DocumentCode
1980818
Title
Tradeoff of spectral and energy efficiencies: Impact of power amplifier on OFDM systems
Author
Jingon Joung ; Chin Keong Ho ; Sumei Sun
Author_Institution
Inst. for Infocomm Res. (I2R), A*STAR, Singapore, Singapore
fYear
2012
fDate
3-7 Dec. 2012
Firstpage
3274
Lastpage
3279
Abstract
Spectral efficiency (SE) and energy efficiency (EE) are key measures for wireless communication systems. In OFDM systems, the non-linear effects and inefficiencies of power amplifiers (PAs) have posed practical challenges for system design. In this paper, we analyze the impact of the PA on the SE and EE tradeoff of OFDM systems. We also propose a PA switching technique which achieves a better SE-EE tradeoff, e.g., the EE can be improved by 323% with 15% SE reduction.
Keywords
OFDM modulation; energy conservation; power amplifiers; radio networks; OFDM systems; energy efficiencies; power amplifier; spectral efficiencies; wireless communication systems; Energy efficiency; OFDM; power amplifier; power amplifier switching; spectral efficiency;
fLanguage
English
Publisher
ieee
Conference_Titel
Global Communications Conference (GLOBECOM), 2012 IEEE
Conference_Location
Anaheim, CA
ISSN
1930-529X
Print_ISBN
978-1-4673-0920-2
Electronic_ISBN
1930-529X
Type
conf
DOI
10.1109/GLOCOM.2012.6503619
Filename
6503619
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