Title :
Nonlinear amplifier effects in communications systems
Author :
Liang, Cheng-Po ; Jong, Je-Hong ; Stark, Wayne E. ; East, Jack R.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
fDate :
8/1/1999 12:00:00 AM
Abstract :
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
Keywords :
adjacent channel interference; digital communication; modulation; nonlinear distortion; power amplifiers; ACI; adjacent channel interference; amplifier distortion; amplifier efficiency; class-AB amplifiers; complex digital communications systems; figure-of-merit; low-energy communications system design; modulation waveforms; nonlinear amplifier effects; power consumption; signal in-band interference; AWGN; Batteries; Bit error rate; Digital communication; Distortion measurement; Energy consumption; Frequency; Interchannel interference; Nonlinear distortion; Power amplifiers;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
