Title :
A closed-loop transmission control mechanism for satellite interactive services
Author :
Gardikis, G. ; Breaban, D. ; Brad, S. ; Kourtis, A.
Author_Institution :
I.I&T, Nat. Centre for Sci. Res. "Demokritos", Athens
Abstract :
The second-generation digital satellite broadcasting system (DVB-S2) offers not only increased efficiency in static transmission schemes, but also provides adaptability for time-varying propagation environments via the ACM (adaptive coding and modulation) feature. This paper analyses the efficiency of a closed-loop transmission control scheme in an interactive DVB-S2/DVB-RCS network providing triple-play services. A satellite resource management system is proposed, which receives reception quality feedback from end-users in order to adapt in real-time the downlink transmission scheme. Since the capacity of the downlink changes, a cross-layer adaptation scheme is employed to adapt the bandwidth of the offered services.
Keywords :
artificial satellites; closed loop systems; direct broadcasting by satellite; satellite links; adaptive coding; adaptive modulation; closed-loop transmission control; downlink transmission; reception quality feedback; satellite interactive service; satellite resource management system; second-generation digital satellite broadcasting system; static transmission; time-varying propagation; triple-play service; Adaptive coding; Digital modulation; Digital video broadcasting; Downlink; Feedback; Modulation coding; Real time systems; Resource management; Satellite broadcasting; Time varying systems;
Conference_Titel :
Automation, Quality and Testing, Robotics, 2008. AQTR 2008. IEEE International Conference on
Conference_Location :
Cluj-Napoca
Print_ISBN :
978-1-4244-2576-1
Electronic_ISBN :
978-1-4244-2577-8
DOI :
10.1109/AQTR.2008.4588755
