Presentation 2005/2/25
Effect of Peak Power Suppression and Adaptive Predistortion on Power Amplification of an OFCDM Signal
Naoki AIZAWA, Osamu MUTA, Yoshihiko AKAIWA, Mamoru SAWAHASHI,
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Abstract(in English) The OFCDM(Orthogonal Frequency and Code Division Multiplexing) system is receiving attention to achieve a high data rate transmission for multimedia communication. A problem with the system is that PAPR (Peak to Average Power Ratio) of the OFCDM signal increases as the number of carriers increases. In this paper, we investigate peak reducing methods for OFCDM system. We show that the peak reduction scheme and adaptive predistortion gives a high power efficiency and high linearity in power amplification of OFCDM signal.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) OFCDM / Peak power reduction / Adaptive predistorter
Paper # WBS2004-139,A・P2004-320,RCS2004-407,MoMuC2004-190,MW2004-317
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Committee RCS
Conference Date 2005/2/25(1days)
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Registration To Radio Communication Systems (RCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Effect of Peak Power Suppression and Adaptive Predistortion on Power Amplification of an OFCDM Signal
Sub Title (in English)
Keyword(1) OFCDM
Keyword(2) Peak power reduction
Keyword(3) Adaptive predistorter
1st Author's Name Naoki AIZAWA
1st Author's Affiliation Graduate School of Information & Electrial Engineering, Kyushu University()
2nd Author's Name Osamu MUTA
2nd Author's Affiliation Graduate School of Information & Electrial Engineering, Kyushu University
3rd Author's Name Yoshihiko AKAIWA
3rd Author's Affiliation Graduate School of Information & Electrial Engineering, Kyushu University
4th Author's Name Mamoru SAWAHASHI
4th Author's Affiliation IP Radio Network Development Department, NTT DoCoMo, Inc
Date 2005/2/25
Paper # WBS2004-139,A・P2004-320,RCS2004-407,MoMuC2004-190,MW2004-317
Volume (vol) vol.104
Number (no) 680
Page pp.pp.-
#Pages 5
Date of Issue