Results 11 to 20 of about 191,135 (314)

A Flexible Topology Control Strategy for Mega-Constellations via Inter-Satellite Links Based on Dynamic Link Optimization

Aerospace
In large-scale satellite constellations, the efficiency of inter-satellite communication is paramount. Traditional topology control strategies, such as the Manhattan configuration, provide stable links but can result in indirect communication paths ...
Yueyi Li, Junfeng Wu, Guohua Kang, Luyu Chen, Yuhuan Qiu, Wenwen Zhou   +5 more
doaj   +2 more sources

Ego-Satellite Perspective Multi-PAT Configurations for Optical Inter-Satellite Links

IEEE Access
Efforts are being made to commercialize optical inter-satellite links (O-ISL) in low earth orbit (LEO) satellite networks as it is a crucial technology for next-generation communication networks.
Jae Seong Hwang, Ji-Yung Lee, Hyunchae Chun   +2 more
doaj   +2 more sources

Modulation and Signal Processing for LEO-LEO Optical Inter-Satellite Links [PDF]

IEEE Access, 2023
We investigate key aspects of coherent optical communications on inter-satellite links (ISLs) for the next-generation ultra-dense low-Earth orbit (LEO) constellations.
I. P. Vieira, T. C. Pita, D. A. A. Mello
doaj   +2 more sources

Precise orbit determination for a large LEO constellation with inter-satellite links and the measurements from different ground networks: a simulation study

Satellite Navigation, 2022
Geodetic applications of Low Earth Orbit (LEO) satellites requires accurate satellite orbits. Instead of using onboard Global Navigation Satellite System observations, this contribution treats the LEO satellite constellation independently, using Inter ...
Xingchi He, Urs Hugentobler, Anja Schlicht, Yufeng Nie, Bingbing Duan   +4 more
doaj   +2 more sources

RF-Assisted Uncertainty Cone Reduction in Free-Space Optical Inter-Satellite Links

IEEE Open Journal of the Communications Society
One of the space communications industry’s current focuses is developing high-throughput communication terminals for satellite-to-satellite communication links.
Elena Fernandez-Nino, Juan A. Fraire, Adriano Camps, Joan A. Ruiz-De-Azua   +3 more
doaj   +2 more sources

Multicarrier Multiplexing Continuous-Variable Quantum Key Distribution at Terahertz Bands Under Indoor Environment and in Inter-Satellite Links Communication

IEEE Photonics Journal, 2021
We propose a continuous-variable quantum key distribution (CVQKD) scheme at terahertz (THz) bands based on multicarrier multiplexing (MCM) technology. In this scheme, multiple Gaussian modulated subcarriers are coupled to transmit multipath superposed ...
Chengji Liu, Changhua Zhu, Xiao Liu, Min Nie, Hong Yang, Changxing Pei   +5 more
doaj   +2 more sources

A high-performance 10 mm diameter MEMS fast steering mirror with integrated piezoresistive angle sensors for laser inter-satellite links. [PDF]

Microsyst Nanoeng
This paper presents a compact and high-performance piezoelectric micro-electro-mechanical system (MEMS) fast steering mirror (FSM) designed for use in laser inter-satellite links (ISLs).
Xue W, Liu Y, Zhu X, Wang M, Weng Z, Su Y, Yang Y, Zhao H, Wang Y, Chen H, Wang L, Wu Z.   +11 more
europepmc   +2 more sources

On-Board Federated Learning for Satellite Clusters With Inter-Satellite Links [PDF]

IEEE Transactions on Communications, 2023
The emergence of mega-constellations of interconnected satellites has a major impact on the integration of cellular wireless and non-terrestrial networks, while simultaneously offering previously inconceivable data gathering capabilities.
N. Razmi, Bho Matthiesen, A. Dekorsy, P. Popovski   +3 more
semanticscholar   +1 more source

On Delay Performance in Mega Satellite Networks with Inter-Satellite Links [PDF]

Global Communications Conference, 2023
Utilizing Low Earth Orbit (LEO) satellite networks equipped with Inter-Satellite Links (ISL) is envisioned to provide lower delay compared to traditional optical networks.
Kosta Dakic, C. C. Chan, Bassel Al Homssi, K. Sithamparanathan, A. Al-Hourani   +4 more
semanticscholar   +1 more source

Integrated Access and Backhaul via LEO Satellites with Inter-Satellite Links [PDF]

IEEE Wireless Communications and Networking Conference, 2023
The third generation partnership project (3GPP) has recently defined two frequency bands for direct access with satellites, which is a concrete step toward realizing the anticipated space-air-ground integrated networks.
Zaid Abdullah, Eva Lagunas, S. Kisseleff, F. Zeppenfeldt, S. Chatzinotas   +4 more
semanticscholar   +1 more source