DocumentCode :
881883
Title :
Efficient support of IP multicast in the next generation of GEO Satellites
Author :
Filali, Fethi ; Aniba, Ghassane ; Dabbous, Walid
Author_Institution :
Mobile Commun. Dept., Eurecom Inst., Sophia-Antipolis, France
Volume :
22
Issue :
2
fYear :
2004
Firstpage :
413
Lastpage :
425
Abstract :
Satellites are expected to have an important role in providing the Internet protocol (IP) multicast service to complementing next-generation terrestrial networks. In this paper, we focus on the deployment of IP multicast over the next generation of digital video broadcasting-based geosynchronous earth orbit satellites supporting multiple spot beams and on-board switching technologies. We propose a new encapsulation scheme optimized for IP multicast, which has two distinct modes enabling two alternative on-board switching approaches: the self-switching and the label-switching. We also detail a set of mechanisms and protocols for ground stations, as well as for the on-board processor to allow an efficient multicast forwarding in this type of environment, while reducing the load of control and data messages in the satellite segment, and building efficient multicast delivery trees reaching only the spot beams containing at least one member of the corresponding multicast session. To integrate satellite links in the terrestrial Internet, we present satellite multicast adaptation protocol (SMAP), a protocol which is implemented in satellite stations to process incoming protocol independent multicast-sparse mode (PIM-SM) messages sent by terrestrial nodes to the satellite system. SMAP helps to update the tables required for the mapping between IP packets and MPEG-2 data segments, their switching on board the satellite, and their filtering at the satellite receivers.
Keywords :
IP networks; Internet; data encapsulation; digital video broadcasting; direct broadcasting by satellite; multicast protocols; multiprotocol label switching; program processors; satellite ground stations; satellite links; GEO satellites; IP multicast service; IP packets; MPEG-2 data segments; control load reduction; digital video broadcasting; encapsulation scheme; geosynchronous earth orbit; ground stations; label-switching; multicast delivery trees; multicast forwarding; multiple spot beams; next-generation terrestrial networks; on-board processor; on-board switching technologies; protocol independent multicast-sparse mode messages; satellite links; satellite multicast adaptation protocol; satellite receivers; satellite segment data messages; satellite stations; self-switching; terrestrial Internet; terrestrial nodes; Broadcast technology; Digital video broadcasting; Earth; Encapsulation; IP networks; Multicast protocols; Next generation networking; Satellite broadcasting; Satellite ground stations; Web and internet services;
fLanguage :
English
Journal_Title :
Selected Areas in Communications, IEEE Journal on
Publisher :
ieee
ISSN :
0733-8716
Type :
jour
DOI :
10.1109/JSAC.2003.819994
Filename :
1264085
Link To Document :
بازگشت