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OFDM signals demonstrates high fluctuations termed as Peak to Average PowerRatio (PAPR).The problem of OFDM is the frequent occurrence of high Peaks inthe time domain signal which in turn reduces the efficiency of transmit highpower amplifier.In this paper we discussed clipping and filtering techniquewhich is easy to implement and reduces the amount of PAPR by clipping the peakof the maximum power signal.This technique clips the OFDM signal to apredefined threshold and uses a filter to eliminate the out-of-bandradiation.Moreover, analysis of PAPR is given by varying different filters.Thestudy is focused to reduce PAPR by iterative clipping and filtering method. Thesymbol error rate performances for different modulation techniques have beencountered.Each clipping noise sample is multiplied by a windowfunction(e.g.Hanning,Kaiser, or Hamming) to suppress the out-of-band noise.Itis shown that clipping and different filtering techniques for improvement inthe SER performance and provides further reduction in PAPR.

Performance Improvement of OFDM System Using Iterative Signal Clipping With Various Window Techniques for PAPR Reduction