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The theoretical analysis of downlink massive MIMO usually assumes the ideal Gaussian channel matrix with asymp- totic orthogonality of channel vectors associated with different users, since it can provide the favorable propagation…

Information Theory · Computer Science 2015-11-30 Zhen Gao , Linglong Dai , Chau Yuen , Zhaocheng Wang

Wireless access points on unmanned aerial vehicles (UAVs) are being considered for mobile service provisioning in commercial networks. To be able to efficiently use these devices in cellular networks it is necessary to first have a…

Networking and Internet Architecture · Computer Science 2018-01-22 Boris Galkin , Jacek Kibiłda , Luiz A. DaSilva

Given their extensive geographic coverage, low Earth orbit (LEO) satellites are envisioned to find their way into next-generation (6G) wireless communications. This paper explores space-air-ground integrated networks (SAGINs) leveraging…

Information Theory · Computer Science 2024-12-24 Chao Zhang , Qingchao Li , Chao Xu , Lie-Liang Yang , Lajos Hanzo

The expansion of satellite-based quantum networks requires adaptive routing mechanisms that can sustain entanglement under dynamic orbital and atmospheric conditions. Conventional schemes, often tailored to static or idealised topologies,…

Quantum Physics · Physics 2025-11-10 Dhrumil Bhatt , Vidushi Kumar

There has lately been increased interest in describing complex systems not merely as single networks but rather as collections of networks that are coupled to one another. We introduce an analytically tractable model that enables one to…

Physics and Society · Physics 2019-06-05 Juan Fernández-Gracia , Jukka-Pekka Onnela

In satellite-to-ground communication, ensuring reliable and efficient connectivity poses significant challenges. The reconfigurable intelligent surface (RIS) offers a promising solution due to its ability to manipulate wireless propagation…

Signal Processing · Electrical Eng. & Systems 2023-11-07 Xingchen Liu , Liuxun Xue , Shu Sun , Meixia Tao

Scalability is a major challenge in non-geostationary orbit (NGSO) satellite networks due to the massive number of ground users sharing the limited sub-6 GHz spectrum. Using K- and higher bands is a promising alternative to increase the…

Networking and Internet Architecture · Computer Science 2025-12-03 Israel Leyva-Mayorga , Shashi Raj Pandey , Petar Popovski , Fabio Saggese , Beatriz Soret , Cedomir Stefanovic

Due to the ultra-dense constellation, efficient beam coverage and interference mitigation are crucial to low-earth orbit (LEO) satellite communication systems, while the conventional directional antennas and fixed-position antenna (FPA)…

Information Theory · Computer Science 2024-04-25 Lipeng Zhu , Xiangyu Pi , Wenyan Ma , Zhenyu Xiao , Rui Zhang

This paper aims to develop an accurate 3D geometry representation of satellite images using satellite-ground image pairs. Our focus is on the challenging problem of 3D-aware ground-views synthesis from a satellite image. We draw inspiration…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Ming Qian , Jincheng Xiong , Gui-Song Xia , Nan Xue

This paper surveys and unifies a number of recent contributions that have collectively developed a metric for decentralized wireless network analysis known as transmission capacity. Although it is notoriously difficult to derive general…

Information Theory · Computer Science 2016-11-17 Steven Weber , Jeffrey G. Andrews , Nihar Jindal

In this paper, we develop an innovative approach to quantitatively characterize the performance of ultra-dense wireless networks in a plethora of propagation environments. The proposed framework has the potential of significantly…

Signal Processing · Electrical Eng. & Systems 2020-07-15 Imene Trigui , Sofiene Affes , Marco Di Renzo , Dushantha Nalin K. Jayakody

We present a general and tractable fading model for line-of-sight (LOS) scenarios, which is based on the product of two independent and non-identically distributed $\kappa$-$\mu$ shadowed random variables. Simple closed-form expressions for…

We consider the use of multiple co-located satellites to improve the spectral efficiency of broadcast transmissions. In particular, we assume that two satellites transmit on overlapping geographical coverage areas, with overlapping…

Information Theory · Computer Science 2016-11-17 Andrea Modenini , Alessandro Ugolini , Amina Piemontese , Giulio Colavolpe

The emulation of wireless nodes spatial position is a practice used by deployment engineers and network planners to analyze the characteristics of a network. In particular, nodes geolocation will directly impact factors such as…

Information Theory · Computer Science 2013-06-06 Mouhamed Abdulla , Yousef R. Shayan

Channel charting has emerged as a powerful tool for user equipment localization and wireless environment sensing. Its efficacy lies in mapping high-dimensional channel data into low-dimensional features that preserve the relative…

Signal Processing · Electrical Eng. & Systems 2025-09-17 Ge Chen , Panqi Chen , Lei Cheng

The downlink coverage probability of a cellular network, when the base station locations are modelled by a Poisson point process (PPP), is known when the desired channel is Nakagami distributed with an integer shape parameter. However, for…

Information Theory · Computer Science 2016-10-25 Sudharsan Parthasarathy , Radha Krishna Ganti

Using tools from stochastic geometry, we develop a framework to model the downlink rate coverage probability of a user in a given small cell network (SCN) with massive MIMO-enabled wireless backhauls. The considered SCN is composed of a…

Information Theory · Computer Science 2017-01-23 Hina Tabassum , Ahmed Hamdi Sakr , Ekram Hossain

Line-of-sight (LoS) path is essential for the reliability of air-to-ground (A2G) communications, but the existence of LoS path is difficult to predict due to random obstacles on the ground. Based on the statistical geographic information…

Signal Processing · Electrical Eng. & Systems 2022-08-17 Qiuming Zhu , Fei Bai , Minghui Pang , Jie Li , Weizhi Zhong , Xiaomin Chen , Kai Mao

Future generation wireless networks are targeting the convergence of fixed, mobile and broadcasting systems with the integration of satellite and terrestrial systems towards utilizing their mutual benefits. Satellite Communications (Sat-…

Signal Processing · Electrical Eng. & Systems 2020-09-08 Shree Krishna Sharma , Jorge Querol , Nicola Maturo , Symeon Chatzinotas , Bjorn Ottersten

Satellite networks provide communication services to global users with an uneven geographical distribution. In densely populated regions, Inter-satellite links (ISLs) often experience congestion, blocking traffic from other links and…

Networking and Internet Architecture · Computer Science 2024-06-04 Hao Wu
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