2≈3 dB approximately, compared with the conventional precoded OFDM system. We also show that the proposed OFDM system has the same bit error rate (BER) performance as the conventional precoded OFDM system. Both theoretical performance analysis and simulation results are presented to verify the correctness of our theory analysis.

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.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

  1. Feiten A, Mathar R, Reyer M (2008) Rate and power allocation for multiuser OFDM: an effective heuristic verified by branch-and-bound. IEEE Transactions on Wireless Communications 7(1):60–64

    Article  Google Scholar 

  2. Bansal G, Hossain J, Bhargava VK (2008) Optimal and suboptimal power allocation schemes for OFDM-based cognitive radio systems. IEEE Transactions on Wireless Communications 7(11):4710–4718

    Article  Google Scholar 

  3. Zhang H, Xia XG (2006) Iterative decoding and demodulation for single-antenna vector OFDM systems. IEEE Transactions on Vehicular Technology 55(4):1447–1454

    Article  Google Scholar 

  4. Radio broadcasting systems; digital audio broadcasting (DAB) to mobile, portable and fixed receiver, ETSI EN 300 401 V1.3.3 (2001-5), 2001

  5. Nee RV, Prasad R (2000) OFDM for wireless multimedia communications: Artech House Publisher

  6. Wu H, Huang X, Xu D (2006) Novel semi-blind ICI equalization algorithm for wireless OFDM systems. IEEE Transactions on Broadcasting 52(2):211–218

    Article  MathSciNet  Google Scholar 

  7. Draft supplement to Standard for Telecommunications and Information Exchange Between Systems-LAN/MSN Specific Requirements-Part 11: wireless MAC and PHY specifications: high speed physical layer in the 5 GHz band, IEEE 802.11, 1999

  8. Project IEEE 802.11 g Standard for Higher Rate (20 + Mbps) Extensions in the 2.4 GHz Band, IEEE P802.11-TASK GROUP G-, 2003

  9. Manton JH (2002) The convex geometry of subchannel attenuation coefficients in linearly precoded OFDM systems. IEEE Transactions on Information Theory 48(5):1203–1206

    Article  MATH  MathSciNet  Google Scholar 

  10. Shah SFA, Tewfik H (2008) Design and analysis of post-coded OFDM systems. IEEE Transactions on Wireless Communications 7(12):4907–4918

    Article  Google Scholar 

  11. Xia XG (2001) Precoded and vector OFDM robust to channel spectral nulls and with reduced cyclic prefix length in single transmit antenna systems. IEEE Transactions on Communications 49(8):1363–1374

    Article  MATH  Google Scholar 

  12. Zhang H, Xia X-G, Zhang Q, Zhu W (2002) Precoded OFDM with adaptive vector channel allocation for scalable video transmission over frequency-selective fading channels. IEEE Transactions on Mobile Computing 1(2):132–142

    Article  Google Scholar 

  13. Zhang H, Xia X-G, Cimini LJ Jr, Ching PC (2005) Synchronization techniques and guard-band-configuration scheme for single-antenna vector-OFDM systems. IEEE Transactions on Wireless Communications 4(5):2454–2464

    Article  Google Scholar 

  14. Lin YP, Phoong SM (2003) BER minimized OFDM systems with channel independent precoders. IEEE Transactions on Signal Processing 51(9):2369–2380

    Article  Google Scholar 

  15. Yücek T, Arslan H (2007) MMSE noise plus interference power estimation in adaptive OFDM systems. IEEE Transactions on Vehicular Technology 56(6):3857–3863

    Article  Google Scholar 

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

    Article  MathSciNet  Google Scholar 

  17. Wiegandt DA, Wu Z, Nassar CR (2003) High-throughput, high-performance OFDM via pseudo-orthogonal carrier interferometry spreading codes. IEEE Transactions on Communications 51(7):1123–1134

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Communication Research Center, Harbin Institute of Technology, Harbin, 150001, People’s Republic of China

    Xin-Lin Huang & Gang Wang

  2. Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL, 35487, USA

    Fei Hu

Authors
  1. Xin-Lin Huang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Gang Wang
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Fei Hu
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Xin-Lin Huang.

Additional information

This work was supported in part by China Ministry of Science and Technology under Grant No. 2007CB310601 and in part by PLA General Armament Department under Grant No. 51306020201.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Huang, XL., Wang, G. & Hu, F. Rotated precoder-based OFDM system robust to channel spectral nulls and with reduced PAPR. Ann. Telecommun. 65, 375–383 (2010). https://doi.org/10.1007/s12243-010-0177-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12243-010-0177-z

Keywords

Search

Navigation