DigComT(tm), The Digital Communications Toolbox(tm), a Matlab Toolbox from Native Intelligence, has been shipping since Fall of '95.
DigComT provides a variety of useful tools for the analysis, design and development of modern digital communications systems, using the commercially available program Matlab(R); (required to use with DigComT). The system is designed to work on all the major platforms for which Matlab(R) is available (most notably, Unix, Macintosh and Windows). The toolbox consists of a large number of Matlab(R) ".m" files (source files of Matlab(R) code) as well as a number of ".mex" files (binary files of "C" code that is callable in Matlab(R)). The former files allow for the analysis of a variety of digital communications systems, while the latter allow for efficient simulation capabilities.
If you are interested in finding out more about DigComT, please visit our web site: