PAPR reduction in OFDM systems using precoding with clipping

A high peak-to-average power ratio (PAPR) is a major concern of an orthogonal frequency division multiplexing (OFDM) system. In this paper, a combination of pre-coding and clipping is used to reduce PAPR. This dual operation of pre-coding and clipping provides better PAPR than both conventional pre-coding and clipping method. With this technique, the PAPR can be reduced without increasing roll-off factor. The bit error rate (BER) has also been taken as performance evaluation parameter. Two pulse shapes namely square root raised cosine (SQRC) and better than raised cosine (BTRC) are also compared with the proposed technique to reduce PAPR.

[1]  Voon Chin Phua,et al.  Wireless lan medium access control (mac) and physical layer (phy) specifications , 1999 .

[2]  Robert J. Baxley,et al.  Comparing Selected Mapping and Partial Transmit Sequence for PAR Reduction , 2007, IEEE Transactions on Broadcasting.

[3]  T. Wilkinson,et al.  Block coding scheme for reduction of peak to mean envelope power ratio of multicarrier transmission schemes , 1994 .

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

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

[6]  Kenneth G. Paterson,et al.  Generalized Reed-Muller codes and power control in OFDM modulation , 1998, IEEE Trans. Inf. Theory.

[7]  Nj Piscataway,et al.  Wireless LAN medium access control (MAC) and physical layer (PHY) specifications , 1996 .

[8]  Miin-Jong Hao,et al.  Precoding for PAPR Reduction of OFDM Signals With Minimum Error Probability , 2010, IEEE Transactions on Broadcasting.

[9]  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.

[10]  Leonard J. Cimini,et al.  Analysis and Simulation of a Digital Mobile Channel Using Orthogonal Frequency Division Multiplexing , 1985, IEEE Trans. Commun..

[11]  Slimane Ben Slimane.  Peak-to-average power ratio reduction of OFDM signals using pulse shaping , 2000, Globecom '00 - IEEE. Global Telecommunications Conference. Conference Record (Cat. No.00CH37137).

[12]  J. Huber,et al.  OFDM with reduced peak-to-average power ratio by optimum combination of partial transmit sequences , 1997 .

[13]  John G. Proakis,et al.  Digital Communications , 1983 .

[14]  Tao Jiang,et al.  Exponential companding technique for PAPR reduction in OFDM systems , 2005, IEEE Trans. Broadcast..

[15]  Xiaodong Li,et al.  Effects of clipping and filtering on the performance of OFDM , 1998, IEEE Communications Letters.

[16]  Framing structure , channel coding and modulation for digital terrestrial television , 2022 .

[17]  Todor Cooklev,et al.  Air Interface for Fixed Broadband Wireless Access Systems , 2004 .

[18]  Amir K. Khandani,et al.  Integer-based constellation-shaping method for PAPR reduction in OFDM systems , 2006, IEEE Transactions on Communications.