论文标题
集成的卫星卫星网络中的点对点交流：最新和未来的挑战
Point-to-Point Communication in Integrated Satellite-Aerial Networks: State-of-the-art and Future Challenges
论文作者
论文摘要
本文概述了集成的卫星 - 海湾网络的点对点（P2P）链接，这些链接被设想为无线网络视觉的第六代（6G）的关键推动者之一。该论文首先概述了这种集成的大规模复杂网络的独特特征，通常用空间网络表示，并专注于两个特定的空间空气基础架构，即卫星网络和高高度平台（HAPS）。然后，该论文将连接的P2P通信链接分为同一层（SSLL）的卫星到卫星链接，不同层（SSLD）的卫星到卫星链接以及HAP-to-Hap链接（HHL）。本文概述了此类空间网络的每一层，并突出显示了连接链接的可能性（即，射频或自由空间光学器件），并具有专用的概述，以概述现有的链接预算结果。之后，该论文介绍了实现这种集成的卫星 - 哈普网络以在服务不足和偏远地区提供宽带服务的前瞻性优点。最后，本文在空间网络的背景下阐明了几个未来的研究方向，即大规模网络优化，智能卸载，智能平台，能源效率，多个访问方案和分布式空间网络。
This paper overviews point-to-point (P2P) links for integrated satellite-aerial networks, which are envisioned to be among the key enablers of the sixth-generation (6G) of wireless networks vision. The paper first outlines the unique characteristics of such integrated large-scale complex networks, often denoted by spatial networks, and focuses on two particular space-air infrastructures, namely, satellites networks and high-altitude platforms (HAPs). The paper then classifies the connecting P2P communications links as satellite-to-satellite links at the same layer (SSLL), satellite-to-satellite links at different layers (SSLD), and HAP-to-HAP links (HHL). The paper overviews each layer of such spatial networks separately, and highlights the possible natures of the connecting links (i.e., radio-frequency or free-space optics) with a dedicated overview to the existing link-budget results. The paper, afterwards, presents the prospective merit of realizing such an integrated satellite-HAP network towards providing broadband services in under-served and remote areas. Finally, the paper sheds light on several future research directions in the context of spatial networks, namely large-scale network optimization, intelligent offloading, smart platforms, energy efficiency, multiple access schemes, and distributed spatial networks.
