A novel PTS architecture for PAPR reduction of OFDM signals And UF OFDM

In this proposed system a precoding-based PAPR reduction technique is proposed for both the UF-OFDM and the F-OFDM cases. In this system we are using the Zadoff Chu Transform for the precoding process. The input bit stream is first modulated by QAM modulation and then the precoding technique is performed. For UF-OFDM, after that the inverse discrete Fourier transform is performed on the data streams and then the filtering is applied. For the filtering operation Chebyshev filter is performed and then the data are send through the channel. Finally the performance of the proposed system is evaluated and compared with the existing system and it shows the better results Simulation results have shown that the decrement of PAPR. The out of band radiation of proposed scheme is less than original OFDM as shown in power spectral density (PSD) simulation result. All this simulation has been carried out in MATLAB simulation.