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Erschienen in:
2015 | OriginalPaper | Buchkapitel
Methods for Analysis of Queueing Models with Instantaneous and Delayed Feedbacks
verfasst von : Agassi Melikov, Leonid Ponomarenko, Anar Rustamov
Erschienen in: Information Technologies and Mathematical Modelling - Queueing Theory and Applications
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Abstract
The new Markov models of multi-channel queueing systems with instantaneous and delayed feedback are proposed. In these models part of already serviced calls instantaneously feeds back to channel while the rest part either leaves the system or feeds back to channel after some delay in orbit. Behavior of already serviced calls is handled by randomized parameters. Both exact and asymptotic methods to calculate the quality of service (QoS) metrics of the proposed models are developed. Exact method is based on the system of balance equations (SBE) for steady-state probabilities of appropriate three dimensional Markov chain (3-D MC) while asymptotic method uses the new hierarchical space merging algorithm for 3-D MC. Results of numerical experiments are demonstrated.