Results 21 to 30 of about 15,864 (98)

A flexible LEO satellite modem with Ka‐band RF frontend for a data relay satellite system

open access: yesInternational Journal of Satellite Communications and Networking, Volume 38, Issue 3, Page 301-313, May/June 2020., 2020
The paper describes the system architecture of a geostationary data relay satellite system and the development of Ka‐band low‐Earth orbit satellite and ground station modems in hardware and software. Our approach allows serving several small and inexpensive low‐Earth orbit satellites at the same time, both with low rate telemetry/telecommand links and ...
Zoltán Katona   +6 more
wiley   +1 more source

On the Trade-off Between Spectrum Efficiency with Dedicated Access and Short End-to-End Transmission Delays with Random Access in DVB-RCS2 [PDF]

open access: yes, 2013
This paper analyses the performance of TCP over random and dedicated access methods in the context of DVB-RCS2. Random access methods introduce a lower connection delay compared to dedicated methods.
Emmanuel Lochin   +9 more
core   +1 more source

Comparison of 5G NR and DVB-S2X/RCS2 technologies in broadband satellite systems [PDF]

open access: yes, 2023
This thesis compares the Fifth Generation New Radio (5G NR) standard in Non-terrestrial Networks (NTN) and Digital Video Broadcasting (DVB) standards Second Generation Satellite Extensions (S2X) and Return Channel via Satellite 2 (RCS2).
Huikko, Tuomas
core  

Introduction Special Issue on DVB‐RCS2 [PDF]

open access: yesInternational Journal of Satellite Communications and Networking, 2013
INTRODUCTIONDVB-RCS is really the first and only broadband satellite communications standard. With workstarted already in 1998 and the first version approved in the DVB project already in 1999—10years ago—we are already talking of a mature technical specification.
openaire   +1 more source

Performance analysis of time slicing in DVB-H [PDF]

open access: yes, 2004
TV is the biggest media and the last one missing from mobile phones. Digital Video Broadcasting for Handhelds (DVB-H) is the latest development from the DVB Project targeting handheld, battery powered devices such as mobile telephones, PDAs(Personal ...
Itagaki, T   +4 more
core   +4 more sources

Performance of Resource Management Techniques for Weather‐Impacted Satellite Networks

open access: yesJournal of Computer Networks and Communications, Volume 2019, Issue 1, 2019., 2019
Signals transmitted via satellite networks at high frequency in the Ka, Q, and V bands are susceptible to degradation due to rain attenuation. Adaptive transmission techniques are usually employed to mitigate the effect of rain and improve users’ quality of service (QoS) but the effectiveness of these techniques hinges on the accuracy with which rain ...
Olugbenga Emmanuel Imole   +2 more
wiley   +1 more source

A survey of handover algorithms in DVB-H [PDF]

open access: yes, 2007
Digital Video Broadcasting for Handhelds (DVB-H) is a standard for broadcasting IP Datacast (IPDC) services to mobile handheld terminals. Based on the DVB-T standard, DVB-H adds new features such as time slicing, MPE-FEC, in-depth interleavers ...
Owens, TJ, Yang, XD, Vare, J
core   +1 more source

Performance Assessment using ACM in DVB-S2/Advanced DVB-RCS Satellite Systems [PDF]

open access: yes, 2009
This paper presents the benefits of using adaptive coding and modulation in DVB-S2/advanced DVB-RCS satellite systems. The results are based on a satellite system simulator which was developed during an ESA study.
Boussemart, Vincent   +3 more
core   +1 more source

Satellite Return Link Resource Allocation Strategy Based on DVB-RCS2

open access: yesJournal of Physics: Conference Series, 2023
Abstract This article improves the priority of the request queue packets for the Return Channel Satellite Terminal (RCST) of the Geosynchronous Earth Orbit (GEO) satellite system. It designs an inverted numbered slot tree resource allocation algorithm based on the Request Queue Maximum Weighted Delay Priority Algorithm (RQM-LWDF) in ...
Yawen Wang   +5 more
openaire   +1 more source

Design issues for the Generic Stream Encapsulation (GSE) of IP datagrams over DVB-S2 [PDF]

open access: yes, 2007
The DVB-S2 standard has brought an unprecedented degree of novelty and flexibility in the way IP datagrams or other network level packets can be transmitted over DVB satellite links, with the introduction of an IP-friendly link layer - he continuous ...
Buret, Isabelle   +3 more
core   +1 more source

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