Results 71 to 80 of about 86,758,594 (170)

Beyond 5G and Non‐terrestrial Network (NTN) Integrated Architecture: Access Challenges for Expanding Artificial Intelligence of Things (AIoT)

International Journal of Satellite Communications and Networking, Volume 44, Issue 4, Page 378-393, July/August 2026.
ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley   +1 more source

Computational analysis of GEO satellite communication performance [PDF]

E3S Web of Conferences
The paper is a detailed Monte Carlo simulation study of Bit Error Rate (BER) behaviour of the Binary Phase Shift Keying (BPSK) modulation across the Geostationary satellite communication links in the Earth Orbit.
Achar Varun, Naragund Pradeepkumar, P Pughal, V Nataraj   +3 more
doaj   +1 more source

Mission Design and Early Navigation Operations for the Lunar Trailblazer Mission

Earth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Lunar Trailblazer is a smallsat mission launched on 27 February 2025 as a secondary payload with the Intuitive Machines IM‐2 mission. After insertion into a near‐polar circular orbit around the Moon, the mission's goal was to search and characterize lunar water, primarily looking for ice in permanently shadowed craters and water bound in ...
Gregory Lantoine, Julie Bellerose, Andrew D. Cox, Brian Kennedy, Zubin Olikara, Stefano Campagnola, David Garza, Sarah Elizabeth McCandless, Erica Jenson, Burton Yale, Julie Kangas, Mark Ryne, Tomas Martin‐Mur, Aimar Negrete   +13 more
wiley   +1 more source

Deterministic Propagation of Suprathermal Ions Through the Heliosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract The PEPSSI instrument onboard New Horizons is sampling the energy range that bridges pickup and suprathermal He+ ${\mathrm{H}\mathrm{e}}^{+}$ ions for the first time in the outer heliosphere. New Horizons repeatedly encountered structures beyond 30 au that we interpret as the spiral of a corotating interaction region (CIR) for an extended ...
P. Kollmann, E. C. Roelof, M. E. Hill, R. B. Decker, P. Brandt, R. L. McNutt Jr., P. S. Mostafavi, R. Nikoukar, J. W. Parker, K. N. Singer, J. Spencer, A. Stern, A. J. Verbiscer   +12 more
wiley   +1 more source

Satellite-based entanglement distribution and quantum teleportation with continuous variables

, 2023
Advances in satellite quantum communications aim at reshaping the global telecommunication network by increasing the security of the transferred information.
Mikel Sanz (15058255), Tasio Gonzalez-Raya (15058252), Stefano Pirandola (11598638)   +2 more
core   +1 more source

Tensor-Based Channel Estimation Considering Beam Squint Effects in LEO Satellite Communications

IEEE Access
In this paper, we propose a tensor-based channel estimation framework for beam squint-aware low Earth orbit (LEO) downlink communication at a ground station.
Kyungrak Son, Pansoo Kim, Jung Hoon Lee
doaj   +1 more source

Linear Precoding performance analysis in a Broadband satellite system with a 2-color dual-polarization reuse scheme [PDF]

, 2013
The potential of Joint Multiuser Processing in multi-beam satellite systems is assessed in this paper and proved to be a potential attractive alternative to current systems.
Vidal, Oriol, Inigo, Patricia, Lacan, Jérôme, Radzik, José, Alberty, Eric   +4 more
core  

CO measurements from the ACE-FTS satellite instrument: data analysis and validation using ground-based, airborne and spaceborne observations [PDF]

