Title :
The Gap Filler Technology for Mobile Satellite System
Author :
Ryu, JoonGyu ; Han, S.M. ; Shin, Minsu ; Chang, D.I. ; Lee, Ho-Jin
Abstract :
To provide seamless broadband Internet and broadcasting services to passengers of high speed train via satellite link, gap filling is key technology to extend the service coverage in NLOS environment, so to speak, tunnel. The XpeedSAT system is a Ka/Ku band broadband mobile multimedia access system based on DVB-S2/DVB-RCS+M standard for satellite TV, video multicasting, Internet through wireless LAN. In this paper we introduce the various gap filling technologies and compare pros and cons. Finally we propose the gap filling method for NLOS environment in XpeedSAT system.
Keywords :
Internet; broadband networks; digital video broadcasting; direct broadcasting by satellite; mobile satellite communication; multicast communication; multimedia communication; railway communication; wireless LAN; DVB-S2/DVB-RCS+M standard; Ka/Ku band broadband mobile multimedia access system; NLOS environment; XpeedSAT system; broadband Internet; broadcasting service; gap filler technology; high speed train; mobile satellite system; satellite TV; satellite link; video multicasting; wireless LAN; Satellites;
Conference_Titel :
Advanced Satellite Mobile Systems, 2008. ASMS 2008. 4th
Conference_Location :
Bologna
Print_ISBN :
978-1-4244-2160-2
DOI :
10.1109/ASMS.2008.13
