Presentation	2003/5/16 On Power Emdency of Linear Modulation and OFDM Signals Hideki OCHIAI,
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Abstract(in English)	Band-limited single-carrier signals with various linear modulation formats as weH as OFDM signals are compared in terms of the power amplifier efficiency. Since there is a trade-off between power efficiency and nonlinear distortion, we first develop a measure that only requires the knowledge of the first order statistic of the instantaneous power of the signals to be evaluated. Subsequent analysis and comparison among these signals reveals that the OFDM signal shows worst efficiency as expected, but this efficiency can be significantly alleviated and even approach that of single-carrier signals by using peak power reduction techniques such as clipping and filtering.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	power amplifier / OFDM / single-carrier / linear modulation / power efficiency
Paper #	RCS2003-43
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Conference Information
Committee	RCS
Conference Date	2003/5/16(1days)
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Paper Information
Registration To	Radio Communication Systems (RCS)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	On Power Emdency of Linear Modulation and OFDM Signals
Sub Title (in English)
Keyword(1)	power amplifier
Keyword(2)	OFDM
Keyword(3)	single-carrier
Keyword(4)	linear modulation
Keyword(5)	power efficiency
1st Author's Name	Hideki OCHIAI
1st Author's Affiliation	Division of Physics, Electrical and Computer Engineering, Graduate School of Engineering()
Date	2003/5/16
Paper #	RCS2003-43
Volume (vol)	vol.103
Number (no)	66
Page	pp.pp.-
#Pages	6
Date of Issue