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Queueing systems with cyclic service have a broad range of applications in communication systems, e.g., in switching systems, ring networks, burst assembly in OBS and traffic aggregation in edge nodes. While such systems have been extensively studied, the buffer capacity is often assumed to be unlimited. In real systems, queue sizes are always limited. We present an analytical method using state-space...
The cut-off threshold mechanism was traditionally used for overload protection in switching systems but is also valid for today's packet communications. In such systems, traffic flows are served in a prioritized manner and priorities are assigned to each type of traffic flow by defining the threshold limits for accessing the group of servers. We present an analytical study of a cut-off threshold delay-loss...
Cyclic service queueing systems have a broad range of applications in communication systems. From legacy systems like the slotted ring networks and switching systems, to more recent systems like optical burst assembly, Ethernet over SDH/SONET mapping and traffic aggregation at the edge nodes, all may employ cyclic service as a means of providing fairness to incoming traffic. This would require the...
In this paper, performance evaluation of a novel optical packet/burst switch comprising internal fiber rings [1] is carried out. A queueing model is proposed to measure the packet/burst loss probability of this switch. We observe that interconnection links between switching fabrics can limit the switch performance due to their restricted capacity of forwarding packet/burst from one fabric to another...
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