A Large Closed Queueing Network Containing Two Types of Node and Multiple Customer Classes: One Bottleneck Station

Details A Large Closed Queueing Network Containing Two Types of Node and Multiple Customer Classes: One Bottleneck Station A Large Closed Queueing Network Containing Two Types of Node and Multiple Customer Classes: One Bottleneck Station

2005-05-24

arxiv.org/abs/math/0505489v1

Queueing Systems, 48 (2004), 45-73

Mathematics

Probability

39 pages, 5 figures

Scientific paper

The paper studies a closed queueing network containing two types of node. The first type (server station) is an infinite server queueing system, and the second type (client station) is a single server queueing system with autonomous service, i.e. every client station serves customers (units) only at random instants generated by strictly stationary and ergodic sequence of random variables. It is assumed that there are $r$ server stations. At the initial time moment all units are distributed in the server stations, and the $i$th server station contains $N_i$ units, $i=1,2,...,r$, where all the values $N_i$ are large numbers of the same order. The total number of client stations is equal to $k$. The expected times between departures in the client stations are small values of the order $O(N^{-1})$ ~ $(N=N_1+N_2+...+N_r)$. After service completion in the $i$th server station a unit is transmitted to the $j$th client station with probability $p_{i,j}$ ~ ($j=1,2,...,k$), and being served in the $j$th client station the unit returns to the $i$th server station. Under the assumption that only one of the client stations is a bottleneck node, i.e. the expected number of arrivals per time unit to the node is greater than the expected number of departures from that node, the paper derives the representation for non-stationary queue-length distributions in non-bottleneck client stations.

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