Abstract
Heterogeneous servers which can differ in service speed and reliability are getting more popular in modeling of modern communication systems. For a two-server queueing system with unreliable servers the allocation of customers between the servers is performed via a threshold control policy which prescribes to use the fastest server whenever it is free and the slower one only if the number of waiting customers exceeds some threshold level depending on the state of faster server. The main task of the paper consists in reliability analysis of the proposed system including evaluation of the stationary availability and reliability function. The effects of different parameters on introduced reliability characteristics are analyzed numerically.
D. Efrosinin—The publication was financially supported by the Ministry of Education and Science of the Russian Federation (the Agreement number 02.a03.21.0008), by the Russian Foundation for Basic Research, Project No. 16-37-60072 mol_a_dk and No. 15-08-08677 A, by the Austro-Hungarian Scientific Cooperation OMAA 96öu8.
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Efrosinin, D., Sztrik, J., Farkhadov, M., Stepanova, N. (2017). Reliability Analysis of a Two-Server Heterogeneous Unreliable Queueing System with a Threshold Control Policy. In: Dudin, A., Nazarov, A., Kirpichnikov, A. (eds) Information Technologies and Mathematical Modelling. Queueing Theory and Applications. ITMM 2017. Communications in Computer and Information Science, vol 800. Springer, Cham. https://doi.org/10.1007/978-3-319-68069-9_2
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