Results 251 to 260 of about 4,358,865 (294)

Hermes: Fast Semi-Asynchronous Federated Learning in LEO Constellations

IEEE Wireless Communications and Networking Conference
Recent advances in space technology have prompted the emergence of numerous Low Earth Orbit (LEO) satellites, producing mega-constellations that can pro-vide global network coverage and collect massive distributed data, bringing new opportunities for ...
Yan Chen, Jun Liu, Jiejie Zhao, Guanjun Jiang, Haiquan Wang, Bowen Du   +5 more
semanticscholar   +1 more source

NDN in large LEO satellite constellations

Proceedings of the 8th ACM Conference on Information-Centric Networking, 2021
Large low Earth orbit (LEO) satellite constellations are intended to provide global low-latency high-bandwidth Internet connectivity. Due to their large scale and high mobility nature, networking is a big challenge. In this paper, we investigate applying Named Data Networking (NDN) to this scenario.
Teng Liang, Zhongda Xia, Guoming Tang, Yu Zhang 0036, Beichuan Zhang 0001   +4 more
openaire   +1 more source

A Routing and Wavelength Assignment Algorithm Based on Two Types of LEO Constellations in Optical Satellite Networks

Journal of Lightwave Technology, 2020
Research on LEO inter-satellite laser communication based on wavelength division multiplexing inter-satellite links and its routing and wavelength assignment (RWA) technology is an important way to solve the problem of low-latency, high-capacity, high ...
Xue Sun, Suzhi Cao
semanticscholar   +1 more source

Receiver Diversity in LEO Satcom Constellations

MILCOM 2022 - 2022 IEEE Military Communications Conference (MILCOM), 2022
Matthew Gaydos, Frederick J. Block, Thomas C. Royster IV, David J. Love   +3 more
openaire   +1 more source

A Study of Constellation for LEO Satellite Network

22nd AIAA International Communications Satellite Systems Conference & Exhibit 2004 (ICSSC), 2004
For a LEO constellation system, it is important to optimize the orbit parameters to maximize the quality of communication service. At the Next-generation LEO System (NeLS) Research Center, the LEO parameters were evaluated for a mobile satellite communication system. A 2π constellation was selected to maintain a stable inter-satellite link (ISL).
Ryutaro Suzuki, Shigeru Motoyoshi, Yasuhiko Yasuda   +2 more
openaire   +1 more source

LEO satellite constellation performance analysis

Proceedings of MILCOM '93 - IEEE Military Communications Conference, 2002
To date, radio frequency crosslinks have been the preferred communication medium for low Earth orbit (LEO) satellite networks. However, laser crosslinks in satellite constellations introduce many new and interesting research problems not addressed in these conventional methods.
C. Ward, T. Phillips, T. Chang, A. Khan, P.R. Acuff   +4 more
openaire   +1 more source

Polar LEO Satellite Constellation Measurement by Delay Probing

2006 IEEE International Performance Computing and Communications Conference, 2006
Low Earth orbit (LEO) satellite networks are capable of providing wireless connectivity seamlessly and continuously to any part of the world with guaranteed short round-trip propagation delay. As a key part of next generation network (NGN) infrastructure, next generation satellite networks are expected to support a variety of applications with diverse ...
Junfeng Wang, Hongxia Zhou, Fanjiang Xu, Mingtian Zhou   +3 more
openaire   +1 more source

Navigation services from LEO constellations

2022
Current generation satellite-based navigation systems have been typically located in Middle Earth Orbit (MEO) to achieve a convenient trade-off between number of spacecraft required for coverage and launch costs and signal power issues. The rapid spread of very large constellations in Low Earth Orbit (LEO), with hundreds or more satellites, is changing
Palmerini G. B., Kapilavai P.
openaire   +1 more source

Demand Island Routing for LEO satellite constellations

Computer Networks, 2023
Oren Markovitz, Michael Segal 0001
openaire   +1 more source

PNT Through Optimised LEO Constellation and INS

ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2022
More H., Gerardi R., Stallo C., De Sanctis M., Cianca E.   +4 more
openaire   +1 more source