Retrial Queueing Systems in Series of Space Experiments “Kontur”

This article describes queueing systems model of data transmission system for remote control of robot from board of ISS using public networks. Model has two incoming flows, one service channel, limited buffer size and randomized push-out mechanism. Also model of a retrial queueing system and lost packets with specified probability are able to get back on service. Two parameters: retrial and pushing-out probabilities of randomized mechanism have extremely high influence on model parameters like loss probability and average queue length and allow changing them on tens of percents. Also shown that retrial queueing models are having areas of linear behavior and blocking too, as model without retrial.