Existence of codes with constant PMEPR and related design
IEEE Transactions on Signal Processing - Part I
High-speed and low-power split-radix FFT
IEEE Transactions on Signal Processing
An active-set approach for OFDM PAR reduction via tone reservation
IEEE Transactions on Signal Processing
Companding transform for reduction in peak-to-average power ratio of OFDM signals
IEEE Transactions on Wireless Communications
SLM and PTS peak-power reduction of OFDM signals without side information
IEEE Transactions on Wireless Communications
Peak-to-mean power control in OFDM, Golay complementary sequences, and Reed-Muller codes
IEEE Transactions on Information Theory
Generalized Reed-Muller codes and power control in OFDM modulation
IEEE Transactions on Information Theory
Upper bounds on the statistical distribution of the crest-factor in OFDM transmission
IEEE Transactions on Information Theory
On multicarrier signals where the PMEPR of a random codeword is asymptotically logn
IEEE Transactions on Information Theory
Generalized bounds on the crest-factor distribution of OFDM signals with applications to code design
IEEE Transactions on Information Theory
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Partial transmit sequence (PTS) is a proven technique to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. It achieves considerable PAPR reduction without distortion, but the high computational complexity of multiple Fourier transforms is a problem in practical systems. To address the complexity, signals at the middle stages of an N-point radix FFT using decimation in frequency (DIF) are employed for PTS subblocking. We formulate OFDM symbols based on these signals to exploit the periodic autocorrelation function (ACF) of the vectors in the PTS subblock partitioning. Error-correcting codes (ECCs) are employed in the subblocking for the PTS radix FFT. This new technique significantly decreases the computational complexity while providing comparable PAPR reduction to ordinary PTS (O-PTS), even with a small number of stages after PTS partitioning. Numerical results are presented which confirm the PAPR improvements.