A high peak-to-average power ratio reduction in OFDM systems by ideal N/2-shift aperiodic auto-correlation property

This paper presents a new method for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplex (OFDM) BPSK systems based on the auto-correlation property of the data symbol sequence. Herein it is demonstrated that a significant PAPR reduction of 6 dB, independent of the number of subcarriers, can be achieved by assuring the appropriate auto-correlation property of transmitted data symbol sequences. Since the approach relies on redundant symbols, meeting the condition of a rate R = 0.75 complementary parity code, some degree of error correction is also achieved