文章基本信息

标题：Peak to Average Power Ratio (PAPR) Reduction in OFDM for Optic Communications based on Conventional Selected Mapping
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作者：Ousama M Abdulwanes Awad ; Muhammed Fatih Kili?aslan ; Javad Rahebi 等
期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2019
卷号：19
期号：3
页码：11-15
出版社：International Journal of Computer Science and Network Security
摘要：OFDM is a modulation technique that utilizes the optic communication band efficiently by dividing the high-speed information sequence into parallel arms and lifting the frequency selectivity of the multi-carrier channel at the same time and using vertically selected carriers at the same time. Selected mapping is an accurate method for reducing peak to average power ratio from orthogonal frequency division multiplexing. A fundamental weakness of selected mapping is the high computational complexity. To reduce the complexity of the selected mapping, the real and imaginary part of the orthogonal frequency division multiplexing signals is treated separately. Numerical sequences and even real and imaginary elements are obtained using Fourier transform properties. More candidates are produced with a different combination of all the following sequences. The proposed scheme produces less computational complexity using the IFFT algorithm for M4 equations only. The simulation results show that the proposed design reduces the good performance of peak to average power ratio and also reduces computational complexity compared with the selected mapping design.
关键词：Orthogonal Frequency Division Multiplexing; Conventional Selected Mapping; Fast Fourier Transform.