DCT precoded SLM technique for PAPR reduction in OFDM systems

High Peak to Average Power Ratio (PAPR) is still a most important challenge in Orthogonal Frequency Division Multiplexing (OFDM) system. In this paper, we propose a Discrete Cosine Transform (DCT) precoding based SLM technique for PAPR reduction in OFDM systems. This technique is based on precoding the constellation symbols with DCT precoder after the multiplication of phase rotation factor and before the Inverse Fast Fourier Transform (IFFT) in SLM-OFDM System. Simulation results show that our proposed technique can reduce the PAPR to about 5.5dB for N=64 and V=16 at clipping probability of 10−3.

[1]  Chintha Tellambura,et al.  A simplified clipping and filtering technique for PAR reduction in OFDM systems , 2005, IEEE Signal Processing Letters.

[2]  Jae Hong Lee,et al.  PAPR reduction of OFDM signals using a reduced complexity PTS technique , 2004, IEEE Signal Processing Letters.

[3]  Chin-Liang Wang,et al.  Low-complexity selected mapping schemes for peak-to-average power ratio reduction in OFDM systems , 2005, IEEE Transactions on Signal Processing.

[4]  Seokho Yoon,et al.  A novel PAPR reduction scheme for OFDM systems: selective mapping of partial tones (SMOPT) , 2006, 2006 Digest of Technical Papers International Conference on Consumer Electronics.

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

[6]  Andreas Antoniou,et al.  A New Peak-to-Average Power-Ratio Reduction Algorithm for OFDM Systems via Constellation Extension , 2007, IEEE Transactions on Wireless Communications.

[7]  R. V. Nee,et al.  Reducing the peak-to-average power ratio of OFDM , 1998, VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151).

[8]  Homayoun Nikookar,et al.  Random phase updating algorithm for OFDM transmission with low PAPR , 2002, IEEE Trans. Broadcast..

[9]  Yuan Ouyang,et al.  Low-complexity selected mapping schemes for peak-to-average power ratio reduction in OFDM systems , 2005 .

[10]  Tao Jiang,et al.  Two novel nonlinear companding schemes with iterative receiver to reduce PAPR in multi-carrier modulation systems , 2006, IEEE Transactions on Broadcasting.

[11]  Yiyan Wu,et al.  Orthogonal frequency division multiplexing: a multi-carrier modulation scheme , 1995 .

[12]  Enchang Sun,et al.  A method for PAPR reduction in MSE-OFDM systems , 2006, 20th International Conference on Advanced Information Networking and Applications - Volume 1 (AINA'06).

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

[14]  Jose Tellado-Mourelo,et al.  Peak to average power reduction for multicarrier modulation , 1999 .

[15]  Jong-Seon No,et al.  A new SLM OFDM scheme with low complexity for PAPR reduction , 2005, IEEE Signal Process. Lett..

[16]  Tao Jiang,et al.  Complement block coding for reduction in peak-to-average power ratio of OFDM signals , 2005, IEEE Commun. Mag..

[17]  Tao Jiang,et al.  An Overview: Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals , 2008, IEEE Transactions on Broadcasting.

[18]  Slimane Ben Slimane,et al.  Reducing the Peak-to-Average Power Ratio of OFDM Signals Through Precoding , 2007, IEEE Transactions on Vehicular Technology.