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Non-Terrestrial Networks (NTN) are emerging as critical enablers of global connectivity, particularly in remote, unserved, underserved, or maritime regions lacking traditional infrastructure. While much of the existing work on NTN focuses…

Emerging Technologies · Computer Science 2025-12-24 Md Mahfuzur Rahman , Nishith Tripathi , Jeffrey H. Reed , Lingjia Liu

The integration of non-terrestrial networks (NTN) into 5G new radio (NR) has opened up the possibility of developing a new positioning infrastructure using NR signals from Low-Earth Orbit (LEO) satellites. Compared to existing Global…

Designing optimal non-terrestrial network (NTN) constellations is essential for maximizing throughput and ensuring fair resource distribution. This paper presents FTA-NTN (Fairness and Throughput Assurance in Non-Terrestrial Networks), a…

Networking and Internet Architecture · Computer Science 2026-01-28 Sachin Ravikant Trankatwar , Heiko Straulino , Petar Djukic , Burak Kantarci

Graph neural networks (GNNs) model nonlinear representations in graph data with applications in distributed agent coordination, control, and planning among others. Current GNN architectures assume ideal scenarios and ignore link…

Signal Processing · Electrical Eng. & Systems 2021-09-01 Zhan Gao , Elvin Isufi , Alejandro Ribeiro

Among the recent advances and innovations in satellite communications, Non-Geostationary Orbit (NGSO) satellite constellations are gaining popularity as a viable option for providing widespread broadband internet access and backhauling…

Systems and Control · Electrical Eng. & Systems 2023-10-02 Victor Monzon Baeza , Flor Ortiz , Eva Lagunas , Tedros Salih Abdu , Symeon Chatzinotas

On the one hand, Reconfigurable Intelligent Surfaces (RISs) emerge as a promising solution to meet the demand for higher data rates, improved coverage, and efficient spectrum utilization. On the other hand, Non-Terrestrial Networks (NTNs)…

Information Theory · Computer Science 2023-10-26 Muhammad Ali Jamshed , Aryan Kaushik , Mesut Toka , Wonjae Shin , Muhammad Zeeshan Shakir , Soumya P. Dash , Davide Dardari

High altitude platform stations (HAPS) have recently emerged as a new key stratospheric player in non-terrestrial networks (NTN) alongside satellites and low-altitude platforms. In this paper, we present the main communication links between…

Networking and Internet Architecture · Computer Science 2023-10-17 Zhengying Lou , Baha Eddine Youcef Belmekki , Mohamed-Slim Alouini

The emerging fifth generation (5G) and the upcoming sixth generation (6G) communication technologies introduce the use of space- and airborne networks in their architectures under the scope of non-terrestrial networks (NTNs). With this…

Networking and Internet Architecture · Computer Science 2023-08-02 Amina Fellan , Ainur Daurembekova , Hans D. Schotten

Low earth orbit (LEO) satellite plays an indispensable role in the earth network because of its low latency, large capacity, and seamless global coverage. For such an unprecedented extensive irregular system, stochastic geometry (SG) is a…

Information Theory · Computer Science 2021-10-26 Ruibo Wang , Mustafa A. Kishk , Mohamed-Slim Alouini

Since the introduction of 5G Release 18, non-terrestrial networks (NTNs) based positioning has garnered significant interest due to its numerous applications, including emergency services, lawful intercept, and charging and tariff services.…

Information Theory · Computer Science 2023-11-28 Harish K. Dureppagari , Chiranjib Saha , Harpreet S. Dhillon , R. Michael Buehrer

This paper presents a tutorial on stochastic geometry (SG) based analysis for cellular networks. This tutorial is distinguished by its depth with respect to wireless communication details and its focus on cellular networks. The paper starts…

Information Theory · Computer Science 2016-11-15 Hesham ElSawy , Ahmed Sultan-Salem , Mohamed-Slim Alouini , Moe Z. Win

Non-terrestrial networks (NTNs), which integrate space and aerial networks with terrestrial systems, are a key area in the emerging sixth-generation (6G) wireless networks. As part of 6G, NTNs must provide pervasive connectivity to a wide…

Networking and Internet Architecture · Computer Science 2022-01-24 Sheikh Salman Hassan , Do Hyeon Kim , Yan Kyaw Tun , Nguyen H. Tran , Walid Saad , Choong Seon Hong

The increasing demand for reliable, high-capacity communication during large-scale outdoor events poses significant challenges for traditional Terrestrial Networks (TNs), which often struggle to provide consistent coverage in high-density…

Networking and Internet Architecture · Computer Science 2025-06-13 Valdemar Farré , Juan Estrada , David Vega , Luis F Urquiza-Aguiar , Juan A. Vásquez Peralvo , Symeon Chatzinotas

The concept of Ultra Dense Networks (UDN) is often seen as a key enabler of the next generation mobile networks. However, existing analysis of UDNs, including Stochastic Geometry, has not been able to fully determine the potential gains and…

Information Theory · Computer Science 2017-12-07 Marcin Filo , Chuan Heng Foh , Seiamak Vahid , Rahim Tafazolli

Beam management is central in the operation of beamformed wireless cellular systems such as 5G New Radio (NR) networks. Focusing the energy radiated to mobile terminals (MTs) by increasing the number of beams per cell increases signal power…

Information Theory · Computer Science 2020-12-08 Sanket S. Kalamkar , François Baccelli , Fuad M. Abinader , Andrea S. Marcano Fani , Luis G. Uzeda Garcia

To achieve global coverage and ubiquitous connectivity, the non-terrestrial network (NTN) has been regarded as a key enabler in the sixth generation (6G) network, which includes uncrewed aerial vehicles (UAVs), high-altitude platforms…

Systems and Control · Electrical Eng. & Systems 2026-01-23 Jikang Deng , Hui Zhou , Mohamed-Slim Alouini

The integration of satellite communication into 5G has been formalized in 3GPP Release 17 through the specification of Non-Terrestrial Networks (NTN), marking a significant step toward achieving global connectivity. However, the early-stage…

Networking and Internet Architecture · Computer Science 2025-09-26 Lu Hou , Kan Zheng , Jie Mei , Cheng Huang

Efficient resource management is critical for Non-Terrestrial Networks (NTNs) to provide consistent, high-quality service in remote and under-served regions. While traditional single-point prediction methods, such as Long-Short Term Memory…

Signal Processing · Electrical Eng. & Systems 2025-03-27 Cristian J. Vaca-Rubio , Vaishnavi Kasuluru , Engin Zeydan , Luis Blanco , Roberto Pereira , Marius Caus , Kapal Dev

We provide an overview of the 3rd generation partnership project (3GPP) work on evolving the 5G wireless technology to support non-terrestrial satellite networks. Adapting 5G to support non-terrestrial networks entails a holistic design…

Networking and Internet Architecture · Computer Science 2021-07-08 Xingqin Lin , Stefan Rommer , Sebastian Euler , Emre A. Yavuz , Robert S. Karlsson

In the Global Navigation Satellite System (GNSS) context, the growing number of available satellites has lead to many challenges when it comes to choosing the most accurate pseudorange contributions, given the strong impact of biased…

Signal Processing · Electrical Eng. & Systems 2023-06-09 Ibrahim Sbeity , Christophe Villien , Benoît Denis , E. Veronica Belmega