Performance Analysis of High-altitute Plateforms using Mutli-server Retrial Queues

High-Altitude Platforms (HAPs) are an emerging class of stratospheric systems designed to provide telecommunications and other services from altitudes typically between 17 km and 25 km. HAPs can act as communication relays, connecting mobile networks to core networks. In this study, we propose a two-class multi-server retrial queueing model to represent the behavior of HAPs. We analyze the probability that the system's customer population surpasses a large threshold and examine the conditions necessary for the model's stability.