Cristina Parraga Niebla

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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,(More)
This paper deals with the analysis of advanced fade countermeasures for supporting DVB-S2 reception by mobile terminals mounted on high-speed trains. Recent market studies indicate this as a potential profitable market for satellite communications, provided that integration with wireless terrestrial networks can be implemented to bridge the satellite(More)
S-band satellite mobile broadcast systems are intended for reception of audio, video, and multimedia content by handheld or vehicle-mounted mobile devices. Complementary terrestrial transmitters can improve reception (e.g., in dense urban areas). Several systems are in operation in different parts of the world, and others are planned [1, 2]. A low-rate(More)
Satellite systems are a valid alternative to cover wide areas on the earth and to provide broadband communications to mobile and fixed users. Satellite systems should be able to provide to mobile users the same access characteristics of the terrestrial counterparts. This paper investigates packet scheduling aspects for Satellite Universal Mobile(More)
The railroad satellite channel is characterized by frequent signal outages due to tunnels, bridges and electrical trellises. While for medium/long tunnels the main option to offer reliable and uninterrupted connectivity deals with the adoption of gap-filling techniques, signal outages due to small bridges/tunnels or electrical trellises can be faced with(More)
In this paper, the design of a new very short frame introduced in the upcoming version of DVB-RCS standard targeting interactive mobile services will be described. The frame design with a special focus on channel coding and performance are addressed in detail, as well as an evaluation of the QoS performance for realistic traffic scenarios, propagation(More)
In this paper, we study the provision of broadband interactive services to passengers of Korean High-speed train in the ISM 2.4 GHz band. We address in particular the design of tunnel gap-fillers (GFs) able to provide bi-directional connectivity to train-based terminals. The work has been developed in the broader context of interactive services provision(More)
Contributors: Khalid Al-Begain, Ivano Alocci, Luis Orozco Barbosa, Boris Bellalta, Tudor Blaga, Chris Blondia, Fernando Boavida, Gennaro Boggia, Pietro Camarda, Cristina Cano, Maxweel Carmo, Chrysostomos Chrysostomou, Luca De Cicco, Marius Cinteza, Pedro Cuenca, Marília Curado, Francisco M. Delicado, Jesús Delicado, Virgil Dobrota, Alexander N. Dudin, José(More)