Results 71 to 80 of about 330 (175)

Performance Analysis of RIS-Assisted SatComs Based on a ZFBF and Co-Phasing Scheme

Mathematics
In recent high-throughput satellite communication (SatCom) systems, the use of reconfigurable intelligent surfaces (RISs) has emerged as a promising solution to improve spectral efficiency and extend coverage in areas with limited terrestrial network ...
Minchae Jung, Taehyoung Kim, Hyukmin Son
doaj   +1 more source

Cybersecurity in Satellite Communication Networks: Key Threats and Neutralization Measures

IEEE Open Journal of the Communications Society
The proliferation of satellite mega-constellations, such as SpaceX’s Starlink and NewSpace initiatives, particularly CubeSat deployments, and their integration into terrestrial 5G/6G networks have transformed space-based communications. While this
Aditi Ranjit Kumar Verma
doaj   +1 more source

Unveiling YouTube QoE Over SATCOM Using Deep-Learning

IEEE Access
The importance of stored streaming video for current Internet traffic is undeniable, even in the context of satellite communications (SATCOM). Therefore, Internet service providers aim to deliver the highest quality of experience to their end users ...
Matthieu Petrou, David Pradas, Mickael Royer, Emmanuel Lochin   +3 more
doaj   +1 more source

A Spectrum-Saving Transmission Method in Multi-Antenna Satellite Communication Star Networks: Sharing the Frequency with Terminals. [PDF]

Entropy (Basel), 2023
Li T, Hao X, Yue X.
europepmc   +1 more source

Chaos-Based Dual-Function OTFS: Joint Security and PAPR Reduction for LEO Satellite Communications

IEEE Access
Orthogonal time frequency space (OTFS) modulation is emerging as a strong candidate for Low Earth Orbit (LEO) satellite communication systems due to its ability to counter Doppler and delay impairments, enabling reliable performance in high-mobility ...
Imran Younas, Nawaf Qasem Hamood Othman
doaj   +1 more source

Secure energy efficiency maximization for joint ITS and IRS assisted satellite downlink communications

IET Communications
Satellite communications (SatCom) have been viewed as a promising technique to achieve ubiquitous global coverage in next‐generation wireless systems.
Shaochuan Yang, Kaizhi Huang, Hehao Niu, Yi Wang, Ya Liu, Zheng Chu   +5 more
doaj   +1 more source

A Ka-Band Modular Dual Switchable Circularly Polarized Phased Array Transmitter for LEO Satellite Communications

IEEE Access
This article presents a scalable Ka-band phased array transmitter designed for the upload channel of terrestrial mobile transceivers in satellite communications (SATCOM, 27.5–30.0 GHz).
Amelia Ramos, Raul Arruela, Bernardo Lopes, Tiago Varum, Ricardo Correia, Joao N. Matos   +5 more
doaj   +1 more source

Sustainability of the Effects and Impacts of Using Digital Technology to Extend Maternal Health Services to Rural and Hard-to-Reach Populations: Experience From Southwest Nigeria. [PDF]

Front Glob Womens Health, 2022
Akeju D, Okusanya B, Okunade K, Ajepe A, Allsop MJ, Ebenso B.   +5 more
europepmc   +1 more source

Covert Performance for Integrated Satellite Multiple Terrestrial Relay Networks with Partial Relay Selection. [PDF]

Sensors (Basel), 2022
Wu Z, Liu R, Shuai H, Zhu S, Li C.
europepmc   +1 more source

Acceptability and Potential Effectiveness of eHealth Tools for Training Primary Health Workers From Nigeria at Scale: Mixed Methods, Uncontrolled Before-and-After Study. [PDF]

JMIR Mhealth Uhealth, 2021
Hicks JP, Allsop MJ, Akaba GO, Yalma RM, Dirisu O, Okusanya B, Tukur J, Okunade K, Akeju D, Ajepe A, Okuzu O, Mirzoev T, Ebenso B.   +12 more
europepmc   +1 more source