The mathematical model of a queueing system with heterogeneous servers, without queues, and with two types of requests is investigated. High-priority requests are processed in fast servers while low-priority calls are processed in slow servers. If all servers in some group are busy, then reassigning of requests to another group is allowed. Reassigning is based on random schemes and reassignment probability depends on the number of busy servers in appropriate group. Exact and approximate methods are developed for the analysis of characteristics of the system. Explicit approximate formulas to calculate the approximate values of characteristics are proposed.
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Translated from Kibernetika i Sistemnyi Analiz, No. 1, January–February, 2020, pp. 106–117.
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Melikov, A.Z., Ponomarenko, L.A. & Mekhbaliyeva, E.V. Analyzing the Models of Systems with Heterogeneous Servers. Cybern Syst Anal (2020). https://doi.org/10.1007/s10559-020-00224-x
- heterogeneous server
- queueing system
- requests of different types