Fairhurst, Gorry and Giambene, Gionvanni and Giannetti, Samuele and Sali, Aduwati and Parraga Niebla, Cristina (2009) Cross-Layer Study for Resource Management in DVB-S2 with Mobile Users. International Workshop on Satellite and Space Communications 2009, 10.-11. Sept. 2009, Siena, Italien.
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Recently there has been a renewed interest on mobile communications via satellite. Therefore, the DVB-S2/-RCS standard has been updated with some countermeasures to combat fading effects of the mobile scenario. The focus of this paper is on multimedia traffic management on the DVB-S2 forward link to collective terminals on trains. In our study, we consider ACM, PHY margins, and LL-FEC coding to counteract the time-varying propagation conditions in Ku-band that are very critical for the railway scenario. A multi-layer optimization study is performed in order to maximize TCP goodput by jointly tuning LL-FEC coding and the PHY layer margin. It is shown how, using appropriate parameters, LL-FEC coding can improve the performance of the system. Moreover, the performance of the proposed UBMT scheduler is evaluated in managing CBR and FTP traffic flows. This study has permitted to determine the maximum capacity of CBR flows (guaranteeing a given quality of service level) in the presence of FTP flows.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Cross-Layer Study for Resource Management in DVB-S2 with Mobile Users|
|Date:||10 September 2009|
|In ISI Web of Science:||No|
|Keywords:||link layer FEC, QoS, resource management, mobile users, DVB-S2/RCS|
|Event Title:||International Workshop on Satellite and Space Communications 2009|
|Event Location:||Siena, Italien|
|Event Type:||international Conference|
|Event Dates:||10.-11. Sept. 2009|
|Organizer:||University of Siena|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||other|
|DLR - Research area:||Raumfahrt|
|DLR - Program:||R - no assignement|
|DLR - Research theme (Project):||R -- no assignement|
|Institutes and Institutions:||Institute of Communication and Navigation > Digital Networks|
|Deposited By:||Cristina Parraga Niebla|
|Deposited On:||27 Jun 2012 08:36|
|Last Modified:||27 Jun 2012 08:36|
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