2014/02/07 by Smita Jolania, Jolania, Smita, Sandeep Toshniwal +1
Computer Science · Engineering · Mathematics · #Advanced Signal Processing Techniques #FOS: Computer and information sciences #Information Theory (cs.IT) #PAPR reduction in OFDM #cs.IT #math.IT
paper · pdf · doi:10.48550/arxiv.1402.1759
5 pages,7 figures,Published with "International Journal of Engineering Trends and Technology (IJETT)"
arxiv created 2014/02/07 · openalex publication_date 2014/02/07 · arxiv updated 2014/02/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
OFDM signals demonstrates high fluctuations termed as Peak to Average Power Ratio (PAPR).The problem of OFDM is the frequent occurrence of high Peaks in the time domain signal which in turn reduces the efficiency of transmit high power amplifier.In this paper we discussed clipping and filtering technique which is easy to implement and reduces the amount of PAPR by clipping the peak of the maximum power signal.This technique clips the OFDM signal to a predefined threshold and uses a filter to eliminate the out-of-band radiation.Moreover, analysis of PAPR is given by varying different filters.The study is focused to reduce PAPR by iterative clipping and filtering method. The symbol error rate performances for different modulation techniques have been countered.Each clipping noise sample is multiplied by a window function(e.g.Hanning,Kaiser, or Hamming) to suppress the out-of-band noise.It is shown that clipping and different filtering techniques for improvement in the SER performance and provides further reduction in PAPR.