A Discrete Event Simulation Model for Evaluating the Performances of an M/G/C/C State Dependent Queuing System

作者：Khalid Ruzelan; Nawawi Mohd Kamal M^*; Kawsar Luthful A; Ghani Noraida A; Kamil Anton A; Mustafa Adli

来源：PLos One, 2013, 8(4): e58402.

DOI：10.1371/journal.pone.0058402

M/G/C/C state dependent queuing networks consider service rates as a function of the number of residing entities (e. g., pedestrians, vehicles, and products). However, modeling such dynamic rates is not supported in modern Discrete Simulation System (DES) software. We designed an approach to cater this limitation and used it to construct the M/G/C/C state-dependent queuing model in Arena software. Using the model, we have evaluated and analyzed the impacts of various arrival rates to the throughput, the blocking probability, the expected service time and the expected number of entities in a complex network topology. Results indicated that there is a range of arrival rates for each network where the simulation results fluctuate drastically across replications and this causes the simulation results and analytical results exhibit discrepancies. Detail results that show how tally the simulation results and the analytical results in both abstract and graphical forms and some scientific justifications for these have been documented and discussed.

• 出版日期2013-4-1