Results 201 to 210 of about 1,766,714 (261)

Delay-Doppler Domain Time-Hopping Key Generation and Security Analysis for Orthogonal Time Frequency Space Satellite Communication Systems. [PDF]

Sensors (Basel)
Li W, Bai Z, Wang J, Xu X, Zhu X.
europepmc   +1 more source

Characterization of Rain Attenuation for Millimeter Wavelengths for Realistic Nonrotational Symmetric Drop Shapes

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The use of frequencies above 30 GHz (millimeter waves) for communication purposes is nowadays a necessity, both for terrestrial (e.g., 5G/6G) and satellite links. One reason is the need for more bandwidth and the fact that “traditional” frequency bands are already fully occupied.
Franz Teschl, Anđela Šević, Merhala Thurai, Michael Schönhuber   +3 more
wiley   +1 more source

Spatial patterns of cattle densities across the Brazilian Amazon revealed by very high-resolution satellite imagery. [PDF]

Commun Sustain
Hodel L, Wegner JD, Garnot VSF, Rocha Gomes FCD, Valentim JF, Garrett RD.   +5 more
europepmc   +1 more source

Routing and Downlink Resource Allocation for Multicast Traffic in LEO Satellite Constellations

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT In this work, we optimize unicast and multicast traffic delivery over non‐terrestrial networks (NTNs) to users on the ground through direct satellite downlink (DL). We consider a gateway‐free mesh architecture with low Earth orbit (LEO) satellites interconnected via inter‐satellite links (ISLs), where unicast and multicast services compete for
Federico Lozano‐Cuadra, Israel Leyva‐Mayorga, Jimmy Jessen Nielsen, Beatriz Soret   +3 more
wiley   +1 more source

Diverse configurations of binary asteroids explained by multi-generation satellites. [PDF]

Nat Commun
Dai WY, Cheng B, Huang Y, Jiao Y, Zhou WH, Ren KY, Agrusa H, Jacobson S, Kokubo E, Charnoz S, Yu Y, Baoyin H, Li J.   +12 more
europepmc   +1 more source

Long‐Term Propagation Measurements in Madrid in a Q‐Band Satellite‐to‐Earth Link

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The Q/V band (40/50 GHz) is gaining interest as satellite operators will need larger bandwidth to be able to provide their services, which are experiencing an increasingly high demand. An accurate characterization of the satellite‐to‐Earth propagation channel is of paramount importance to guarantee a high level of quality of service, by ...
Domingo Pimienta‐del‐Valle, José Manuel Riera, Pedro Garcia‐del‐Pino, Gustavo A. Siles   +3 more
wiley   +1 more source

Satellite Communications

EURASIP Journal on Wireless Communications and Networking, 2007
Donner Anton, Vanelli-Coralli Alessandro, Sheriff Ray E   +2 more
doaj  

Asymmetric basin-wide responses of coastal phytoplankton biomass to the Indian Ocean dipole. [PDF]

Nat Commun
Wang X, Li H, Zhang J, Kao SJ, Zhou F, Ruiz-Pino D, Xuan J, Ding R, Lazar A, Mejia CE, Qiu Y, Zhou X, Wang L, Shou L, Zhu Y, Than WW, Lwin SM, Thu CA, Cai W, Chen J.   +19 more
europepmc   +1 more source

Restoring End‐to‐End Transport With QUIC on Satellite Paths

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Slow Start is a key congestion control mechanism used to assure a safe response to overload of a path across the Internet. This mechanism increases the startup time taken by the sender to reach the capacity available across the path. The benefit becomes significant on paths with a high bandwidth‐delay product.
Matthias Hofstätter, Raffaello Secchi, Gorry Fairhurst, Tomaso de Cola, Kai‐Steffen Hielscher, Reinhard German   +5 more
wiley   +1 more source