Modular computer simulation of advanced telecommunications modems

Author

Turner, Steven E.

Author_Institution

Motorola Inf. Syst. Group, Huntsville, AL, USA

fYear

1990

fDate

1-4 Apr 1990

Firstpage

353

Abstract

A modular technique for modelling and simulating advanced telecommunications modems by computer is described. This technique is a unique FORTRAN simulation tool called MODSIM developed for modelling telecommunications modems and their associated channels. Modems ranging in data rate from 300 b/s to 19200 b/s can be modelled using the MODSIM technique. A detailed description of the simulation program is included. Special attention is given to some of the more challenging simulation areas, such as the echo canceller and adaptive equalizer modules. A specific example of how MODSIM was used to model the CCITT V.32 9600-b/s echo-cancelling modem is discussed. Performance results predicted by the simulation are provided and are compared with theoretical performance characteristics for this modem

Keywords

digital simulation; modems; telecommunication channels; telecommunications computing; 300 to 19200 bit/s; CCITT V.32 echo-cancelling modem; FORTRAN simulation tool; MODSIM; adaptive equalizer modules; advanced telecommunications modems; channels; echo canceller modules; modular computer simulation; performance; simulation program; Algorithms; Circuit simulation; Computational modeling; Computer simulation; Data systems; Frequency shift keying; Libraries; Modems; Telephony; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '90. Proceedings., IEEE

Conference_Location

New Orleans, LA

Type

conf

DOI

10.1109/SECON.1990.117832

Filename

117832