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In this paper, a survey on different modulation sch emes having lowest peak to average power ratio (PAP R) value for use in uplink communication has been studied. OFDM has become the popular modulation choice for high data rate wirel ess communication systems. It can provide multi-path delay spread tol erance and is robust to channel dispersions. But on e of the major limitations of OFDM is the large variation in signal amplitude whi ch gives it a high PAPR. OFDM signals with high PAP R will suffer from nonlinear distortion due to non-ideal behavior of High Power amplifiers as well as it is detrimental to b attery powered devices like mobile phones which are power limited .SC-FDMA was found to have a better PAPR reduction than OFDMA an d has become modulation choice for uplink communication in Long Term Evolution (LTE).

SC-FDMA -AN EFFICIENT TECHNIQUE FOR PAPR REDUCTION IN UPLINK COMMUNICATION SYSTEMS - A SURVEY