Interactive Communication Systems Modeling Study.

摘要

This report deals with an effort to develop an interactive computer model for analysis and design of digital communications systems. In this report concepts are formulated and described for a Model for Interactive design and Analysis of Communication Systems (MIDACS). Methods of approach for concept formulation are described, examples of previous modeling approaches are presented, characteristics of the MIDACS concept are documented, and a representative computer model is described. Various interactive approaches are shown along with general hardware and software requirements. The formulated interactive concept includes the computer, display devices, and other input/output devices. Mathematical modeling approaches are described including standard Monte Carlo techniques, deterministic methods, and analytical models. The recommended modeling structure includes a modified Monte Carlo technique to minimize computer time for certain communication system performance measures. A multi-level analysis structure is recommended which includes a hierarchy for the physical model combined with a hierarchy of analysis levels which permits greatest computer use flexibility. The recommended programming structure is described including the development chain, software composition, and approach to software development. Function and system library elements are identified and MIDACS hardware requirements are stated. (Author)