Generalized Trapezoidal Companding Technique for PAPR Reduction in OFDM Systems

被引：1
作者：
Gupta S. [1 ]
Goel A. [1 ]
机构：
[1] Ece, Jaypee Institute of Information Technology, Noida
来源：
Journal of Optical Communications | 2021年 / 42卷 / 02期
关键词：
BER; CCDF; nonlinear companding; OFDM; PAPR;
D O I：
10.1515/joc-2018-0083
中图分类号：
学科分类号：
摘要：
The main drawback in the performance of the Orthogonal Frequency Division Multiplexing (OFDM) system is the higher Peak-to-Average Power Ratio (PAPR) of the OFDM signals at the transmitter side. Companding is a well-known technique useful for reducing PAPR in the OFDM signal. This paper proposes a new nonlinear companding scheme that transforms the magnitude of Rayleigh distributed OFDM signal of specific degree into trapezoidal distribution. Additional design parameter is used in the proposed companding scheme to make the companding function more flexible. In the designed OFDM system the companding function has more degree of freedom which improves the PAPR and bit error rate (BER) parameters of the designed system. It has been demonstrated that the designed companding scheme provides more flexibility to accomplish an optimum trade-off between the performance parameters PAPR and BER of the designed OFDM system. © 2018 Walter de Gruyter GmbH, Berlin/Boston 2018.
引用
收藏
页码：341 / 349
页数：8
相关论文
共 22 条
  • [1] Wu Y., Zou W.Y., Orthogonal frequency division multiplexing: A multi-carrier modulation scheme, Ieee Trans Broadcast, 41, 3, pp. 392-399, (1995)
  • [2] Jiang T., Wu Y., An overview: Peak-to-average power ratio reduction techniques for OFDM signals, Ieee Trans Broadcast, 54, 2, pp. 257-268, (2008)
  • [3] Hou J., Ge J., Zhai D., Li J., Peak-to-average power ratio reduction of OFDM signals with nonlinear companding scheme, Ieee Trans Broadcast, 56, 2, pp. 258-262, (2010)
  • [4] Li X., Cimini L.J., Effects of clipping and filtering on the performance of OFDM, Ieee Commun Lett, 2, 5, pp. 131-133, (1998)
  • [5] Wang Y.C., Luo Z.Q., Optimized iterative clipping and filtering for PAPR reduction of OFDM signals, Ieee Trans Commun, 59, 1, pp. 33-37, (2011)
  • [6] Jones A.E., Wilkinson T.A., Barton S.K., Block coding scheme for reduction of peak to mean envelope power ratio of multicarrier transmission schemes, Ieee Electron Lett, 30, 25, pp. 2098-2099, (1994)
  • [7] Le Goff S.Y., Khoo B.K., Tsimenidis C.C., Sharif B.S., A novel selected mapping technique for PAPR reduction in OFDM systems, Ieee Trans Commun, 56, 11, pp. 17775-11779, (2008)
  • [8] Ghassemi A., Gulliver T.A., A low complexity PTS-based radix FFT method for PAPR reduction in OFDM systems, Ieee Trans Process, 56, 3, pp. 1161-1166, (2008)
  • [9] Krongold B.S., Jones D.L., PAPR reduction in OFDM via active constellation extension, Ieee Trans Broadcast, 49, 3, pp. 258-268, (2003)
  • [10] Dalakas V., Rontogiannis A.A., Mathiopoulos P.T., Time domain constellation shaping technique for peak to average power ratio reduction, Iet Commun, 3, 7, pp. 1144-1152, (2009)
123