No abstract

No abstract

No abstract

No abstract

No abstract

No abstract

No abstract

In this paper, we consider an imperfect hardware hybrid satellite-terrestrial network (HSTN) where the satellite communication with a ground user equipment (UE) is aided by the multiple amplify-andforward (AF) three-dimensional (3D) mobile unmanned aerial vehicle (UAV) relays. Herein, we consider that all transceiver nodes are corrupted by the radio frequency hardware impairments (RFHI). Further, a stochastic mixed mobility (MM) model is employed to characterize the instantaneous location of 3D mobile UAV relays in a cylindrical cell with UE lying at its center on ground plane. Taking into account the aggregate RFHI model for satellite and UAV relay transceivers and the random 3D distancesbased path loss for UAV relay-UE links, we investigate the outage probability (OP) and corresponding asymptotic outage behaviour of the system under an opportunistic relay selection scheme in a unified form for shadowed-Rician satellite links' channels and Nakagami-m as well as Rician terrestrial links' channels. We corroborate theoretical analysis by simulations. Index TermsHybrid satellite-terrestrial network, unmanned aerial vehicle (UAV), mobile relaying, hardware impairments.