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Review Paper on PAPR Reduction Techniques in OFDM System
Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier transmission scheme. This is used in the fourth generation wireless communication. The main advantage of OFDM, cross talk between the sub channels is eliminated and inter carrierbands are not required. Coin have two sides similarly OFDM have a some advantages and disadvantages, according to this quotation there have a major drawback arises in the OFDM is known as a PAPR (Peak to average power ratio). PAPR reduction techniques, based on computational complexity, bandwidth expansion, spectral spillage and performance. PAPR problem is reduced by the techniques which improves the signaling same as the OFDM. It improve the BER (Bit error rate) through these techniques.
Clipping and Filtering, CCDF (Complementary Cumulative Distribution Functions) Peak Windowing Multicarrier Modulation, HPA (High Power filter), PTS, SLM (Selective Mapping Technique).
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