文章基本信息

标题：PAPR Reduction in OFDM System with π/4-QPSK Mapper Using Improved PTS Technique
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作者：Moftah Ali ; Raveendra K. Rao ; Vijay Parsa 等
期刊名称：Journal of Communications
印刷版ISSN：1796-2021
出版年度：2018
卷号：13
期号：4
页码：155-161
DOI：10.12720/jcm.13.4.155-161
语种：English
出版社：ACADEMY PUBLISHER
摘要：An Orthogonal Frequency Division Multiplexing (OFDM) system with π/4-QPSK (Quadrature Phase Shift Keying) mapper is considered. Partial Transmit Sequence (PTS) technique with an improved partitioning technique is proposed for PAPR reduction. Even though in PTS, the pseudo-random partitioning method yields the best PAPR reduction compared to adjacent and interleaved partitioning methods, there is a lack of structure in partitioning and hence increases system complexity both in the transmitter and the receiver. The proposed scheme offers a systematic and simple construction of adjacently partitioned sub-blocks using the Magic squares to pseudo-randomize them. Numerical results show that the proposed method outperforms both the adjacent and the interleaved partitioning methods and has nearly the same performance as that of pseudo-random partitioning method.
关键词：Orthogonal Frequency Division Multiplexing (OFDM);Peak to Average Power Ratio (PAPR);Partial Transmit Sequence (PTS);Partitioning;Adjacent;Interleaved;Pseudo-random