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- W4313532399 abstract "Now many researchers are paying great attention to the study of large-scale queueing systems (LSQS) with a lager number of servers because of the development of 5G/6G networks and Internet of Things (IoT) is going at a high speed. All researchers understand that the join-the-shortest-queue rule is widely used balancing mechanisms for such queuing systems. In this paper we use numerical methods for analysis of the evolution of LSQS dynamics with $$n rightarrow infty $$ single-services, each with its own exponentially distributed service times of mean $$bar{t} =1/mu $$ , where $$mu >0 $$ is a service intensity. We use a Poisson incoming flow of requests with the intensity $$n lambda >0$$ . LSQS implements the service discipline so that each input request provides a randomly selection from any m-set servers such server that has the s-th shortest (or equivalently, the $$(m-s)$$ -th longest) queue size, $$1 le s le m$$ . The evolution dynamics LSQS can be describe using the function $$u_k^{s,m} (t)$$ . The function $$u_k^{s,m} (t)$$ can be found by solving a system of differential equations infinite degree which can be obtained using the Markov chains approach. We formulate the singularly perturbed Cauchy problem for this system of differential equations with a small parameter. We use the truncation procedure for this singularly perturbed Cauchy problem and formulate the finite order system of differential equations. We apply a high-order non-uniform grid scheme for numerical solving of the truncated Cauchy problem. We use different sets of small parameters for time-scaling processes analysis for LSQS. The grid scheme demonstrates good convergence of solutions of the singularly perturbed Cauchy problem when a small parameter tend to zero. The results of the numerical simulation show that this LSQS can hold with a high incoming flow of requests." @default.
- W4313532399 created "2023-01-06" @default.
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- W4313532399 date "2023-01-01" @default.
- W4313532399 modified "2023-10-18" @default.
- W4313532399 title "High-Order Non-uniform Grid Scheme for Numerical Analysis of Queueing System with a Small Parameter" @default.
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- W4313532399 doi "https://doi.org/10.1007/978-3-031-21438-7_66" @default.
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