Estimations of loss characterisics of single-server queueing systems with non-homogeneous customers

A non-classical single-server queueing system with non-homogeneous customers having some random space requirement (capacity, volume) can be used as a model of a wide class of computer and communicating systems. We assume that the total customers capacity in the systems is limited by some constant value V > O that is called the value of memory capacity of the system. Service time of a customer generally depends on his capacity. For such systems we determine some estimators of stationary loss characteristics and compare the analitical results with ones obtained by simulation.