System SM2/MSP/1/(n1,n2) with Discipline of Random Selection from Queue and Isolated Request Accumulators

A single-line queueing system is considered with semi-Markov input stream of two type requests, Markov process of queueing requests, isolated request accumulators of finite capacity and a discipline of random selection of a request from the queue. For this system the stationary distributions of main characteristics of queueing are found with the help of the method of the embedded Markov chain.