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arXiv 2012.06182eess.SPcs.NIcs.SYeess.SY
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综合卫星-空中网络中的点对点通信:现状和未来挑战

Point-to-Point Communication in Integrated Satellite-Aerial Networks: State-of-the-art and Future Challenges

Nasir Saeed, Heba Almorad, Hayssam Dahrouj, Tareq Y. Al-Naffouri, Jeff S. Shamma, Mohamed-Slim Alouini

摘要:

本文概述了用于综合卫星-空中网络的点对点(P2P)链路,这些链路被设想为第六代(6 G)无线网络愿景的关键推动者之一。本文首先概述了这种集成的大规模复杂网络的独特性,通常表示为空间网络,并侧重于两个特殊的空间-空中基础设施,即卫星网络和高空平台(HAP)。然后将连接的P2P通信链路分为同层卫星到卫星链路(SSLL)、异层卫星到卫星链路(SSLD)和HAP到HAP链路(HHL)。本文分别概述了这种空间网络的每一层,并强调了连接链接的可能性质(即,射频或自由空间光学),并具有对现有链路预算结果的专用概述。之后,本文提出了实现这样一个综合的卫星HAP网络提供宽带服务的服务不足和偏远地区的前景的优点。最后,本文揭示了未来的几个研究方向,即大规模网络优化,智能卸载,智能平台,能源效率,多址接入计划,和分布式空间网络的背景下,空间网络。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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