Title :
Adding different levels of QoS to the DVB-SH standard
Author :
Vargas, Aharon ; Breiling, Marco ; Gerstacker, Wolfgang H. ; Stadali, Holger ; Eberlein, Ernst ; Heuberger, Albert
Author_Institution :
Fraunhofer Inst. for Integrated Circuits (IIS), Erlangen, Germany
Abstract :
We propose and analyze two strategies to provide different levels of quality of service (QoS) to the DVB-SH standard. An extension of the interleaving scheme is investigated to support low latency service requirements for interactive services based on short messages. The first approach is a straightforward extension of the DVB-SH interleaver scheme based on an early-uniform interleaver profile, and the second one is the introduction of a super short interleaver, referred to as molded interleaver, which is embedded inside the standard DVB-SH interleaver. An exhaustive analysis, based on laboratory measurements, shows the benefits of the molded interleaver. Finally a comparison between the modified interleaving strategy and the use of hierarchical modulation is presented.
Keywords :
digital video broadcasting; modulation; quality of service; telecommunication standards; DVB-SH interleaver scheme; DVB-SH standard; QoS; hierarchical modulation; interleaving scheme; low latency service requirements; molded interleaver; quality of service; super short interleaver; Decoding; Delay; Digital video broadcasting; Modulation; Multiplexing; Receivers; Satellites;
Conference_Titel :
Advanced satellite multimedia systems conference (asma) and the 11th signal processing for space communications workshop (spsc), 2010 5th
Conference_Location :
Cagliari
Print_ISBN :
978-1-4244-6831-7
Electronic_ISBN :
978-1-4244-6832-4
DOI :
10.1109/ASMS-SPSC.2010.5586882
