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Browsing Departament de Tecnologies de la Informació i les Comunicacions by Title

Browsing Departament de Tecnologies de la Informació i les Comunicacions by Title

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  • Barceló Vicens, Jaume; Inaltekin, Hazer; Bellalta, Boris (Institute of Electrical and Electronics Engineers (IEEE), 2011)
    Contention control is an important means to mitigate adverse affects of multiple access interference on transmitted data packets in wireless communication networks. Most practical contention control mechanisms, e.g., IEEE ...
  • Sayago Barrantes, Sergio; Forbes, Paula; Blat, Josep (Taylor & Francis (Routledge), 2013)
    A growing ageing population and an increasing reliance on Information and Communication Technologies (ICT) to conduct activities associated with daily living means that addressing how older people learn to use ICT is timely ...
  • Fadhil, Ahmed; AbuRa’ed, Ahmed (ACL (Association for Computational Linguistics), 2019)
    We introduce OlloBot, an Arabic conver-sational agent that assists physicians andsupports patients with the care process.It doesn’t replace the physicians, insteadprovides health tracking and support andassists ...
  • Cramer, Ronald; Daza, Vanesa; Gracia, Ignacio; Jiménez Urroz, Jorge; Leander, Gregor; Martí, Jaume, 1943-; Padró, Carles (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    Error-correcting codes and matroids have been widely used in the study of ordinary secret sharing schemes. In this paper, the connections between codes, matroids, and a special class of secret sharing schemes, namely, ...
  • Batard, Thomas; Bertalmío, Marcelo (SIAM (Society for Industrial and Applied Mathematics), 2014)
    We present a generalization of the Euclidean and Riemannian gradient operators to a vector bundle, a geometric structure generalizing the concept of manifold. One of the key ideas is to replace the standard differentiation ...
  • Daza, Vanesa; Morillo, Paz; Ràfols, Carla (Elsevier, 2007)
    Identity-Based cryptography has been proposed in mobile ad-hoc networks (MANETs) to provide security. However, the figure of the Private Key Generator (PKG) is not adequate in the MANET setting, since it may not be reachable ...
  • Biglieri, Ezio; Hong, Yi; Viterbo, Emanuele (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    We focus on full-rate, fast-decodable space–time block codes (STBCs) for 2 x 2 and 4 x 2 multiple-input multiple-output (MIMO) transmission. We first derive conditions and design criteria for reduced-complexity maximum-likelihood ...
  • Sezginer, Serdar; Sari, Hikmet; Biglieri, Ezio (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    The 2×2 MIMO profiles included in Mobile WiMAX specifications are Alamouti’s space-time code (STC) fortransmit diversity and spatial multiplexing (SM). The former has/nfull diversity and the latter has full rate, but neither ...
  • Andriyanova, Iryna; Biglieri, Ezio; Boutros, Joseph Jean (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    This paper presents our investigation on iterative/ndecoding performances of some sparse-graph codes on block-fading Rayleigh channels. The considered code ensembles are standard LDPC codes and Root-LDPC codes, first ...
  • Costa, Albert, 1970-; Vives, Marc-Lluís; Corey, Joanna Darrow, 1986- (SAGE Publications, 2017)
    Recent research has revealed that people’s preferences, choices, and judgments are affected by whether information is presented in a foreign or a native language. Here, we review this evidence, focusing on various ...
  • Ferraro, Andrés; Lemström, Kjell (ACM Association for Computer Machinery, 2018)
    The importance of repetitions in music is well-known. In this paper, we study music repetitions in the context of effective and efficient automatic genre classification in large-scale music-databases. We aim at enhancing ...
  • Jordà Puig, Sergi (Inderscience Enterprises Ltd, 2008)
    This paper explores one of the application domains in which tangible and tabletop interfaces have currently shown more positive results, studying and unveiling the essential reasons that turn live music performance and ...
  • Branzi, Francesca Martina, 1984-; Calabria, Marco; Gade, Miriam; Fuentes, Luis J.; Costa, Albert, 1970- (Cambridge University Press, 2018)
    In one task-switching experiment, we compared bilinguals and monolinguals to explore the reliability of the bilingualism effect on the n-2 repetition cost. In a second taskswitching experiment, we tested another group of ...
  • Daza, Vanesa; Herranz, Javier; Sáez, Germán (Institute of Electrical and Electronics Engineers (IEEE), 2008)
    In a distributed key distribution scheme, a set of servers helps a set of users in a group to securely obtain a common key. Security means that an adversary who corrupts some servers and some users has no information about ...
  • Sayago Barrantes, Sergio; Rosales, Andrea; Righi, Valeria; Ferreira, Susan M.; Coleman, Graham Keith (SAGE Publications, 2016)
    While older people tend to be regarded as actual, or potential, players of digital games within literature on Game Studies, Human-Computer Interaction and Gerontechnologu, they are also often considered non-avid users of ...
  • Barceló Vicens, Jaume; Bellalta, Boris; Cano Bastidas, Cristina; Faridi, Azadeh; Oliver, Miquel (Springer, 2014)
    This paper introduces a protocol that distributively constructs a collision-free schedule for multi-hop packet radio networks in the presence of hidden terminals. As a preliminary step, each wireless station computes the ...
  • Galdran, Adrian; Bria, Alessandro; Álvarez-Gila, Aitor; Vazquez-Corral, Javier; Bertalmío, Marcelo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Image dehazing deals with the removal of undesired lossof visibility in outdoor images due to the presence of fog.Retinex is a color vision model mimicking the ability ofthe Human Visual System to robustly discount varying ...
  • Farrús, Mireia; Garde, Ainara; Ejarque, Pascual; Luque, Jordi; Hernando, Javier (International Speech Communication Association (ISCA), 2006)
    Comunicació presentada a: 9th International Conference on Spoken Language Processing; 17-21 de setembre de 2006 a Pittsburgh, Estats Units d'Amèrica
  • Bellalta, Boris; Checco, Alessandro; Zocca, Alessandro; Barceló Vicens, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Next-generation wireless local area networks (WLANs) will support the use of wider channels, which is known as channel bonding, to achieve higher throughput. However, because both the channel center frequency and the channel ...
  • Schedl, Markus; Gómez Gutiérrez, Emilia, 1975-; Trent, Erika S.; Tkalčič, Marko; Eghbal-Zadeh, Hamid; Martorell Domínguez, Agustín (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    This study deals with the strong relationship between emotions and music, investigating three main research questions: (RQ1) Are there differences in human music perception (e.g., emotions, tempo, instrumentation, and ...

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