Most of the studies queuing theory, which are useful in our daily life has been investigated by many researchers. The present research is study pre-emptive priority system consisting two serial channels stochastic environment. impatient behavior customer’s will be discussed with exponential service distribution and Poisson arrivals. Higher customers have over low customers. G.F. technique used ...

We consider the virtual queueing time (vqt, also known as work-in-system, or virtual-delay) process in an M/G/s queue with impatient customers. We focus on the vqt-based balking model and relate it to reneging behavior of impatient customers in terms of the steady-state distribution of the vqt process. We construct a single-server system, analyze its operating characteristics, and use them to a...

This paper deals with a M/M/c queueing system waiting servers, balking, reneging, and K-variant working vacations subjected to Bernoulli schedule vacation interruption. Whenever the is emptied, servers wait for while before synchronously going on during which services are offered lower rate. We obtain steady-state probabilities of using matrix-geometric method. In addition, we derive important ...

One of the problems often encountered in daily life is waiting lines service systems. A long line a system usually leads to customers leaving system, resulting losses for provider. The general clinic Green Care one clinics with First Come Served discipline and limited capacity 30 patient. experiences patient congestion while service, which causes some renege due time. This study discusses at Ge...