Power Efficiency Improvements through Peak-to-Average Power Ratio Reduction and Power Amplifier Linearization

Power Efficiency Improvements through Peak-to-Average Power Ratio Reduction and Power Amplifier Linearization

Many modern communication signal formats, such as orthogonal frequency-division multiplexing (OFDM) and code-division multiple access (CDMA), have high peak-to-average power ratios (PARs). A signal with a high PAR not only is vulnerable in the presence of nonlinear components such as power amplifier...

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Bibliographic Details
Main Authors: Hua Qian, G. Tong Zhou, Ning Chen
Format: Article
Language:English
Published: SpringerOpen 2007-01-01
Series:EURASIP Journal on Advances in Signal Processing
Online Access:http://dx.doi.org/10.1155/2007/20463
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spelling doaj-3e821a4697474f9faefd50dc7ceabbdc2020-11-25T00:14:27ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802007-01-01200710.1155/2007/20463Power Efficiency Improvements through Peak-to-Average Power Ratio Reduction and Power Amplifier LinearizationHua QianG. Tong ZhouNing ChenMany modern communication signal formats, such as orthogonal frequency-division multiplexing (OFDM) and code-division multiple access (CDMA), have high peak-to-average power ratios (PARs). A signal with a high PAR not only is vulnerable in the presence of nonlinear components such as power amplifiers (PAs), but also leads to low transmission power efficiency. Selected mapping (SLM) and clipping are well-known PAR reduction techniques. We propose to combine SLM with threshold clipping and digital baseband predistortion to improve the overall efficiency of the transmission system. Testbed experiments demonstrate the effectiveness of the proposed approach. http://dx.doi.org/10.1155/2007/20463
collection DOAJ
language English
format Article
sources DOAJ
author Hua Qian
G. Tong Zhou
Ning Chen
spellingShingle Hua Qian
G. Tong Zhou
Ning Chen
Power Efficiency Improvements through Peak-to-Average Power Ratio Reduction and Power Amplifier Linearization
EURASIP Journal on Advances in Signal Processing
author_facet Hua Qian
G. Tong Zhou
Ning Chen
author_sort Hua Qian
title Power Efficiency Improvements through Peak-to-Average Power Ratio Reduction and Power Amplifier Linearization
title_short Power Efficiency Improvements through Peak-to-Average Power Ratio Reduction and Power Amplifier Linearization
title_full Power Efficiency Improvements through Peak-to-Average Power Ratio Reduction and Power Amplifier Linearization
title_fullStr Power Efficiency Improvements through Peak-to-Average Power Ratio Reduction and Power Amplifier Linearization
title_full_unstemmed Power Efficiency Improvements through Peak-to-Average Power Ratio Reduction and Power Amplifier Linearization
title_sort power efficiency improvements through peak-to-average power ratio reduction and power amplifier linearization
publisher SpringerOpen
series EURASIP Journal on Advances in Signal Processing
issn 1687-6172
1687-6180
publishDate 2007-01-01
description Many modern communication signal formats, such as orthogonal frequency-division multiplexing (OFDM) and code-division multiple access (CDMA), have high peak-to-average power ratios (PARs). A signal with a high PAR not only is vulnerable in the presence of nonlinear components such as power amplifiers (PAs), but also leads to low transmission power efficiency. Selected mapping (SLM) and clipping are well-known PAR reduction techniques. We propose to combine SLM with threshold clipping and digital baseband predistortion to improve the overall efficiency of the transmission system. Testbed experiments demonstrate the effectiveness of the proposed approach.
url http://dx.doi.org/10.1155/2007/20463
work_keys_str_mv AT huaqian powerefficiencyimprovementsthroughpeaktoaveragepowerratioreductionandpoweramplifierlinearization
AT gtongzhou powerefficiencyimprovementsthroughpeaktoaveragepowerratioreductionandpoweramplifierlinearization
AT ningchen powerefficiencyimprovementsthroughpeaktoaveragepowerratioreductionandpoweramplifierlinearization
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