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1 Journal of Telecommunications and Information Technology

1 2021

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Analysis of the Discrete-time Multi-queue System with a Cycle-based Scheduler

Burakowski Wojciech, Sosnowski Maciej

Journal of Telecommunications and Information Technology

2021

nr 2

68--76

This paper presents an analysis of a discrete-time multi-queue system handling a number of packet streams. The analysis focuses on calculating system state distribution and packet sojourn time distribution. The method relied upon for determining system state distribution is based on creating a number of equations that are solved numerically. Next, based on the distribution calculated in such a manner, we derive relations for packet sojourn time distribution. The models studied may be useful for instance in a system supporting a number of virtual links (each of a constant bitrate) that share a common physical link. Isolation of performance of those virtual links needs to be assured. Finally, we present some exemplary numerical results showing the usefulness of the proposed analysis for supporting the system dimensioning process.