Results 21 to 30 of about 4,280,970 (334)

Flexible Resource Optimization for GEO Multibeam Satellite Communication System

open access: yesIEEE Transactions on Wireless Communications, 2021
Conventional GEO satellite communication systems rely on a multibeam foot-print with a uniform resource allocation to provide connectivity to users.
T. S. Abdu   +3 more
semanticscholar   +1 more source

A Weather-Dependent Hybrid RF/FSO Satellite Communication for Improved Power Efficiency [PDF]

open access: yesIEEE Wireless Communications Letters, 2021
Recent studies have shown that satellite communication (SatCom) will have a fundamental role in the next generation non-terrestrial networks (NTN). In SatCom, radio frequency (RF) or free-space optical (FSO) communications can be used depending on the ...
Olfa Ben Yahia   +4 more
semanticscholar   +1 more source

Reweighted Nuclear Norm and Total Variation Regularization With Sparse Dictionary Construction for Hyperspectral Anomaly Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Hyperspectral anomaly detection is an important technique in the field of remote sensing image processing. Over the last few years, low rank and sparse matrix decomposition (LRSMD) has played an increasingly significant role in hyperspectral anomaly ...
Xiaoyi Wang   +4 more
doaj   +1 more source

Architectures and Key Technical Challenges for 5G Systems Incorporating Satellites [PDF]

open access: yes, 2018
Satellite Communication systems are a promising solution to extend and complement terrestrial networks in unserved or under-served areas. This aspect is reflected by recent commercial and standardisation endeavours. In particular, 3GPP recently initiated
Alagha, N.   +12 more
core   +3 more sources

Adaptive-Combining-Based Hybrid FSO/RF Satellite Communication With and Without HAPS

open access: yesIEEE Access, 2021
In recent years, a growing interest has been witnessed in the usage of free space optics (FSO) link for satellite communication (SATCOM) scenarios, as it offers much higher data rates up to gigabits per second (Gbps) compared to existing radio frequency (
Suyash Shah   +4 more
semanticscholar   +1 more source

A Novel Weighted KNN Algorithm Based on RSS Similarity and Position Distance for Wi-Fi Fingerprint Positioning

open access: yesIEEE Access, 2020
In Wi-Fi fingerprint positioning, what we should most care about is the distance relationship between the user and the reference points (RP). However, most of the existing weighted k-nearest neighbor (WKNN) algorithms use the Euclidean distance of ...
Boyuan Wang   +6 more
doaj   +1 more source

Carrier Aggregation in Multi-Beam High Throughput Satellite Systems [PDF]

open access: yes, 2019
Carrier Aggregation (CA) is an integral part of current terrestrial networks. Its ability to enhance the peak data rate, to efficiently utilize the limited available spectrum resources and to satisfy the demand for data-hungry applications has drawn ...
Al-Hraishawi, Hayder   +5 more
core   +2 more sources

On the virtualization and dynamic orchestration of satellite communication services [PDF]

open access: yes, 2016
Key features of satellite communications such as wide-scale coverage, broadcast/multicast support and high availability, together with significant amounts of new satellite capacity coming online, anticipate new opportunities for satellite communications ...
Ahmed, Toufik   +8 more
core   +2 more sources

Gaussian Entanglement Distribution via Satellite [PDF]

open access: yes, 2015
In this work we analyse three quantum communication schemes for the generation of Gaussian entanglement between two ground stations. Communication occurs via a satellite over two independent atmospheric fading channels dominated by turbulence-induced ...
Hosseinidehaj, Nedasadat   +1 more
core   +1 more source

Planar Shared-Aperture Array Antenna With a High Isolation for Millimeter-Wave Low Earth Orbit Satellite Communication System

open access: yesIEEE Transactions on Antennas and Propagation, 2021
A planar dual-band shared-aperture array antenna for the ${K}$ -/Ka-band low Earth orbit (LEO) satellite communication is presented in this article. Substrate integrated coaxial line (SICL)-fed bow-tie transverse slots and substrate integrated waveguide
Zijun Guo   +4 more
semanticscholar   +1 more source

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