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In this paper, we focus on the use of Low-Eart Orbit (LEO) satellites providing the Narrowband Internet of Things (NB-IoT) connectivity to the on-ground user equipment (UEs). Conventional resource allocation algorithms for the NBIoT systems…

Signal Processing · Electrical Eng. & Systems 2024-10-28 O. Kodheli , N. Maturo , S. Chatzinotas , S. Andrenacci , F. Zimmer

Earth Observation (EO) systems are crucial for cartography, disaster surveillance, and resource administration. Nonetheless, they encounter considerable obstacles in the processing and transmission of extensive data, especially in…

The deployment of low earth orbit (LEO) satellites with terrestrial networks can potentially increase the efficiency and reduce the cost of relaying content from a data center to a set of edge caches hosted by 6G and beyond enabled macro…

Signal Processing · Electrical Eng. & Systems 2023-03-24 Basem Abdellatif , Mostafa M. Shibl , Tamer Khattab , John Tadrous , Tarek ElFouly , Nizar Zorba

Utilizing Low Earth Orbit (LEO) satellite networks equipped with Inter-Satellite Links (ISL) is envisioned to provide lower delay compared to traditional optical networks. However, LEO satellites have constrained energy resources as they…

Information Theory · Computer Science 2023-07-11 Kosta Dakic , Chiu Chun Chan , Bassel Al Homssi , Kandeepan Sithamparanathan , Akram Al-Hourani

Data collected by Earth-observing (EO) satellites are often afflicted by cloud cover. Detecting the presence of clouds -- which is increasingly done using deep learning -- is crucial preprocessing in EO applications. In fact, advanced EO…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Andrew Du , Yee Wei Law , Michele Sasdelli , Bo Chen , Ken Clarke , Michael Brown , Tat-Jun Chin

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

The rapid advancement of low Earth orbit (LEO) satellite communication systems has significantly enhanced global connectivity, offering high-capacity, low-latency services crucial for next-generation applications. However, the dense…

Information Theory · Computer Science 2024-11-15 Qianqian Zhang , Ye Hu , Minchae Jung

Low Earth Orbit (LEO) satellite networks connect millions of devices on Earth and offer various services, such as data communications, remote sensing, and data harvesting. As the number of services increases, LEO satellite networks will…

Information Theory · Computer Science 2024-08-12 Chang-Sik Choi

Low Earth orbit (LEO) satellites play a crucial role in providing global connectivity for non-terrestrial networks (NTNs) and supporting various Internet-of-Remote-Things (IoRT) applications. Each LEO satellite functions as a relay node in…

Networking and Internet Architecture · Computer Science 2024-05-28 Jinho Choi

In real-time and high-resolution Earth observation imagery, Low Earth Orbit (LEO) satellites capture images that are subsequently transmitted to ground to create an updated map of an area of interest. Such maps provide valuable information…

Networking and Internet Architecture · Computer Science 2023-07-18 Israel Leyva-Mayorga , Marc M. Gost , Marco Moretti , Ana Pérez-Neira , Miguel Ángel Vázquez , Petar Popovski , Beatriz Soret

The extension of wide area wireless connectivity to low-earth orbit (LEO) satellite communication systems demands a fresh look at the effects of in-orbit base stations, sky-to-ground propagation, and cell planning. A multi-beam LEO…

Signal Processing · Electrical Eng. & Systems 2022-07-15 Eunsun Kim , Ian P. Roberts , Jeffrey G. Andrews

Unlike in terrestrial cellular networks, certain frequency bands for low-earth orbit (LEO) satellite systems have thus far been allocated on a non-exclusive basis. In this context, systems that launch their satellites earlier (referred to…

Signal Processing · Electrical Eng. & Systems 2025-10-06 Jeong Min Kong , Eunsun Kim , Ian P. Roberts

The rapid evolution of communication technologies, compounded by recent geopolitical events such as the Viasat cyberattack in February 2022, has highlighted the urgent need for fast and reliable satellite missions for military and civil…

Cryptography and Security · Computer Science 2024-11-20 Olfa Ben Yahia , William Ferguson , Sumit Chakravarty , Nesrine Benchoubane , Gunes Karabulut Kurt , Gürkan Gür , Gregory Falco

Large low-Earth orbit (LEO) satellite networks are being built to provide low-latency broadband Internet access to a global subscriber base. In addition to network transmissions, researchers have proposed embedding compute resources in…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-08-15 Tobias Pfandzelter , David Bermbach

Low Earth orbit (LEO) satellite constellations play a pivotal role in sixth-generation (6G) wireless networks by providing global coverage, massive connections, and huge capacity. In this paper, we present a novel LEO satellite…

Information Theory · Computer Science 2025-09-05 Wenfei Yao , Xiaoming Chen , Qi Wang , Xingyu Peng

The developments of satellite communication in network systems require strong and effective security plans. Attacks such as denial of service (DoS) can be detected through the use of machine learning techniques, especially under normal…

Cryptography and Security · Computer Science 2023-01-11 Nacereddine Sitouah , Fatiha Merazka , Abdenour Hedjazi

Low Earth orbit (LEO) satellite constellations are rapidly becoming essential enablers of next-generation wireless systems, offering global broadband access, high-precision localization, and reliable sensing beyond terrestrial coverage.…

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 work develops an analytical framework for downlink low Earth orbit (LEO) or medium Earth orbit (MEO) satellite communications, leveraging tools from stochastic geometry. We propose a tractable approach to the analysis of such satellite…

Signal Processing · Electrical Eng. & Systems 2024-06-14 Chang-Sik Choi , François Baccelli