Abstract
In this work Markov multi-channel queueing networks with rate of the external load varying with time are considered. It is assumed that the starting load in the network can be not only a fixed constant value, but also can be asymptotically increasing in a series scheme. A many-dimensional service process of the network is introduced as the number of calls in the network nodes at the corresponding instant of time. For the service process, approximating Gaussian processes are constructed for both cases of starting load, when the network operates in heavy traffic regime. Correlation characteristics of the limit processes are written via the network parameters. It is proved that a many-dimensional Ornstein-Uhlenbeck process approximates the service process if the number of calls in the network nodes is asymptotically large at the initial instant of time.
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Lebedev, E., Livinska, H. (2018). On Gaussian Approximation of Queueing Networks with Different Starting Load. In: Dudin, A., Nazarov, A., Moiseev, A. (eds) Information Technologies and Mathematical Modelling. Queueing Theory and Applications. ITMM WRQ 2018 2018. Communications in Computer and Information Science, vol 912. Springer, Cham. https://doi.org/10.1007/978-3-319-97595-5_3
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