access icon free Partial phase weighting selected mapping scheme for peak-to-average power ratio reduction in orthogonal frequency division multiplexing system

As one of the most attractive schemes, selected mapping (SLM) provides an effective solution for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) system. However, in conventional SLM (CSLM), the large number of inverse fast Fourier transform (IFFT) operations are required for achieving the satisfactory PAPR reduction performance, which results in the large computational complexity. In this study, a partial phase weighting SLM (PPW-SLM) for PAPR reduction in OFDM system is proposed. In the proposed PPW-SLM, partial phase weighting method and the properties of IFFT are employed for simplifying the calculations of IFFTs and obtaining good PAPR reduction performance. Theoretical analysis and simulation results show that, compared with CSLM, the proposed PPW-SLM can obtain a significant computational complexity reduction in similar PAPR reduction performance.

Inspec keywords: fast Fourier transforms; inverse transforms; OFDM modulation; computational complexity

Other keywords: partial phase weighting method; PAPR reduction performance; computational complexity reduction; selected mapping; theoretical analysis; inverse fast Fourier transform; orthogonal frequency division multiplexing system; CSLM; peak-to-average power ratio reduction; theoretical simulation; PPW-SLM; OFDM system; IFFT operations; conventional SLM; partial phase weighting selected mapping scheme

Subjects: Modulation and coding methods; Integral transforms

References

    1. 1)
    2. 2)
    3. 3)
    4. 4)
      • 22. Wang, C.-L., Wang, S.-S., Chang, H.-L.: ‘A low-complexity SLM based PAPR reduction scheme for SFBC MIMO-OFDM systems’. Proc. IEEE Wireless Communications and Networking Conf. (WCNC), Quintana-roo, Mexico, March 2011, pp. 14491453.
    5. 5)
    6. 6)
      • 10. Thompson, S.C.: ‘Constant envelope OFDM phase modulation’. PhD thesis, University of California, 2005.
    7. 7)
    8. 8)
    9. 9)
    10. 10)
    11. 11)
    12. 12)
      • 23. Siegl, C.: ‘Peak-to-average Power Ratio Reduction in Multi-antenna OFDM via Multiple Signal Representation’. PhD thesis, University of Erlangen, 2010.
    13. 13)
    14. 14)
    15. 15)
    16. 16)
    17. 17)
    18. 18)
      • 1. Hanzo, L., Munster, M., Choi, B.J., et al: ‘OFDM and MC-CDMA for broadband multi-user communications, WLANs and broadcasting’ (John Wiley, 2003).
    19. 19)
    20. 20)
    21. 21)
    22. 22)
    23. 23)
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-com.2014.0299
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