Kanagasabapathy Narenthiran

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We investigate the packet-scheduling function within the access scheme of a unidirectional satellite system providing point-to-multipoint services to mobile users. The satellite system may be regarded as an overlay multicast/broadcast layer complementing the point-to-point third generation (3G) mobile terrestrial networks. The satellite access scheme(More)
This paper proposes a complete satellite access network solution for multimedia broadcast multicast service (MBMS) delivery based on the T-UMTS standards. Firstly, the benefits of MBMS delivery via satellite (SAT-MBMS) for both S/T-UMTS network operators are shown via market and business analysis. A new integrated S/T-UMTS architecture for MBMS delivery is(More)
This paper describes the SATIN ground repeater/ intermediate module repeater (IMR) concept, which is nowadays considered as way forward to target the mass market and gives bright future for S-UMTS. Different environmental scenarios for IMRs are highlighted and the expected services for each scenario are identified. Possible functionalities of IMR are(More)
ILIAS ANDRIKOPOULOS, AVRAAM POULIAKIS, AND IOANNIS MERTZANIS, SPACE HELLAS MERKOURIS KARALIOPOULOS, KANAGASABAPTHY NARENTHIRAN, AND BARRY EVANS, UNIVERSITY OF SURREY THIBAULT GALLET, MICHEL DURAND, AND MICHEL MAZZELLA, ALCATEL SPACE JURGEN VANDERMOT AND MICHAEL DIEUDONNÉ, AGILENT TECHNOLOGIES LAURENT ROULLET, UDCAST; ERIC BOURDIN, ERCOM; MICHAEL WOLF,(More)
The EU-IST IP based satellite project, SATIN is presented in this paper. Role of satellite in 3G mobile communications systems is discussed based on success and failure of the first (1G) and second (2G) generation satellite systems. The significant of the SATIN project in terms of present and future market and technology trend is stressed. Objectives and(More)
The synergy between satellite and terrestrial mobile networks is regarded as a promising approach for the delivery of broadcast and multicast services to mobile users. This paper evolves around a hybrid satellite-terrestrial system, featuring a unidirectional satellite component that is responsible fur the delivery of point-to-multipoint services. It(More)
Efficient support of Internet-based applications to mobile/nomadic users is a key feature of the thirdgeneration (3G) networks. In light of the shortage and the high cost of the T-UMTS spectrum, the operators are looking into the provision of integrated broadcast/multicast services through hybrid broadcast-UMTS systems. S-UMTS could play an important role(More)
The need to cope with the mobility of users is very different between mobile and fixed communication systems. Mobility management is thus a key feature in the design of mobile systems. Techniques derived for terrestrial mobile systems cannot be used for mobile satellite systems that use constellations of satellites. A major theme of this thesis is the(More)
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