Calculating steady-state probabilities of single-channel closed queueing systems using hyperexponential approximation

Yuriy Zhernovyi, Bohdan Kopytko
2020 Journal of Applied Mathematics and Computational Mechanics  
In this paper we propose a method for calculating steady-state probability distributions of the single-channel closed queueing systems with arbitrary distributions of customer generation times and service times. The approach based on the use of fictitious phases and hyperexponential approximations with parameters of the paradoxical and complex type by the method of moments. We defined conditions for the variation coefficients of the gamma distributions and Weibull distributions, for which the
more » ... ns, for which the best accuracy of calculating the steady-state probabilities is achieved in comparison with the results of simulation modeling. MSC 2010: 60G10, 60J28, 60K25, 93B40
doi:10.17512/jamcm.2020.1.10 fatcat:sud4y7jhfje3bckeakcwrmqmkq