Peak-to-Average Power Ratio Reduction in OFDM Systems Using All-Pass Filters

FPGA Implementation of Inverse Fast Fourier Transform in Orthogonal Frequency Division Multiplexing Systems

“…While comparing this result with recent works (Jeon et al, 2011;Naeiny et al, 2011;Hong et al, 2010;Kim et al, 2006), the face that 4.2dB reduction is achieved with only one IFFT and lowest complexity makes OPS-DSI method a very attractive method suitable for FPGA implementation.…”

“…Most of the recent researches are concentrating on modified SLM and PTS methods Ghassemi et al 2010;Naeiny et al, 2011;Kim et al, 2006;Jeon et al, 2011;Hong et al, 2010). According to the review, most of the modified methods reduce PAPR at the expense of complexity in the transmitter or degrading the spectrum efficiency of the system.…”

An Overview of Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals

“…How to reduce the high computational complexity for searching the optimal phase factors while maintaining a substantial reduction in PAPR has always been a huge problem. Various methods have been proposed in the literature to reduce the computational complexity in PTS, including iterative flipping algorithm [63], gradient descent search [64], sign-selection algorithms [65], genetic algorithm [66], sphere decoding algorithm [67], adaptive PTS approach [68] and many other optimized methods. Reference [69] proposed a modified flipping algorithm based on iterative flipping algorithm.…”

FPGA-Based Realisation of SDR with OFDM Tranceiver

“…Then one can select one sequence with a minimum PAPR ratio [13][14][15][16] . In general, for each FFT requires N/2 log 2 N multiplications and N log 2 N addition.…”