Title :
Modular computer simulation of advanced telecommunications modems
Author :
Turner, Steven E.
Author_Institution :
Motorola Inf. Syst. Group, Huntsville, AL, USA
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;
Conference_Titel :
Southeastcon '90. Proceedings., IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/SECON.1990.117832
