Title :
Analytical and Experimental IP Encapsulation Efficiency Comparison of GSE, MPE, and ULE over DVB-S2
Author :
Mayer, A. ; Collini-Nocker, B. ; Vieira, F. ; Lei, J. ; Castro, M. A Vázquez
Author_Institution :
Salzburg Univ., Salzburg
Abstract :
Transmitting variable-length network layer (IP) packets over satellite links with fixed frame lengths (or lengths depending on the ACM transmission mode) requires (IP) encapsulation. For DVB-S links with fixed-size 188-byte TS packets, MPE and ULE encapsulations are available. DVB-S2 provides a compatibility mode to pack TS packets into the longer base band frames (BBFrames). Thus MPE and ULE are also available for S2, as well as a native generic stream encapsulation (GSE), avoiding the double overhead of TS and BBFrame encapsulation. The present paper gives a short overview on the available encapsulation protocols for DVB-S2, and then provides a mathematical efficiency calculation model for these encapsulations, in order to allow for performing theoretical efficiency simulations. Comparison graphs of the efficiency values are presented, using both the efficiency models and measurements from real satellite traffic.
Keywords :
IP networks; data compression; data encapsulation; digital video broadcasting; direct broadcasting by satellite; frame relay; packet radio networks; protocols; ACM transmission mode; DVB-S2; GSE; IP encapsulation efficiency; IP packets; MPE; ULE; base band frames; compatibility mode; generic stream encapsulation; transmitting variable-length network layer; Artificial satellites; Digital video broadcasting; Encapsulation; Modeling; Protocols; Satellite broadcasting; Systems engineering and theory; TV broadcasting; Telecommunication computing; Traffic control; DVB-S2; Encapsulation; GSE; MPE; ULE;
Conference_Titel :
Satellite and Space Communications, 2007. IWSSC '07. International Workshop on
Conference_Location :
Salzburg
Print_ISBN :
978-1-4244-0938-9
Electronic_ISBN :
978-1-4244-0939-6
DOI :
10.1109/IWSSC.2007.4409401
