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An $$M/M/2$$ queueing system with heterogeneous servers and multiple vacations. (English) Zbl 1166.90336
Summary: A Markovian queue with two heterogeneous servers and multiple vacations has been studied. For this system, the stationary queue length distribution and mean system size have been obtained by using matrix geometric method. The busy period analysis of the system and mean waiting time distribution are discussed. Extensive numerical illustrations are provided.

MSC:
 90B25 Reliability, availability, maintenance, inspection in operations research 60K25 Queueing theory (aspects of probability theory)
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References:
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