In the present study, we analyze the multi-channel service system with ordered entryfrom finite-source and finite-storage at each channel. The arrival and service rates are assumedto be state dependent. The steady state probabilities of the system are obtained by usingChapmann-Kolmogorov equations. Some other performance indices viz. utilization of servers,expected number of units in the system...

In cellular systems there is usually an overlap cell coverage area (area covered by two or more base stations) which has valuable practical applications. Particularly, it permits the queuing of handover requests as a handover prioritization scheme. The modeling of the sojourn time in the overlap area is a topic which is not sufficiently explored, and even less is the effect it may have on the p...

This paper deals with finite capacity single server queuing system with vacations. Vacation starts at rate nu if the system is empty. Also the server takes another vacation if upon his arrival to the system, finds the system empty. Customers arrive in the system in Poisson fashion at rate lamda0 during vacation, faster rate lamdaf during active service and slower rate lamdas during the breakdow...

We consider queuing systems as models of distance learning system we analyze how characteristics of business process in the system affect on throughput and on learning outcomes. The processes of executing tasks and tasks validation process are the key processes in the distance learning. A model of the process performed by a student is a queuing system with refusals. A model of the process perfo...

This paper proposes a procedure for constructing the membership functions of the performance measures in a finite capacity loss queuing system with arrival rate and service rate being fuzzy numbers. To investigate the performance measures of the finite capacity loss queuing system a pair of mathematical non linear programme are formulated to calculate the upper and lower bound of system charact...

In this article, we survey machine repair problems (MRP) with an emphasis on historical developments of queuing models of practical importance. The survey proceeds historically, starting with developments in 1985, when the first published review on machine interference models appeared. We attempt to elaborate some basic MRP models of the real life congestion situations. The brief survey of some...