Results 51 to 60 of about 40,526 (211)

Airborne-Platform-Assisted Transmission and Control Separation for Multiple Access in Integrated Satellite–Terrestrial Networks

open access: yesSensors
Currently, the primary random access protocol for satellite communications is Irregular Repetition Slotted ALOHA (IRSA). This protocol leverages interference cancellation and burst repetition based on probabilistic distributions, achieving up to 80 ...
Chaoran Huang   +4 more
doaj   +1 more source

Adopting the public on satellite channels

open access: yesAL – Bahith AL – A a‚LAMI, 2021
The importance of television has emerged as an effective and influential force in the lives of societies and peoples, And not just a professional media since the fifties of the twentieth century, It was used as a platform to achieve the goals and objectives of the media and politics for governments, agencies and individuals in different countries of ...
openaire   +1 more source

Power allocation algorithm supporting delay constraints for satellite cognitive radio networks

open access: yes工程科学学报, 2015
A power allocation algorithm supporting delay constrains which maximizes the channel effective capacity of secondary users for satellite "Underlay"cognitive radio networks is proposed to improve the spectrum utilization of a satellite communication ...
XIAO Nan   +5 more
doaj   +1 more source

LTE trials in the return channel over satellite

open access: yes, 2022
S.238-245Integrating terrestrial and satellite communications promises several advantages, whereas the most evident one is that modern satellite networks achieve global coverage using a multiple spot beam architecture.
Krueger, U.   +4 more
core   +1 more source

SNACS – The Satellite Navigation Radio Channel Signal Simulator

open access: yes, 2009
A versatile GNSS signal simulation tool for time-domain simulations at sample-level with a focus on wave propagation effects, such as multipath or atmospheric disturbances, is introduced.
Schubert, Frank   +7 more
core  

Eddies in the southern Mozambique Channel [PDF]

open access: yes, 2004
The Agulhas Current system contains one of the world's strongest western boundary currents, and plays an important part in the warm water path of the global thermohaline circulation.
Srokosz, M.A., Quartly, G.D.
core   +1 more source

The digital role to produce the 3d trademarks for satellites slogans

open access: yesJournal of Architecture, Art & Humanistic Science, 2017
It has become a satellite of specialized and non-specialized rely on broadcastinsignias (INTRO) from time to time, whether before, during or after (Programs, films and advertising) appeared on channel in order to assist the recipient (the viewer) to ...
Nasser Ahmed
doaj   +1 more source

Navigation in multipath environments for suburban applications [PDF]

open access: yes, 2007
In 2002 the German Aerospace Centre (DLR) performed a measurement campaign of the land mobile multipath channel. From this data a channel model was derived that is synthesising the measured channel impulse response. It allows the realistic simulation
Lehner, Andreas, Steingass, Alexander
core  

An Enhanced Multiple Random Access Scheme for Satellite Communications [PDF]

open access: yes, 2012
In this paper, we introduce Multi-Slots Coded ALOHA (MuSCA) as a multiple random access method for satellite communications. This scheme can be considered as a generalization of the Contention Resolution Diversity Slotted Aloha (CRDSA) mechanism. Instead
Bui, Huyen-Chi   +6 more
core   +1 more source

A Tool for Satellite Communications: Advanced DVB-RCS / DVB-S2 System and Protocol Simulator

open access: yes, 2008
A tool has been designed to simulate broadband satellite communication systems and techniques: a system and protocol simulator based on advanced DVB-RCS and DVB-S2 standards.
Boussemart, Vincent   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy