Title :
A Performance Study of NLA 64-State QAM
Author :
Hill, Tricia ; Feher, Kamilo
Author_Institution :
Farinon Canada Ltd., Dorval, P.Q., Canada
fDate :
6/1/1983 12:00:00 AM
Abstract :
The performance of a modulation technique which is both power and bandwidth efficient, termed nonlinearly amplified 64-state quadrature amplitude modulation (NLA 64-state QAM), is studied. To assess the effects of selective fading and/or system filter imperfections, computer simulated results are presented which show the sensitivity of the modulation technique to typical group delay and amplitude distortions. In addition to the above-mentioned results, the effects of modulator imperfections in the power level combining on the Peperformance are evaluated.
Keywords :
Communication systems performance; Fading channels; Quadrature amplitude modulation; Amplitude modulation; Bandwidth; Computational modeling; Computer simulation; Delay effects; Filters; Nonlinear distortion; Power amplifiers; Quadrature amplitude modulation; Quadrature phase shift keying;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOM.1983.1095894
