Two-Phase Dual–Axis Model of a Multihop System with Differentiated Transmission Capacity of its Subscriber and Inter-Satellite Links

The paper considers the process of message delivery in a low-orbit multihop communication system. Messages in this system are routed by the relay satellite on-board equipment with a router function being a component of the orbital constellation of the low-orbit communication system. A two-phase dual-axis model of the queuing system is proposed for study. It consists of four service devices with differentiated transmission capacity located on two axes and simulates operation of the subscriber and inter-satellite links. The incoming flows are simple and different for each axis. The model is designed to predict probability of the message delivery through a given number of the inter-satellite links for a given average number of messages arriving at the subscriber link and the arbitrary number of hops along the message route.

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