Publications
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An integrated inventory-location model for a supply chain under stochastic demand and lead time Ghent University
Boundary problem in a system with global FCFS and presorting Ghent University
In this paper we consider a continuous-time queueing system with two different types (1 and 2) of customers with two dedicated servers (also named 1 and 2). This means server 1 (2) can only serve customers of type 1 (2). The goal of this paper is to study the boundary conditions for a system with global FCFS and presorting service discipline, i.e., all arriving customers are accommodated in one single FCFS queue, regardless of their types, with ...
The impact of class clustering on a system with a global FCFS service discipline 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., the fact that customers of any given type may (or may not) have a tendency to arrive back-to-back, is a concept ...
Analysis of a two-class FCFS queueing system with interclass correlation Ghent University
This paper considers a discrete-time queueing system with one server and two classes of customers. All arriving customers are accommodated in one queue, and are served in a First-Come-First-Served order, regardless of their classes. The total numbers of arrivals during consecutive time slots are i.i.d. random variables with arbitrary distribution. The classes of consecutively arriving customers, however, are correlated in a Markovian way, i.e., ...
Influence of relative traffic distribution in nodes with blocking: an analytical model Ghent University
In nodes where the arriving packets are stored in one common buffer, packets with a given destination may have to wait for the transmission of packets with other destinations, even when the corresponding output channel is free. Although this so-called blocking effect has attracted considerable attention in literature, the influence of the relative distribution of the traffic according to destination has been largely overlooked. We therefore ...
A batch-service queueing model with a discrete batch Markovian arrival process Ghent University
Queueing systems with batch service have been investigated extensively during the past decades. However, nearly all the studied models share the common feature that an uncorrelated arrival process is considered, which is unrealistic in several real-life situations. In this paper, we study a discrete-time queueing model, with a server that only initiates service when the amount of customers in system (system content) reaches or exceeds a ...