The Relative Study of Peak-to-Average Power Ratio Reduction Techniques for LTE OFDM System

Orthogonal frequency division multiplexing (OFDM) is one of the widely used modulation techniques for nonlinear communication systems. It offers high data rate, spectral efficiency, robustness to multi path fading, simple receiver design, etc. However, implementation of this system encompasses several difficulties. One of the major setback is the high peak-to-average power ratio(PAPR) snag in multicarrier transmission system. This leads to power inefficiency in RF section of the transmitter, inter carrier interference and bit error rate performance degradation. Minimum PAPR will allow a higher average power to be transmitted for a fixed peak power which in turn improves overall SNR at the receiver. This report looks through various procedures proposed for PAPR reduction schemes for actualizing the low computational complexity which is necessary for real time applications in wireless communication systems.