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Outage Performance of Multi-UAV Relaying-based Imperfect Hardware Hybrid Satellite-Terrestrial Networks
arXiv - CS - Information Theory Pub Date : 2021-06-08 , DOI: arxiv-2106.04223
Pankaj K. Sharma, Deepika Gupta

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-and-forward (AF) three-dimensional ($3$D) 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 $3$D 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 $3$D distances-based 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-\emph{m} as well as Rician terrestrial links' channels. We corroborate theoretical analysis by simulations.

中文翻译:

基于多无人机中继的不完善硬件混合星地网络的中断性能

在本文中,我们考虑了一个不完善的硬件混合卫星地面网络 (HSTN),其中与地面用户设备 (UE) 的卫星通信由多路放大转发 (AF) 三维 ($3$D) 辅助移动无人机(UAV)中继。在此,我们认为所有收发器节点都被射频硬件损伤 (RFHI) 损坏。此外,使用随机混合移动性 (MM) 模型来表征 $3$D 移动 UAV 中继在圆柱形小区中的瞬时位置,UE 位于其地平面中心。考虑到卫星和无人机中继收发器的聚合 RFHI 模型以及无人机中继-UE 链路的基于随机 $3$D 距离的路径损耗,我们以统一形式研究了系统在机会中继选择方案下系统的中断概率 (OP) 和相应的渐近中断行为,用于阴影-Rician 卫星链路信道和 Nakagami-\emph {m} 以及 Rician 地面链路信道. 我们通过模拟证实了理论分析。
更新日期:2021-06-09
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