文章基本信息

标题：PAPR REDUCTION TECHNIQUES IN OFDM SYSTEMS USING DCT AND IDCT
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作者：S. SUJATHA P. DANANJAYAN
期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2014
卷号：64
期号：3
出版社：Journal of Theoretical and Applied
摘要：Orthogonal frequency division multiplexing (OFDM) has gained much popularity in the field of wireless communication because of its ability to transfer the data at higher rate, high bandwidth efficiency and its robustness to multipath. Since OFDM has high Peak to Average Power Ratio (PAPR) as major limitation, many techniques were proposed to reduce it. In this paper, a DCT based modified selective mapping (SLM) technique is proposed to reduce the PAPR of the transmitted signal and its PAPR reduction performance compared with that of IFFT based modified SLM technique, IDCT based modified SLM technique and IDST based modified SLM technique. The proposed technique for PAPR reduction grants an improvement over the existing IFFT.
关键词：OFDM; PAPR; Selective Level Mapping; Discrete Cosine Transform; IDCT; IDST