Nonlinear amplifier effects in communications systems

This paper introduces a figure-of-merit to investigate tradeoffs between amplifiers and modulation waveforms in complex digital communications systems. Class-AB amplifiers are investigated with a variety of modulation schemes to better understand the relations between amplifier efficiency, amplifier...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 1999-08, Vol.47 (8), p.1461-1466
Main Authors: Cheng-Po Liang, Je-Hong Jong, Stark, W.E., East, J.R.
Format: Article
Language:English
Subjects:
Amplifiers
AWGN
Batteries
Bit error rate
Channels
Communication systems
Digital communication
Distortion
Distortion measurement
Energy consumption
Frequency
Interchannel interference
Microwaves
Modulation
Nonlinear distortion
Power amplifiers
Power consumption
Waveforms
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Summary:This paper introduces a figure-of-merit to investigate tradeoffs between amplifiers and modulation waveforms in complex digital communications systems. Class-AB amplifiers are investigated with a variety of modulation schemes to better understand the relations between amplifier efficiency, amplifier distortion, signal in-band and adjacent channel interference, and power consumption. The goal is to better understand the tradeoffs needed to design low-energy communications systems.
ISSN:0018-9480
1557-9670
DOI:10.1109/22.780395