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标题：Reduction of Peak to Average Power Ratio Using Weighted OFDM
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作者：Bushra Zareen I. A. Khan ; Shirish L. Kotgire
期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2017
卷号：5
期号：11
页码：17097
DOI：10.15680/IJIRCCE.2017.0511077
出版社：S&S Publications
摘要：Besides many advantages of Orthogonal Frequency Division Multiplexing (OFDM), Peak to AveragePower Ratio (PAPR) is the major problem of this system. To overcome this drawback many different techniques areused, some are distortion-less techniques and, some are distortion techniques. In this paper, PAPR reduction techniquebased on weighted OFDM signal is proposed to reduce PAPR without distortion. In the proposed scheme a weight isimposed on the discrete OFDM signal at the transmitter, whereas original signal can be recovered at the receiver byremoving the weights. According to the numerical results, the PAPR of weighted OFDM signal is smaller than that ofClipping and Filtering (C&F) method also Bit Error Rate (BER) performance is improved. The proposed method issimpler than C&F method. Also for a better perspective weighted OFDM scheme is compared with the conventionalmethod of Partial Transmit Sequences (PTS). Numerical computation of all the methods and comparisons are done byMATLAB simulations.
关键词：Orthogonal Frequency Division Multiplexing (OFDM); Weighted OFDM; Clipping and Filtering;(C&F); Partial Transmit Sequences (PTS); Peak to Average Power Ratio (PAPR); Bit Error Rate (BER).