文章基本信息

标题：Adaptive Companding as a PAPR Reduction Technique of an OFDM Signal
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作者：Mahmuda, Subaha ; Haque, Tabassum N. ; Ahmed, Feroz 等
期刊名称：Journal of Communications
印刷版ISSN：1796-2021
出版年度：2012
卷号：7
期号：11
页码：803-807
DOI：10.4304/jcm.7.11.803-807
语种：English
出版社：ACADEMY PUBLISHER
摘要：In this paper, a new adaptive PAPR reduction scheme is proposed by which the PAPR of the OFDM signal can be reduced to keep the value lower than a predefined threshold level. A conventional companding is used as a technique to reduce the PAPR of the OFDM signal. If the PAPR of the OFDM signal is higher than any predefined level, one or more times companding operations are performed until the PAPR becomes lower than that level. On top of that, no companding is applied if the signal’s PAPR is lower than the predefined level. However, there is a trade-off between the improvement of the PAPR and BER which may be optimized based on any specific application requirements
关键词：orthogonal frequency division multiplexing; peak-to-average power ratio; bit error rate; complementary cumulative distribution function; adaptive companding