Low Complexity Hybrid Scheme for PAPR Reduction in OFDM Systems Based on SLM and Clipping

Abstract—In this paper, we present a low complexity hybrid scheme using conventional selective mapping (C-SLM) and clipping algorithms to reduce the high peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signal. In the proposed scheme, the input data sequence (X) is divided into two subblocks, then clipping algorithm is applied to the first sub-block, whereas C-SLM algorithm is applied to the second sub-block in order to reduce both computational complexity and PAPR. The resultant time domain OFDM signal is obtained by combining the output of two sub-blocks. The simulation results show that the proposed hybrid scheme provides 0.45 dB PAPR reduction gain at CCDF value of 10-2 and 52% of computational complexity reduction when compared to C-SLM scheme at the expense of slight degradation in bit error rate (BER) performance.

[1]  Borhanuddin Mohd Ali,et al.  Partial transmit sequence scheme with new phase sequence for PAPR reduction in OFDM systems , 2011, IEEE Transactions on Consumer Electronics.

[2]  Shaoqian Li,et al.  Low-complexity PAPR reduction technique for OFDM systems using modified widely linear SLM scheme , 2012 .

[3]  R. Bäuml,et al.  Reducing the peak-to-average power ratio of multicarrier modulation by selected mapping , 1996 .

[4]  Jianhua Ge,et al.  Peak-to-Average Power Ratio Reduction of OFDM Signals Using PTS Scheme With Low Computational Complexity , 2011, IEEE Transactions on Broadcasting.

[5]  Seung Hee Han,et al.  An overview of peak-to-average power ratio reduction techniques for multicarrier transmission , 2005, IEEE Wireless Communications.

[6]  Alexandru Isar,et al.  PAPR Reduction of OFDM Signals using Partial Transmit Sequence and Clipping Hybrid Scheme , 2012, ICT 2012.

[7]  Jae Hong Lee,et al.  An overview of peak-to-average power ratio reduction techniques for multicarrier transmission , 2005, IEEE Wireless Communications.

[8]  Geoffrey Ye Li,et al.  OFDM and Its Wireless Applications: A Survey , 2009, IEEE Transactions on Vehicular Technology.

[9]  J. Jedwab,et al.  Peak-to-mean power control in OFDM, Golay complementary sequences and Reed-Muller codes , 1998, Proceedings. 1998 IEEE International Symposium on Information Theory (Cat. No.98CH36252).

[10]  Hideki Ochiai,et al.  Performance of the deliberate clipping with adaptive symbol selection for strictly band-limited OFDM systems , 2000, IEEE Journal on Selected Areas in Communications.

[11]  Z.-Q. Luo,et al.  Optimized Iterative Clipping and Filtering for PAPR Reduction of OFDM Signals , 2011, IEEE Transactions on Communications.

[12]  王述.  Peak to average power ratio reduction , 2008 .

[13]  Chintha Tellambura,et al.  Tone injection for PAPR reduction using parallel tabu search algorithm in OFDM systems , 2012, 2012 IEEE Global Communications Conference (GLOBECOM).

[14]  M. García,et al.  Efficient implementation of complementary Golay sequences for PAR reduction and forward error correction in OFDM-based WLAN systems , 2008 .

[15]  Youxi Tang,et al.  Simplified Approach to Optimized Iterative Clipping and Filtering for PAPR Reduction of OFDM Signals , 2013, IEEE Transactions on Communications.

[16]  C. J. Duanmu,et al.  Reduction of the PAPR in OFDM Systems by Intelligently Applying Both PTS and SLM Algorithms , 2014, Wirel. Pers. Commun..

[17]  V. Sudha,et al.  Low Complexity Peak-to-Average Power Ratio Reduction in Orthogonal Frequency Division Multiplexing System by Simultaneously Applying Partial Transmit Sequence and Clipping Algorithms , 2015 .

[18]  Xiaodong Li,et al.  Effects of clipping and filtering on the performance of OFDM , 1997, 1997 IEEE 47th Vehicular Technology Conference. Technology in Motion.

[19]  Alexander Lampe,et al.  A hybrid PAPR reduction scheme for OFDM using SLM with clipping at the transmitter, and sparse reconstruction at the receiver , 2014, 2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14).

[20]  Alexandru Isar,et al.  PAPR reduction of OFDM signals using selective mapping and clipping hybrid scheme , 2012, 2012 Proceedings of the 20th European Signal Processing Conference (EUSIPCO).

[21]  Tao Jiang,et al.  An Improved Tone Reservation Scheme With Fast Convergence for PAPR Reduction in OFDM Systems , 2011, IEEE Transactions on Broadcasting.

[22]  Rui J. P. de Figueiredo,et al.  Performance Analysis of the Clipping Scheme with SLM Technique for PAPR Reduction of OFDM Signals in Fading Channels , 2012, Wirel. Pers. Commun..

[23]  Edward J. Powers,et al.  Performance Analysis of OFDM Systems with Selected Mapping in the Presence of Nonlinearity , 2013, IEEE Transactions on Wireless Communications.

[24]  Douglas L. Jones,et al.  PAR reduction in OFDM via active constellation extension , 2003, 2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03)..

[25]  Douglas L. Jones,et al.  PAR reduction in OFDM via active constellation extension , 2003, IEEE Trans. Broadcast..

[26]  Hideki Ochiai,et al.  Performance analysis of deliberately clipped OFDM signals , 2002, IEEE Trans. Commun..