Analytical model of distributed computer network

The paper describes development, realisation and verification of the new an alytical model for the study of the basic parameters (end-to-end delay, per formance etc.) of distributed computer networks. The suggested model consid ers for every node of the computer network one part for own node activities (communication functions) and another one for modelling of the node channe l for data transmission. In case of using multiprocessor system as modern n ode communication processor, the model for own node activities is M/D/r sys tem and that for every node transmission channel is M/M/1 system. The analy tical model includes derivation of the correction factor to account the rea l non exponential nature of the input to individual transmission channels. The achieved results of the developed model are compared with the results o f the common analytical and simulation models to estimate the improvement. Likewise, the corrected analytical model was tested under various range of parameters, which influence the architecture of distributed computer networ k and which are interested from the view of practical using.