LOW-COMPLEXITY PEAK-TO-AVERAGE RATIO INHIBITION METHOD OF FRFT-OFDM SYSTEM

摘要

The present invention relates to a low-complexity peak-to-average ratio (PAPR) inhibition method of an FRFT-OFDM system, and belongs to the technical field of broadband wireless digital communication, and can be used for reducing a PAPR of an FRFT-OFDM system. The method effectively reduces the operational complexity based on a fractional order random phase sequence and a fractional order circular convolution theorem. The method of the present invention has advantages of simple system implementation and low calculation complexity. According to the method, the system reliability is maintained, and the PAPR of the system can also be effectively reduced. When the numbers of candidate signals are identical, the method has the same PAPR inhibition performance as an SLM method and has better PAPR inhibition performance than a PTS method. In addition, compared with the SLM method and the PTS method, the calculation complexity is greatly reduced.