Title :
Analysis of 16-QAM over a nonlinear channel
Author :
Chrisikos, George
Author_Institution :
Commun. Syst. Subdiv., Aerosp. Corp., Los Angeles, CA, USA
Abstract :
This paper derives the symbol error probability of a 16-QAM modulation scheme that undergoes nonlinear distortion as a result of power amplification. The performance degradation is computed when the receiver does not compensate for the amplitude saturation effects and a relatively simple method that does not resort to complex processing and equalization is proposed and analyzed to compensate for the nonlinear distortion. The exact symbol error probability is derived analytically and it is shown that the compensated system is a viable technique for non-constant envelope higher order modulation schemes
Keywords :
AWGN; amplification; cellular radio; digital radio; error statistics; nonlinear distortion; power amplifiers; quadrature amplitude modulation; radio receivers; telecommunication channels; 16-QAM; AWGN; amplitude saturation effects; cellular base stations; compensated system; digital satellite communication systems; exact symbol error probability; nonconstant envelope higher order modulation; nonlinear channel; nonlinear distortion compensation; performance degradation; power amplification; quadrature amplitude modulation; receiver algorithm; wireless communication systems; AWGN; Amplitude modulation; Computer errors; Degradation; Error probability; Nonlinear distortion; Performance analysis; Power amplifiers; Quadrature amplitude modulation; Transmitters;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-4872-9
DOI :
10.1109/PIMRC.1998.731409
