Title :
Analysis and compensation of nonlinearities in digital transmission systems
Author :
Biglieri, Ezio ; Barberis, Sergio ; Catena, Maurizio
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
1/1/1988 12:00:00 AM
Abstract :
The compensation of channel nonlinearities in digital radio communication systems is considered. A discrete system with memory, inserted between the source and the modulator, is designed with the aim of providing an equivalent channel with a distortionless linear part and no nonlinearities up to a given order. This design is based on a Volterra series model of the channel and on the theory of pth-order inverse systems. Since the compensator design is based on a mathematical model of the channel, the problem of model identification is considered. A modeling technique is described that uses computer simulation and orthogonal Volterra series. Several examples show the performance of this class of compensators
Keywords :
compensation; digital communication systems; digital simulation; radio systems; telecommunication channels; telecommunications computing; Volterra series model; channel nonlinearities; compensator design; computer simulation; digital radio communication systems; digital transmission systems; discrete system; distortionless linear part; equivalent channel; mathematical model; memory; model identification; modulator; orthogonal Volterra series; pth-order inverse systems; source; Additive white noise; Bit error rate; Constellation diagram; Mathematical model; Nonlinear distortion; Phase shift keying; Power amplifiers; Quadrature amplitude modulation; Radio frequency; Radiofrequency amplifiers;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
