Performance of adaptive Volterra equalizers on nonlinear satellite channels

Author

Gutierrez, Alberto ; Ryan, William E.

Author_Institution

Center for Space Telemetering & Telecommun. Syst., New Mexico State Univ., Las Cruces, NM, USA

Volume

1

fYear

1995

fDate

18-22 Jun 1995

Firstpage

488

Abstract

Adaptive nonlinear Volterra equalizers are developed for compensation of nonlinear signal distortion in a satellite communications channel. The equalizers do not require a Volterra characterization of the channel and adaption of the weights is accomplished with the least-mean square (LMS) algorithm. Convergence of the equalizers are discussed as well as a multiple-step LMS adaption method which improves the convergence characteristics. The authors compare the performance and complexity of these equalizers to that of a linear equalizer for QPSK, 8PSK and 16QAM

Keywords

adaptive equalisers; communication complexity; convergence of numerical methods; digital radio; electric distortion; least mean squares methods; quadrature amplitude modulation; quadrature phase shift keying; satellite communication; 16QAM; 8PSK; QPSK; adaptive Volterra equalizers; compensation; complexity; convergence; least-mean square algorithm; multiple-step LMS adaption method; nonlinear Volterra equalizers; nonlinear satellite channels; nonlinear signal distortion; performance; Band pass filters; Convergence; Equalizers; Intersymbol interference; Nonlinear distortion; Nonlinear filters; Quadrature amplitude modulation; Satellite broadcasting; Satellite communication; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1995. ICC '95 Seattle, 'Gateway to Globalization', 1995 IEEE International Conference on

Conference_Location

Seattle, WA

Print_ISBN

0-7803-2486-2

Type

conf

DOI

10.1109/ICC.1995.525217

Filename

525217