The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Isyarat pemultipleksan bahagian frekuensi ortogon (OFDM) mengalami herotan tak linear dalam pemancar, khususnya dalam penguat kuasa tinggi. Kertas kerja ini mencadangkan teknik pampasan herotan tak linear untuk isyarat OFDM, yang menggabungkan praherotan jalur asas dengan OFDM kuasa puncak malar (CP-OFDM). CP-OFDM membetulkan amplitud puncak sampul surat kepada nilai malar sambil mengekalkan kelinearan output transformasi Fourier pantas songsang (IFFT); akibatnya, predistortor jalur asas mengimbangi sepenuhnya herotan tak linear. Hasil simulasi dan eksperimen mengesahkan bahawa teknik yang dicadangkan mengurangkan pelepasan kuasa luar jalur dan gangguan saluran bersebelahan (ACI) masing-masing lebih daripada 10 dB dengan ketara.
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Salinan
Shuta UWANO, Yoichi MATSUMOTO, Masato MIZOGUCHI, Masahiro UMEHIRA, "Linearized Constant Peak-Power Coded OFDM Transmission for Broadband Wireless Access Systems" in IEICE TRANSACTIONS on Communications,
vol. E82-B, no. 12, pp. 1932-1938, December 1999, doi: .
Abstract: Orthogonal frequency division multiplexing (OFDM) signals suffer nonlinear distortion within the transmitter, in the high-power amplifiers in particular. This paper proposes a nonlinear distortion compensation technique for OFDM signals, which incorporates a baseband predistortion with a constant peak-power OFDM (CP-OFDM). CP-OFDM fixes the envelope-peak amplitude to a constant value while maintaining the linearity of the inverse fast Fourier transform (IFFT) outputs; consequently, the baseband predistorter entirely compensates the nonlinear distortion. Simulation and experimental results verify that the proposed technique significantly reduces out-of-band power emission and adjacent channel interference (ACI) more than 10 dB respectively.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e82-b_12_1932/_p
Salinan
@ARTICLE{e82-b_12_1932,
author={Shuta UWANO, Yoichi MATSUMOTO, Masato MIZOGUCHI, Masahiro UMEHIRA, },
journal={IEICE TRANSACTIONS on Communications},
title={Linearized Constant Peak-Power Coded OFDM Transmission for Broadband Wireless Access Systems},
year={1999},
volume={E82-B},
number={12},
pages={1932-1938},
abstract={Orthogonal frequency division multiplexing (OFDM) signals suffer nonlinear distortion within the transmitter, in the high-power amplifiers in particular. This paper proposes a nonlinear distortion compensation technique for OFDM signals, which incorporates a baseband predistortion with a constant peak-power OFDM (CP-OFDM). CP-OFDM fixes the envelope-peak amplitude to a constant value while maintaining the linearity of the inverse fast Fourier transform (IFFT) outputs; consequently, the baseband predistorter entirely compensates the nonlinear distortion. Simulation and experimental results verify that the proposed technique significantly reduces out-of-band power emission and adjacent channel interference (ACI) more than 10 dB respectively.},
keywords={},
doi={},
ISSN={},
month={December},}
Salinan
TY - JOUR
TI - Linearized Constant Peak-Power Coded OFDM Transmission for Broadband Wireless Access Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 1932
EP - 1938
AU - Shuta UWANO
AU - Yoichi MATSUMOTO
AU - Masato MIZOGUCHI
AU - Masahiro UMEHIRA
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E82-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 1999
AB - Orthogonal frequency division multiplexing (OFDM) signals suffer nonlinear distortion within the transmitter, in the high-power amplifiers in particular. This paper proposes a nonlinear distortion compensation technique for OFDM signals, which incorporates a baseband predistortion with a constant peak-power OFDM (CP-OFDM). CP-OFDM fixes the envelope-peak amplitude to a constant value while maintaining the linearity of the inverse fast Fourier transform (IFFT) outputs; consequently, the baseband predistorter entirely compensates the nonlinear distortion. Simulation and experimental results verify that the proposed technique significantly reduces out-of-band power emission and adjacent channel interference (ACI) more than 10 dB respectively.
ER -