Low-complexity PTS PAPR reduction scheme for UFMC systems

In this study, a low-computational-complexity partial transmit sequence (PTS) is proposed for reducing peak-to-average power ratios (PAPRs) of universal filtered multi-carriers (UFMCs). First, we analyze the differences in PAPR between a UFMC system and an orthogonal frequency division multiplexing system. Second, we characterize the threshold of the minimum peak power of the UFMC symbol and delete the candidate signal samples with power values below the threshold. This allows for a reduction in the number of time-domain samples that are multiplied by the corresponding phase-rotating vectors; in addition, it can be used for estimating the PAPR. Third, considering the relationship between the phase-weighting sequences, the computational complexity of the candidate signals is simplified. Numerical results show that the proposed PTS scheme achieves nearly the same PAPR reduction as that achieved by the conventional PTS scheme; meanwhile, it has considerably low computational complexity when the probability, $$\beta $$β, of the maximum peak power being more than the possible minimum peak power is greater than or equal to 0.5.

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

[3]  Ronan Farrell,et al.  A Low Complexity Peak-to-Average Power Ratio Reduction Scheme Using Gray Codes , 2016, Wirel. Pers. Commun..

[4]  Chin-Liang Wang,et al.  A Reduced-Complexity PTS-Based PAPR Reduction Scheme for OFDM Systems , 2010, IEEE Transactions on Wireless Communications.

[5]  Frank Schaich,et al.  Waveform Contenders for 5G - Suitability for Short Packet and Low Latency Transmissions , 2014, 2014 IEEE 79th Vehicular Technology Conference (VTC Spring).

[6]  Shanzhi Chen,et al.  The requirements, challenges, and technologies for 5G of terrestrial mobile telecommunication , 2014, IEEE Communications Magazine.

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

[8]  Tao Jiang,et al.  PAPR Reduction of OQAM-OFDM Signals Using Segmental PTS Scheme With Low Complexity , 2014, IEEE Transactions on Broadcasting.

[9]  Jinho Choi,et al.  Cholesky Based Efficient Algorithms for the MMSE-SIC Receiver , 2007, IEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference.

[10]  Liu Kaiming,et al.  PAPR reduction for FBMC-OQAM systems using P-PTS scheme , 2015 .

[11]  R. K. Singh,et al.  An efficient PAPR reduction scheme for OFDM system using peak windowing and clipping , 2015, 2015 Third International Conference on Image Information Processing (ICIIP).

[12]  Bathula Siva Kumar Reddy,et al.  Experimental validation of orthogonal frequency division multiplexing with peak-to-average power ratio reduction and out-band distortion control using software defined radio , 2016, IET Signal Process..

[13]  Lim Dae-Woon,et al.  A New PTS OFDM Scheme with Low Complexity for PAPR Reduction , 2006 .

[14]  Yajun Wang,et al.  Genetic Algorithm Based Nearly Optimal Peak Reduction Tone Set Selection for Adaptive Amplitude Clipping PAPR Reduction , 2012, IEEE Transactions on Broadcasting.

[15]  Yung-Fa Huang,et al.  Peak-to-average power ratio reduction in orthogonal frequency division multiplexing system using differential evolution-based partial transmit sequences scheme , 2012, IET Commun..

[16]  Jong-Seon No,et al.  Low-complexity PTS schemes using OFDM signal rotation and pre-exclusion of phase rotating vectors , 2016, IET Commun..

[17]  G. Nagarajan,et al.  Peak-power reduction using improved partial transmit sequence in orthogonal frequency division multiplexing systems , 2015, Comput. Electr. Eng..

[18]  Rahim Tafazolli,et al.  Single-rate and multi-rate multi-service systems for next generation and beyond communications , 2016, 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC).

[19]  Vikas Kumar,et al.  Reduced out-of-band radiation-based filter optimization for UFMC systems in 5G , 2015, 2015 International Wireless Communications and Mobile Computing Conference (IWCMC).

[20]  Matthieu Crussière,et al.  Tone Reservation Based PAPR Reduction Technique with Individual Carrier Power Allocation for Multiple Peaks Reduction , 2015, 2015 IEEE 81st Vehicular Technology Conference (VTC Spring).

[21]  Yue Xiao,et al.  Nonlinearity Reduction by Tone Reservation with Null Subcarriers for WiMAX System , 2010, Wirel. Pers. Commun..

[22]  Shang-Kang Deng,et al.  Recursive Clipping and Filtering With Bounded Distortion for PAPR Reduction , 2007, IEEE Transactions on Communications.

[23]  Hyun-Seung Joo,et al.  An Efficient Selection Method of a Transmitted OFDM Signal Sequence for Various SLM Schemes , 2016, IEICE Trans. Commun..

[24]  T. Deepa,et al.  Performance Evaluation of a Low Complexity Row-Column Transform Approach for SLM Based OFDM Transmission System , 2016, Wirel. Pers. Commun..

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

[26]  Chintha Tellambura,et al.  Computation of the continuous-time PAR of an OFDM signal with BPSK subcarriers , 2001, IEEE Communications Letters.