Intersymbol interference due to linear and nonlinear distortion

Author

Metzger, Kurt ; Valentin, Rolf

Author_Institution

Deutsche Telekom AG, Darmstadt, Germany

Volume

44

Issue

7

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

809

Lastpage

816

Abstract

The paper provides a recursion model for the calculation of the probability density function (pdf) of intersymbol interference (ISI) which is caused by the combined effect of linear channel dispersion and of nonlinear distortion. The nonlinearity introduces statistical interdependencies between the interfering symbols and these dependencies are implicitly taken into account in a trellis-structured recursion rule. The results were verified by time consuming Monte Carlo simulation and show, e.g., that the nonlinear characteristic of a high power amplifier (HPA) reduces in some cases the error probability caused by the linear dispersion. Surprisingly, the ISI due to the nonlinear amplifier is increased in the case of offset modulation

Keywords

Monte Carlo methods; digital communication; error statistics; intersymbol interference; modulation; power amplifiers; probability; recursive functions; telecommunication channels; ISI; Monte Carlo simulation; error probability; high power amplifier; intersymbol interference; linear channel dispersion; linear distortion; nonlinear characteristic; nonlinear distortion; offset modulation; probability density function; recursion model; statistical interdependencies; trellis-structured recursion rule; Baseband; Error probability; Frequency; High power amplifiers; Intersymbol interference; Matched filters; Monte Carlo methods; Nonlinear distortion; Probability density function; Quadrature amplitude modulation;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.508300

Filename

508300