Publications
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System occupancy in a multiclass batch-service queueing system with limited variable service capacity Ghent University
Impact of class clustering and global FCFS service discipline on the system occupancy of a two-class queueing model with two dedicated servers Ghent University
This paper considers a continuous-time queueing model with two types (classes) of customers each having their own dedicated server with exponential service times. The system adopts a "global FCFS" service discipline, i.e., all arriving customers are accommodated in one single FCFS queue, regardless of their types. "Class clustering", i.e., customers of any given type may (or may not) have a tendency to "arrive back-to-back", is a concept that we ...
Impact of blocking when customers of different classes are accommodated in one common queue Ghent University
In this paper, situations are investigated where customers requiring different types of service, each provided by distinct servers, are accommodated in one common queue. In such scenarios, customers of one class (i.e., requiring a given type of service) may be hindered (``blocked") by customers of other classes. For instance, if a road or a highway is split in two or more subroads leading to different destinations, cars on that road heading for ...
Analysis of a discrete-time queue with geometrically distributed service capacities Ghent University
We consider a discrete-time queueing model whereby the service capacity of the system, i.e., the number of work units that the system can perform per time slot, is variable from slot to slot. Specifically, we study the case where service capacities are independent from slot to slot and geometrically distributed. New customers enter the system according to a general independent arrival process. Service demands of the customers are i.i.d. and ...
A two-class global FCFS discrete-time queueing model with arbitrary-length constant service times Ghent University
Performance analysis of hybrid MTS/MTO systems with stochastic demand and production Ghent University
Analysis of a two-class single-server discrete-time FCFS queue : the effect of interclass correlation Ghent University
A queueing model for group-screening facilities Ghent University
Classification of items can often be achieved more economically by screening the items in groups rather than individually. We model a group screening facility by a batch-service queueing model where the service (screening) time of a batch (group) is dependent on the number of customers (items) within it. We calculate the fraction of time the screening facility is screening and the average delay of items. These performance measures enable to ...