Discrete Hartley matrix transform precoding-based OFDM system to reduce the high PAPR
Author(s) -
Abbas Ali Sharifi
Publication year - 2018
Publication title -
ict express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.733
H-Index - 22
ISSN - 2405-9595
DOI - 10.1016/j.icte.2018.07.001
Subject(s) - precoding , orthogonal frequency division multiplexing , mathematics , hadamard transform , discrete cosine transform , algorithm , matrix (chemical analysis) , dft matrix , electronic engineering , computer science , mimo , symmetric matrix , statistics , engineering , beamforming , mathematical analysis , state transition matrix , materials science , composite material , eigenvalues and eigenvectors , physics , quantum mechanics , estimator , artificial intelligence , image (mathematics)
The high peak-to-average power ratio (PAPR) is one of the major drawbacks of the orthogonal frequency division multiplexing (OFDM) systems that make non-linear distortion in practical implementation of high power amplifier (HPA). In this study, the performance of discrete Hartley matrix transform (DHMT) in precoding based OFDM system is analyzed to minimize the high PAPR. We demonstrate that the DHMT precoding method eliminates the multicarrier assumption in a special circumstance. The remarkable results are achieved and compared with conventional OFDM, Walsh–Hadamard matrix transform (WHMT), discrete cosine matrix transform (DCMT) and Vandermonde-like matrix transform (VLMT) in precoding based OFDM signals.
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