S-DMB System Architecture and the MoDiS Demo (original) (raw)
Related papers
IEEE Communications Magazine, 2000
A variety of hybrid systems combining thirdgeneration mobile communication networks with broadcast systems have been proposed for the delivery of multimedia broadcast multicast services (MBMS) to mobile users. The article discusses one of these alternatives, which involves the use of a geostationary satellite component for MBMS delivery. In particular, it proposes a radio access scheme for the satellite component of the system that features maximum commonalties with the standardized T-UMTS WCDMAbased interface. The ultimate advantage of this approach is more efficient delivery of MBMS as far as the mobile network operator is concerned. The required adaptations at the interface layers are described, and the radio resource management strategy that fulfills the particular requirements of the satellite system is presented.
IEEE Transactions on Vehicular Technology, 2000
This paper provides an overview of the advanced S-UMTS testbed (ATB; S-UMTS = satellite universal mobile telecommunication system) project that is funded by the European Space Agency, which was instrumental to define, validate, and demonstrate the adaptations of third-generation (3G) mobile technologies based on wideband code-division multiple access (W-CDMA) for supporting via-satellite services. Such services are often generically referred to as S-UMTS. One of the main project targets was to develop and demonstrate, in the laboratory and over the air, a set of technical solutions for the efficient provision of point-to-point (PTP, i.e., interactive) and point-to-multipoint (PTM, i.e., multicasting/broadcasting) services to best exploit the precious satellite communications resources. With respect to previous work, which was mostly devoted to the connection-oriented mode (i.e., circuit basis), particular emphasis was dedicated to optimizing solutions for the connectionless modes (i.e., packet basis and reliable multicasting/ broadcasting, both real time and nonreal time). As a matter of fact, the wide-area delivery of multimedia services to mobile users is expected to represent the most important commercial opportunity for S-UMTS systems, as witnessed by recent initiatives taking place in the United States, Korea, and Japan. After dwelling on the aims of the ATB project, this paper presents the key required adaptations and extensions, for satellite applications, to the W-CDMA scheme as standardized by the Third Generation Partnership Project for terrestrial applications. This paper then continues by describing the architecture of the real-time end-toend testbed (taking the name ATB after the project name), which was developed with the main objective of supporting laboratory and over-the-air trials, and its main constituting elements. In a companion paper, the architecture of the overall via-satellite demonstrator, which is largely based on the ATB, is addressed, together with the key results of the laboratory and over-the-air trials.
The Use of Novel Satellite Broadcast Technologies for the Provision of Integrated Services
IP Networking over Next- …, 2008
Digital satellite broadcasting, primarily targeted to unidirectional services, soon expanded to the interactive domain, utilising uplink technologies such as DVB-RCS. In this context, due to their wide and uniform coverage, satellites can provide an ideal medium for the provision of triple play services (voice, video and data) to remote areas not covered by terrestrial infrastructures. This paper discusses and demonstrates the delivery of triple play services over a fully functional platform utilising the second-generation satellite broadcasting technology (DVB-S2) for the downlink combined with DVB-RCS for the uplink.
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.
Wireless Personal Communications, Special Issue on “High Altitude Platform (HAP) Systems: Technologies and Applications”, Springer, Vol. 32, N. 3-4, pp. 195-213, 2005
New-generation telecommunications systems are expected to meet the rising user exigencies of mobility and ubiquitous access to multimedia services. As a consequence, 3GPP consortium has introduced the Multimedia Broadcast and Multicast Service (MBMS) concept into 3G/beyond-3G networks. Supporting MBMS in next generation hybrid wireless platforms becomes a challenging issue due to high traffic load deriving from both signaling message exchange and data transmission between multicast sources (BM-SC) and end users. Therefore, in this context, key research issues are surely: effective exploitation of the limited radio spectrums available, coordination of users accessing radio resources, as well as provisioning of desired QoS guarantees. Given the high mobility profiles typical of UMTS users, it clearly appears that the cited target performance can only be achieved through networking solutions based on an overlapped terrestrial-HAP-satellite coverage. An inter-working scenario where HAPs operate in synergy with the UMTS terrestrial and satellite segments seems to be the most promising solution to provide mobile users with MBMS services. Our work, dealing with architectural design options, takes into account many metrics relevant to aspects, such as: frequency allocation, costs in terms of resource utilization, signaling traffic load, number and location of customers, reliability, possible retransmission paths, user mobility, and QoS.
Mobile broadband everywhere : the satellite a solution for a rapid and large 3,9G deployment
The aim of this paper is to demonstrate the feasibility of the concept of a complementary Satellite Component to the LTE (3GPP Long-Term Evolution, also known as 3,9G) and/or WiMAX (Worldwide Inter-operability for Microwave Access) terrestrial network that mobile network operators intend to deploy to support a mass market offer of "Internet connectivity while on the move" and to show its benefit in ensuring truly global coverage. In this paper, we show that the cohabitation of the terrestrial network and the satellite at the same frequency on the same global coverage is possible.
UMTS integration with satellite component design, protocol architecture and performance analysis
2005
Third generation network (UMTS) is aiming at the realisation of a global coverage and seamless services with enormous variety of applications and interactive services. One of their service objectives is to achieve global Roaming of UMTS users, and hence provide rapid deployment of UMTS services over large geographical areas so increase the development of telecommunication services in growing and developing countries. To achieve this goal, satellite component will play a primordial role in order to extend and enhance the existent UMTS Terrestrial Radio Access Network (UTRAN), so it will be referred to as UMTS Satellite Radio Access Network (USRAN) . UMTS involves a satellite segment which complements the terrestrial one to offer a global mobile communication service. In this paper we describe two alternatives network architectures for satellite integration with UMTS Terrestrial Radio Access Network and their respective protocols stacks. Performance analysis and testing were done using NS2 simulator for voice application as well as for data transfer application.
Mobility Management in the Satellite Access Network to UMTS
The Universal Mobile Telecommunication System (UMTS) will appeal to the existing cordless, paging and cellular markets and to the emerging satellite personal communications market by allowing standard delivery of a diverse range of communication services to people, no matter where they are. Satellite communications will feature as the preferred mode of access to rural and remote regions as well as being a means to rapidly deploy UMTS service at the initial commercial roll-out of UMTS networks. Race Monet, in conjunction with Race Saint, have developed a mobile network architecture capable of providing UMTS services through a wide variety of satellite networks in the same way as it provides service to a wide variety of terrestrial radio environments (public, business, domestic). This paper presents the features of the UMTS system specification relative to the mobility management in the satellite access network. We give a definition of the location area that allows similar routing and location updating procedures as in the terrestrial cellular case. Finally, several intelligent paging options are presented, together with an analytical comparison of their performances.