Thomas Demoor

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This paper studies a finite-sized discrete-time priority queue. Arriving packets can be classified into two types: delay-sensitive (class-1) packets and loss-sensitive (class-2) packets. Packets of both classes arrive according to a two-class discrete batch Markovian arrival process (2-DBMAP), taking into account the correlated nature of arrivals in(More)
This paper studies a single-server non-preemptive priority queue with two traffic classes in order to model Expedited Forwarding Per-Hop Behaviour in the Differentiated Services (DiffServ) architecture. Generally, queueing models assume infinite queue capacity but in a DiffServ router the capacity for high priority traffic is typically small to prevent this(More)
Infinite capacity queues are often used as approximation for their finite real-world counterparts as they are mathematically tractable. It is generally known that tail probabilities of low-priority system content in a two-class priority queue with infinite capacity for customers of both priority classes can be non-exponential, even if the interarrival time(More)
This paper addresses the effects of power saving mechanisms on cooperation in wireless networks. Cooperation by relaying data of other wireless nodes is crucial in (next-generation) wireless networks as it can greatly attribute to ensuring connectivity, reliability, performance, etc. As power saving relies on sleep mode, turning off the communication(More)
Cooperation is crucial in (next-generation) wireless networks as it can greatly attribute to ensuring connectivity, reliability, performance, ... Relaying looks promising in a wide variety of network types (cellular, ad-hoc on-demand), each using a certain protocol. Energy efficiency constitutes another key aspect of such networks, as battery power is often(More)
This paper studies a finite-sized discrete-time two-class priority queue. Packets of both classes arrive according to a two-class discrete batch Markovian arrival process (2-DBMAP), taking into account the correlated nature of arrivals in heterogeneous telecommunication networks. The model incorporates time and space priority to provide different types of(More)
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