A Survey on Mobile Satellite Systems (original) (raw)
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S-Band: A New Age in Mobile Satellite Services
2008 4th Advanced Satellite Mobile Systems, 2008
The launch in early 2009 of the first satellite with an S-band payload serving Europe will open the way to a new set of mobile services. This paper contains updated information on this new exciting project, and in particular on the future mobile applications that will benefit from this innovative satellite. A survey of the associated technologies and their likely availability is also performed, as well as an analysis of the regulatory issues and the business perspectives towards this new market.
System design for pan-European MSS services in S-band
2010
This paper gives an overview of a suitable communications system capable of efficiently use the available S-band allocation for pan-European Mobile Satellite Services (15 MHz in both uplink and downlink for each of the two licensed operators) to provide different classes of services such as interactive mobile broadcast services enhancing DVB-SH offer, messaging services for handheld and vehicular terminals, realtime emergency services such as voice and file transfer, mainly addressing institutional users on-the-move such as fire brigades, civil protections, etc... The design is based on a modular, flexible and scalable system architecture enabling different channelizations and frequency allocations within each beam, allowing independent deployment of different service classes within different beams, whilst ensuring backward compatibility with DVB-SH legacy terminals.
International Journal of Satellite Communications, 1999
Current frequency allocations for non-geostationary mobile-satellites (NGSO-MSS) are all below 1 GHz, a very crowded portion of the radio frequency spectrum. To the extent that feeder links to satellites in that service can use frequencies in bands above 1 GHz, the demand for additional spectrum below that point will be lessened. Feeder links can use higher bands that would be less desirable, or even unusable, for service links to the large number of small, low-power, user terminals with low-gain antennas envisaged for this service. Two possible bands above 1 GHz, 1390}1393 MHz and 1429}1432 MHz, are close to the 1400}1427 MHz band that is important to two passive (non-radiating) science services. To the extent that out-of-band emissions from NGSO MSS systems can be reduced to levels acceptable to the science services, the e$ciency of use of orbit and spectrum resources can be increased.
EURASIP Journal on Wireless Communications and Networking, 2007
We are delighted to bring to you this special issue on satellite communications, which we have prepared as part of the spreading of excellence remit of the satellite communications network of excellence (SatNEx). The SatNEx project, which began in 2004, is funded for five years under the European Union's Sixth Framework Programme (FP6) Information Society Technologies (IST) Thematic Area. Led by the German Aerospace Center, SatNEx brings together a network of 24 partners, distributed throughout Europe, with membership drawn from ten countries.
Network design consideration of a satellite-based mobile communications system
1986
The concept o f mobile communications via a geosynchronous satellite has been proposed in recent years. Twelve companies have filed applications with the Federal Communications Commission to offer nationwide Mobile Satellite Services (MSS). Chis paper addresses several technical issues related to MSS from the network design point o f view. MSAT-X, which stands for the Mobile Satellite Experiment, is the task assigned to the Jet Propulsion Laboratory by the United States National Aeronautics and Space Administration to develop low-cost, spectral-efficient, satellite-based mobile communications technologies for 1990's. A1 though the discussions and recommendations presented in this paper are 1 imi ted to MSAT-X, technologles developed under MSAT-X may be o f the utmost importance to the first generation MSS. with the National Aeronautics and Space Administration.
Broadband Mobile Satellite Services: The Ku-band Revolution
Signals and Communication Technology, 2008
In this paper we analyze the emergence of new system architectures and products that are able to deliver broadband services into mobile environments using Ku-band. In particular, we analyze the latest technological solutions that have been developed to cope with the stringent requirements of a mobile environment. Such solutions have brought broadband to environments such as business jets, commercial aircrafts, trains, and cars, which are today the new frontiers where broadband MSS can be offered.
Satellites in UMTS and BISDN: status of activities and perspectives
Electronics & Communication Engineering Journal, 1994
Satellites are no longer seen as an alternative to a terrestrial mobile telecommunications system or the (optical-fibre-based) integrated broadband communications network. Instead they are now being considered as one of the components of the Universal Mobile Telecommunications System being developed within the European Union's RACE Programme for the next century and as a component of the broadband ISDN. This paper discusses the role played by satellites in these systems and the issues which have t o be addressed. Principal abbreviations ATM = asynchronous transfer mode B-ISDN = broadband integrated services digital CFS = common functional specification ETSI = European Telecommunication Standards Institute GSM = Global Mobile System IBC = integrated broadband communications OBP = on-board processing RACE = Research in Advanced Communications for Europe RC = reference configuration UMTS = Universal MobileTelecommunication System network