Optimization of future telecommunication network structures

The structure of communication networks was examined in order to determine the suitability for providing new services. The impact of recent advances in telecommunications technology was also taken into consideration. Network structures are classified by means of graph theory, their properties are discussed, and new structures are compared with those being used nowadays. Looking at local networks, special attention is directed towards time division multiplex systems with decentralized switching and multiplex access. Using models, comments on the integration of several services into one network are made. Computer programs as an aid for planning, especially for long distance networks, were developed. Features, such as reliability, permeance, vulnerability, line, cable and duct length, ability to extend the network, and economy were taken into account. The computer programs, also for graphic display dialogue, are listed at the end of the report.