Results 51 to 60 of about 2,036 (280)
DTN for LEO satellite communications
, 2011 Satellite communications are an interesting and promising application field for Delay/Disruption Tolerant Networking (DTN). Although primarily conceived for deep space communications and sensor networks, it was immediately recognized that DTN was ...
CAINI, CARLO +3 more
core +1 more source
, 2021 Positioning accuracy is affected by the combined effect of user range errors and the geometric distribution of satellites. Dilution of precision (DOP) is defined as the geometric strength of visible satellites.
Haomeng Cui, Shoujian Zhang
core +1 more source
Advanced Functional Materials, EarlyView.A printed superparamagnetic nanoparticle‐based flux guide enables the realization of a hysteresis‐free three‐axis magnetic sensor. This innovative architecture efficiently redirects out‐of‐plane fields to planar sensing elements, facilitating simultaneous vector detection without complex reset protocols.
Changyeop Jeon +10 more
wiley +1 more source
Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet
Advanced Materials, EarlyView.Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens +8 more
wiley +1 more source
BeiDou Augmented Navigation from Low Earth Orbit Satellites
Sensors, 2019 Currently, the Global Navigation Satellite System (GNSS) mainly uses the satellites in Medium Earth Orbit (MEO) to provide position, navigation, and timing (PNT) service.
Mudan Su +3 more
doaj +1 more source
LEO satellite constellation design with multi-QoS guarantee for non-terrestrial network [PDF]
, 2023 LEO satellite constellation (LSC) offers seamless and fast connectivity for non-terrestrial network (NTN).However, the lack of QoS guarantees for users significantly impacts the performance of the NTN system.Considering multi-QoS metrics, a capacity and ...
Xianyi YE +5 more
core +1 more source
Transparent Perovskite Light‐Emitting Diodes with Conductive Oxide Top Electrodes
Advanced Materials, EarlyView.Transparent perovskite light‐emitting diodes (TrPeLEDs) enable simultaneous display and transparency, expanding application possibilities. Using a metal oxide buffer layer and pulsed laser deposition, TrPeLEDs with diverse compositions and architectures are demonstrated.
Michele Forzatti +11 more
wiley +1 more source
Study and simulation of communication links in a LEO satellite constellation based on Link Budget calculations [PDF]
, 2022 Currently, about 40% of the world’s population has limited or no access to high-speed Internet. Especially in rural, hard-to-reach areas, there is a challenge in terms of infrastructure to guarantee a quality connection.The need for global coverage has ...
Gallardo Marquina, Sergi
core +1 more source
Optimized Satellite Participation in Federated Learning over LEO Constellation Networks
This paper presents an intelligent device selection framework for Federated Learning (FL) in Low Earth Orbit (LEO) satellite constellation networks.
Lagunas, Eva +6 more
core +2 more sources
On an Ultra-Dense LEO-Satellite-Based Computing Network Constellation Design
EngineeringCommercial ultra-dense low-Earth-orbit (LEO) satellite constellations have recently been deployed to provide seamless global Internet services. To improve the satellite network transmission efficiency and provide robust wide-coverage computing services ...
Yijing Sun +3 more
doaj +1 more source