Results 11 to 20 of about 40,526 (211)

An Overview of Channel Models for NGSO Satellites

open access: yes2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall), 2022
Satellite communications industry is currently going through a rapid and profound transformation to adapt to the recent innovations and developments in the realm of non-geostationary orbit (NGSO) satellites. The growing popularity of NGSO systems, with cheap manufacturing and launching costs, has set to revolutionize the internet market.
Victor Monzon Baeza   +3 more
openaire   +3 more sources

Packet-switching in a slotted satellite channel [PDF]

open access: yesProceedings of the June 4-8, 1973, national computer conference and exposition on - AFIPS '73, 1973
Imagine that two users require the use of a communication channel. The classical approach to satisfying this requirement is to provide a channel for their use so long as that need continues (and to charge them for the full cost of this channel). It has long been recognized that such allocation of scarce communication resources is extremely wasteful as ...
Leonard Kleinrock, Simon S. Lam
openaire   +1 more source

SURVEY OF SATELLITE TECHNOLOGIES APPLYING IN WIRELESS SENSOR NETWORKS

open access: yesInformation and Telecommunication Sciences, 2016
Background. There are scenarios of wireless sensor networks application, in which the use of terrestrial communication becomes unacceptable: a considerable distance between the sensor nodes, destruction of land lines during natural disasters and al.
Alexander Lysenko   +3 more
doaj   +1 more source

IP-Level Satellite Link Emulation with KauNet [PDF]

open access: yes, 2009
Distributed applications and transport protocols communicating over a satellite link may react very strongly to conditions specific to that kind of link.
Garcia, Johan,   +12 more
core   +1 more source

La chaîne Misr 25 comme outil médiatique du projet politique des Frères musulmans en Égypte

open access: yesRevue Française des Sciences de l’Information et de la Communication, 2018
This paper aims to study the satellite channel of Muslim Brotherhood (MB), Misr 25, in the period between its establishment in the post january 25 era and until it was shut down by Egyptian authorities in the Summer of 2013.
Maria Adib Doss
doaj   +1 more source

Broadband satellite multimedia [PDF]

open access: yes, 2010
The broadband satellite multimedia (BSM) architecture standardised by ETSI defines a satellite independent service access point (SI-SAP) interface layer that separates the satellite independent features of the upper layers from the satellite dependant ...
Berioli M.   +22 more
core   +1 more source

Evaluation of cross-layer reliability mechanisms for satellite digital multimedia broadcast [PDF]

open access: yes, 2007
This paper presents a study of some reliability mechanisms which may be put at work in the context of Satellite Digital Multimedia Broadcasting (SDMB) to mobile devices such as handheld phones.
Bazile, Caroline   +9 more
core   +1 more source

Iterative Predistortion of the Nonlinear Satellite Channel [PDF]

open access: yesIEEE Transactions on Communications, 2014
Digital Video Broadcasting-Satellite-Second Generation (DVB-S2) is the current European standard for satellite broadcast and broadband communications. It relies on high-order modulations up to 32 amplitude/phase-shift keying (APSK) in order to increase the system spectral efficiency.
Thibault Deleu   +3 more
openaire   +1 more source

Next Generation High Throughput Satellite System [PDF]

open access: yes, 2012
This paper aims at presenting an overview of the state-of-the-art in High Throughput Satellite (HTS) systems for Fixed Satellite Services (FSS) and High Density-FSS.
Vidal, Oriol   +11 more
core   +1 more source

DVB-RCS return link radio resource management for broadband satellite systems using fade mitigation techniques at ka band [PDF]

open access: yes, 2008
Current Broadband Satellite systems supporting DVB-RCS at Ku band have static physical layer in order not to complicate their implementation. However at Ka band frequencies and above an adaptive physical layer wherein the physical layer parameters are ...
Laurent Castanet   +7 more
core   +1 more source

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