Priority mechanism is an invaluable scheduling method that allows customers
to receive different quality of service. Service priority is clearly today a
main feature of the operation of any manufacturing system. We are interested
by an M1,M2/G1,G2/1 priority retrial queue with pre-emptive resume policy.
For model in question, we discuss the problem of ergodicity and, by using the
method of supplementary variables, find the partial generating functions of
the steady state system state distribution. Moreover, some pertinent
performance measures are obtained and numerical study is also performed.
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