## Control Systems and Computers, N3, 2018, Article 6

Upr. sist. maš., 2018, Issue 3 (275), pp. 60-68.

UDK 004.94

Mammad SHAHMALIYEV, PhD student, National Aviation Academy of Azerbaijan, Xudu Mammadov str. 38, 122, Baku, AZ1129, Azerbaaijan, mamed.shahmaliyev@gmail.com

### SIMULATION MODEL OF INFINITE PERISHABLE QUEUEING INVENTORY SYSTEM WITH FEEDBACK

Perishable Queuing Inventory system with positive service time and customer feedback is considered. The system applies Variable Size Order policy for the inventory replenishment. Stochastic simulation method is used to calculate the system performance measures and find its stationary distribution. The dependence of performance measures on the reorder level is illustrated and analyzed using the numerical experiments.

Keywords: perishable queuing-inventory system, infinite three-dimensional Markov Chain, simulation algorithm, VSO-policy, numerical experiments.

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