Abstract
Consider an M/G/1 queue such that over and above the first ‘essential service’ having a general service time distribution, a unit may need a second ‘optional service’ with another independent general service time. A unit may depart from the system either after the first essential service with probability (1−r) or at the end of the first service may immediately go for a second service with probability r (0≤r≤1). This is a generalization of a recent paper considered by Madan [5].
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Medhi, J. A Single Server Poisson Input Queue with a Second Optional Channel. Queueing Systems 42, 239–242 (2002). https://doi.org/10.1023/A:1020519830116
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DOI: https://doi.org/10.1023/A:1020519830116