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

Prittu Ann Thomas, M. Mathurakani

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

Keywords: OFDM, PAPR, SC-FDMA, Localized FDMA, Interleaved FDMA, SC-FDMA-CDMA

DOI: https://doi.org/10.15623/ijret.2014.0313011