Results 11 to 20 of about 35,355 (308)

Satellite Communications

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
The call for papers resulted in a high number of submis- sions, from which we have been able to select 12 excellent papers dealing with the different aspects of satellite commu- nications and navigation. Multiple-input multiple-output (MIMO) techniques are attracting a considerable amount of attention from within the terrestrial wireless community. The
Alessandro Vanelli-Coralli   +2 more
doaj   +3 more sources

DTN for LEO satellite communications

open access: yes, 2011
Satellite communications are an interesting and promising application field for Delay/Disruption Tolerant Networking (DTN). Although primarily conceived for deep space communications and sensor networks, it was immediately recognized that DTN was ...
CAINI, CARLO   +3 more
core   +2 more sources

Trends in satellite communications [PDF]

open access: yes2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333), 2003
Satellite communications exhibit a tremendous growth due to three main elements: interactivity, coverage and bandwidth asymmetry. The paper explores some of the current trends in the development of next generation satellite systems by analyzing several aspects: from orbital tracks to technology, from services to business opportunities.
DEL RE, ENRICO   +2 more
openaire   +2 more sources

Design and Implementation of the Mission Planning Functions for the KOMPSAT-2 Mission Control Element [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2003
Spacecraft mission planning functions including event prediction, mission scheduling, command planning, and ground track display have been developed for the KOMPSAT-2 mission operations.
Byoung-Sun Lee, Jae-Hoon Kim
doaj   +1 more source

Peak-to-Average Power Ratio of Multicarrier Faster-Than-Nyquist Signals: Distribution, Optimization and Reduction

open access: yesIEEE Access, 2018
Multicarrier faster-than-Nyquist (MFTN) is a spectral efficient transmission scheme for future communication systems. However, as one of the most important drawbacks of multicarrier transmission systems, the peak-to-average power ratio (PAPR) of MFTN ...
Aijun Liu   +5 more
doaj   +1 more source

Analysis of the Motion of a Tether-Perturbed Satellite [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2003
The motion of each satellite in a tethered satellite system is non-Keplerian in the Earth's gravitational field. In this paper, the tether perturbation force is formulated and compared with the perturbation force due to the Earth's oblateness.
Sungki Cho, Jaehoon Kim
doaj   +1 more source

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

Research Trends in Direct Satellite Communications Technology with Smart Terrestrial Equipment: A Scien-tometric Analysis in Scopus [PDF]

open access: yesپژوهشنامه علم سنجی
Purpose: Direct satellite communication with ground-based devices, as an emerging technology in the satellite communications field, has garnered significant interest from the space industry in recent years.
Marzieh Ahmadi   +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

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

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