Results 241 to 246 of about 1,571,968 (246)
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Ubiquitous Integrated Sensing and Communications for Massive MIMO LEO Satellite Systems

IEEE Internet of Things Magazine
The next sixth generation (6G) networks are envisioned to integrate sensing and communications in a single system, thus greatly improving spectrum utilization and reducing hardware costs.
Li You   +6 more
semanticscholar   +1 more source

Deep Reinforcement Learning-based Satellite Handover Scheme for Satellite Communications

International Conference on Wireless Communications and Signal Processing, 2021
Low Earth orbit (LEO) satellites have attracted increasing attention in recent years due to their wide coverage area and flexible connectivity. However, the high speed mobility of LEO satellites imposes huge challenges for satellite handover in LEO ...
Jie Wang   +5 more
semanticscholar   +1 more source

Broadband LEO Satellite Communications: Architectures and Key Technologies

IEEE wireless communications, 2019
This article aims to provide a comprehensive overview for key issues in broadband LEO satellite communication systems. First of all, the network architecture is introduced, which is the basis of the whole system.
Yongtao Su   +5 more
semanticscholar   +1 more source

Cybersecurity of Satellite Communications Systems: A Comprehensive Survey of the Space, Ground, and Links Segments

IEEE Communications Surveys and Tutorials
Satellite communications (Satcoms) systems have become an integral part of modern society, providing critical infrastructure for a wide range of applications. However, as the reliance on Satcoms has increased, cyberattacks on Satcoms systems have emerged
Sara Salim, Nour Moustafa, M. Reisslein
semanticscholar   +1 more source

Multi-Satellite MIMO Systems for Direct Satellite-to-Device Communications: A Survey

IEEE Communications Surveys and Tutorials
Advancements in satellite technology have made direct satellite-to-device connectivity a viable solution for ensuring global access. This method is designed to provide Internet connectivity to remote, rural, or underserved areas where traditional ...
Zohre Mashayekh Bakhsh   +5 more
semanticscholar   +1 more source

Self-powered absorptive reconfigurable intelligent surfaces for securing satellite-terrestrial integrated networks

China Communications
Satellite communications have attracted significant interests due to its advantages of large footprint and massive access. However, the commonly used onboard beamforming is hard to achieve reliable security because of the highly correlated legitimate and
Lin Zhi   +6 more
semanticscholar   +1 more source

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