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Low Earth Orbit (LEO) satellite networks are capable of improving the global Internet service coverage. In this context, we propose a hybrid beamforming design for holographic metasurface based terrestrial users in multi-altitude LEO…

Information Theory · Computer Science 2025-01-09 Qingchao Li , Mohammed El-Hajjar , Kaijun Cao , Chao Xu , Harald Haas , Lajos Hanzo

This letter studies the performance of a single gateway LoRa system in the presence of different interference considering the imperfect orthogonality effect. It utilizes concepts of stochastic geometry to present a low-complexity…

Networking and Internet Architecture · Computer Science 2020-11-03 Qahhar Muhammad Qadir

Using unmanned aerial vehicles (UAVs) to enhance network coverage has proven a variety of benefits compared to terrestrial counterparts. One of the commonly used mathematical tools to model the locations of the UAVs is stochastic geometry…

Networking and Internet Architecture · Computer Science 2023-01-04 Ruibo Wang , Mustafa A. Kishk , Mohamed-Slim Alouini

Starlink and alike have attracted a lot of attention recently, however, the inner working of these low-earth-orbit (LEO) satellite networks is still largely unknown. This paper presents an ongoing measurement campaign focusing on Starlink,…

Networking and Internet Architecture · Computer Science 2023-07-14 Jianping Pan , Jinwei Zhao , Lin Cai

Low Earth orbit (LEO) satellites has brought about significant improvements in wireless communications, characterized by low latency and reduced transmission loss compared to geostationary orbit (GSO) satellites. Ultra-dense LEO satellites…

Information Theory · Computer Science 2024-12-12 Trinh Van Chien , Nguyen Minh Quan , Tri Nhu Do , Cuong Le , Tan N. Nguyen , Symeon Chatzinotas

Low Earth orbit Satellite Networks (LSNs) have been advocated as a key infrastructure for truly global coverage in the forthcoming 6G. This paper presents our initial measurement results and observations on the end-to-end network…

Networking and Internet Architecture · Computer Science 2022-12-29 Sami Ma , Yi Ching Chou , Haoyuan Zhao , Long Chen , Xiaoqiang Ma , Jiangchuan Liu

The growing number of satellites in low Earth orbit (LEO) has increased concerns about the risk of satellite collisions, which can ultimately result in the irretrievable loss of satellites and a growing amount of space debris. To mitigate…

Cryptography and Security · Computer Science 2025-01-17 Svenja Lage , Felicitas Hörmann , Felix Hanke , Michael Karl

With the rapid development of satellite communication technologies, the space-based access network has been envisioned as a promising complementary part of the future 6G network. Aside from terrestrial base stations, satellite nodes,…

Signal Processing · Electrical Eng. & Systems 2022-07-26 Zhenyu Xiao , Junyi Yang , Tianqi Mao , Chong Xu , Rui Zhang , Zhu Han , Xiang-Gen Xia

We develop a unified framework for distributed inference, semantic communication, and exploration in spatial networks by integrating stochastic geometry with information geometry - a direction that has not been explored in prior literature.…

Information Theory · Computer Science 2025-08-26 Gourab Ghatak

The fast motion of Low Earth Orbit (LEO) satellites causes the propagation channel to vary rapidly, and its behavior is strongly shaped by the surrounding environment, especially at low elevation angles where signals are highly susceptible…

Networking and Internet Architecture · Computer Science 2026-03-27 Jingyi Tian , Lin Cai

Detecting spoofing attacks to Low-Earth-Orbit (LEO) satellite systems is a cornerstone to assessing the authenticity of the received information and guaranteeing robust service delivery in several application domains. The solutions…

Cryptography and Security · Computer Science 2025-05-23 Jos Wigchert , Savio Sciancalepore , Gabriele Oligeri

End-to-end routing in Low Earth Orbit (LEO) satellite constellations (LSatCs) is a complex and dynamic problem. The topology, of finite size, is dynamic and predictable, the traffic from/to Earth and transiting the space segment is highly…

Information Theory · Computer Science 2023-06-05 Beatriz Soret , Israel Leyva-Mayorga , Federico Lozano-Cuadra , Mathias D. Thorsager

When dedicated positioning systems, such as GPS, are unavailable, a mobile device has no choice but to fall back on its cellular network for localization. Due to random variations in the channel conditions to its surrounding base stations…

Information Theory · Computer Science 2015-10-27 Javier Schloemann , Harpreet S. Dhillon , R. Michael Buehrer

Low earth orbit (LEO) satellite communication systems have gained increasing attention as a crucial supplement to terrestrial wireless networks due to their extensive coverage area. This letter presents a novel system design for LEO…

Information Theory · Computer Science 2024-03-12 Shining Lin , Jiancheng An , Lu Gan , Mérouane Debbah , Chau Yuen

This paper investigates the maximum achievable downlink spectral efficiency of low Earth orbit (LEO) satellite constellations. Spectral efficiency is defined here as the total network sum rate per unit bandwidth per unit area of Earth's…

Signal Processing · Electrical Eng. & Systems 2025-11-11 Cuneyd Ozturk , Dongning Guo , Randall A. Berry , Michael L. Honig

This paper addresses the complexities of entanglement distribution in LEO satellite networks, particularly those arising from their dynamic topology. Traditional static and dynamic entanglement distribution methods often result in high…

Quantum Physics · Physics 2024-09-26 Seid Koudia , Junaid ur Rehman , Symeon Chatzinotas

Offering space-based Internet services with mega-constellations of low Earth orbit (LEO) satellites is a promising solution to connecting the unconnected. It can complement the coverage of terrestrial networks to help bridge the digital…

Networking and Internet Architecture · Computer Science 2021-08-18 Xingqin Lin , Stefan Cioni , Gilles Charbit , Nicolas Chuberre , Sven Hellsten , Jean-Francois Boutillon

Low-Earth Orbit (LEO) Satellite Networks (LSNs) offer a promising solution for extending connectivity to areas not covered by Terrestrial Networks (TNs). However, the rapid movement, broad coverage, and high communication latency of LEO…

Networking and Internet Architecture · Computer Science 2026-03-10 Xingqiu He , Zijie Ying , Chaoqun You , Yue Gao

Recent advancements in low-Earth orbit (LEO) satellites represented by large constellations and advanced payloads provide great promises for enabling beyond 5G and 6G telecommunications and high-quality and ubiquitous Internet connectivity…

Networking and Internet Architecture · Computer Science 2024-01-17 Peng Hu

The construction of Low Earth Orbit (LEO) satellite constellations has recently spurred tremendous attention from academia and industry. 5G and 6G standards have specified LEO satellite network as a key component of 5G and 6G networks.…

Networking and Internet Architecture · Computer Science 2025-01-08 Jiasheng Wu , Shaojie Su , Xiong Wang , Jingjing Zhang , Yue Gao