Treffer: ANALYTICAL MODELS OF DISTRIBUTED COMPUTER BASED COMMUNICATION NETWORKS

The rapid rate of growth of computer based communication systems (e.g. distributed computer networks, mobile data networks) has resulted in a renewed and intensive interest in modelling of such systems. Efficient design of their service facilities leads to the sharing of resources among users. Such public shared networks are largely oversubscribed by independent users, who make random demands on the network resources. The optimum allocation of resources to meet such demands and the proper settlement of contention, when demands exceed the capacity of the resources, constitute the problem of being able to understand and to predict system behaviour. To behaviour analysis we can use both analytical and simulation methods. Modelling and simulation are methods which are commonly used by performance analysts to represent constraints and optimise performance. The possible application of analytical queueing theory results in behaviour analysis of computer based communication networks belongs to the preferred method in comparison to the simulation method, because of their ability to analyse also the very large networks. The use of analytical methods allow us to calculate effectively the various values of parameters in equilibrium including the total input intensity of incoming data units to every node of transport network even for the more realistic models than the used M/M/1 systems