, 2007
The Atmospheric Chemistry Experiment (ACE) mission was launched in August 2003 to sound the atmosphere by solar occultation. Carbon monoxide (CO), a good tracer of pollution plumes and atmospheric dynamics, is one of the key species provided by the ...
Emmons, Louisa, Rinsland, Curtis, Urban, J., E. Mahieu, J. Hannigan, S. Turquety, T. Borsdorff, De Mazière, Martine, Hase, Frank, Stiller, Gabrielle, Schneider, M., Wiacek, A., E. Le Flochmoën, Pazmino, Andrea, M. Coffey, Wiacek, Aldona, N. J. Livesey, Zafra, R. de, Barret, B., J. Drummond, Urban, Jakub, Cammas, Jean-Pierre, R. de Zafra, B. Funke, Walker, Kaley A., Robert, Cédric,, Catoire, Valéry, Catoire, V., Senten, Cindy, Walker, Kaley, Strong, Kimberley, Barret, Brice, A. Pazmino, Y. Kasai, V. Thouret, A. Kagawa, Walker, K.A., Clerbaux, Cathy, M. Höpfner, C. Clerbaux, P.-F. Coheur, Schneider, M, Coheur, P.-F., P. Nédélec, Strandberg, Anders,, Griffith, D.W.T., M. Luo, C. P. Rinsland, R. Sussmann, de Zafra, Robert, Le Flochmoën, E., Murtagh, D., Rinsland, C. P., Höpfner, M., P. Ricaud, Deeter, Merritt, Drummond, James, Clerbaux, Catherine, Hannigan, J., C. Robert, N. Jones, B. Barret, Coheur, P. -F., Funke, Bernd, Eddounia, Fadoua, Kramer, I., N\ue9d\ue9lec, Ph., Jones, Nick, Strandberg, Anders, D. Murtagh, Coheur, Pierre-François, Livesey, N.J., Robert, C., Pumphrey, Hugh, C. Senten, M. López-Puertas, Edwards, David P., Urban, Joachim, Robert, Claude, Hannigan, James W., Dupuy, Eric, I. Kramer, Boone, C., De Maziere, M., Deeter, M., Turquety, Solène, D. P. Edwards, Mahieu, E., Duchatelet, P., Griffith, D. W. T., Dupuy, E., Pumphrey, H., Nédélec, Ph., C. Boone, Mazière, M. De, Hoepfner, Michael, Cammas, J.P., Edwards, D. P., Hannigan, Jim, Murtagh, Donal,, Mahieu, Emmanuel, López-Puertas, M., Sussmann, Ralf, P. Bernath, Sussmann, R., Drummond, J., Le Flochmo\uebn, E., J. Gille, Mazi\ue8re, M. De, Strong, K., Bernath, P., Rinsland, C.P., Urban, Joachim,, Boone, Chris, Kramer, Isabell, F. Eddounia, Eddounia, F., Duchatelet, Pierre, George, M., Coffey, M., M. De Mazière, Hoepfner, M., Kasai, Y., Stiller, G., Höpfner, Michael, A. Wiacek, M. Deeter, Murtagh, Donal, Edwards, David, Kagawa, Akiko, L. Emmons, Walker, K. A., A. Strandberg, Borsdorff, T., M. Schneider, K. Strong, Jones, N., Ricaud, P., Strong, Kimberly, Schneider, Matthias, Hase, F., Bernath, Peter, Cammas, J. P., G. Stiller, Thouret, V., M. George, V. Catoire, Urban, Jo, de Zafra, R., K. A. Walker, Ricaud, Philippe, Turquety, S., L\uf3pez-Puertas, M., Thouret, Valérie, Emmons, L., H. Pumphrey, J. Urban, H\uf6pfner, M., George, Michael, J. P. Cammas, Robert, Cédric, Robert, P. Duchatelet, Murtagh, Donal P., Jones, Nicholas, Coheur, Pierre, D. W. T. Griffith, George, Maya, Boone, Christopher D., Kagawa, A., Rinsland, Curtis P., Gille, J., Funke, B., Livesey, N. J., Lopez-Puertas, Manuel, Griffith, Dave W. T., Clerbaux, C., Luo, M., Borsdorff, Tobias, E. Dupuy, Nedelec, P., Strandberg, A., Coheur, P. F., Pazmino, A., F. Hase, Senten, C., Edwards, D.P.   +185 more
core   +2 more sources

Minimum Link Distance of Terrestrial Testbeds Required to Simulate the Satellite-to-Ground FSO Communication Links

IEEE Photonics Journal
Free-space optical (FSO) communication modules to be mounted on the satellite for satellite-to-ground links need to be tested and confirmed on the ground before they are launched into space.
Woohyeon Moon, Hoon Kim
doaj   +1 more source

A spatial interference minimization strategy for the correlated LTE downlink channel [PDF]

, 2010
In a downlink transmission, users can benefit from the high capacity gain achieved by transmitting independent data streams from multiple antennas to multiple users sharing the same physical time-frequency resources.
Nordin, R, S. Armour, R. Nordin, McGeehan, JP, Armour, SMD, J.P. McGeehan   +5 more
core   +1 more source