PAPR Reduction Performance for LTE OFDM Systems with Different Techniques

Orthogonal Frequency Division Multiplexing (OFDM) is one of the Strong candidate for Transmission of high data rate due to Multicarrier Modulation. One of the challenging Issue of OFDM is its high Peak to Average Power Ratio (PAPR) which cause large number of sub-carriers, that make restrictions for practical applications. This Paper discusses different PAPR Reduction techniques in OFDM. The Selective Mapping, The DFT-spreading technique it is known as the Single Carrier-Frequency Division Multiple Access (SC-FDMA), which is adopted for uplink transmission in the 3rd Generation Partnership Project (3GPP) LTE standard and Partial Transmit sequence Technique is used in this paper. .In this paper, we mainly investigate the PAPR reduction performance using PTS, this method is sub-entities of phase rotation scheme. A new algorithm using PTS technique, We also show that a SCFDMA system with Interleaved-FDMA or Localized-FDMA performs better than OrthogonalFDMA in the uplink direction where transmitter power efficiency is of great importance. This shows better PAPR reduction compared to the existing algorithms is proposed. Results are verified using MATLAB software.