Exploració per autor "Antón Haro, Carles"
Ara es mostren els items 1-17 de 17
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A probabilistic method for blind multiuser detection using array observations
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Rodríguez Fonollosa, Javier (IEEE, 1997)
Text en actes de congrés
Accés obertIn this paper, a blind algorithm for detecting active users in a DS-CDMA system is presented. This probabilistic algorithm relies on the theory of hidden Markov models (HMM) and is completely blind in the sense that no ... -
Adaptive Beamforming for High Bit Rate Services in the FDD Mode of UTRA
Mestre Pons, Francesc X.; Nájar Martón, Montserrat; Antón Haro, Carles; Rodríguez Fonollosa, Javier (Institute of Electrical and Electronics Engineers (IEEE), 1999)
Text en actes de congrés
Accés obertMost time-reference beamforming algorithms suffer from severe beampattern distortion effects when applied to high bit rate services in WCDMA, causing serious performance degradation in terms of output BER, especially at ... -
Algorithms for flexible multi-standard array processing: FDD mode of UTRA
Antón Haro, Carles; Rodríguez Fonollosa, Javier (1999)
Text en actes de congrés
Accés obert -
An adaptative fuzzy logic enhancer for rejection of narrowband interference in DS-Spread Spectrum
Pérez Neira, Ana Isabel; Antón Haro, Carles; Lagunas Hernandez, Miguel A. (1998)
Text en actes de congrés
Accés obertThis work develops a novel adaptive fuzzy line enhancer that, based on a fuzzy basis function expansion, successfully solves the non-linear problem of narrowband interference estimation and rejection in direct sequence-spread ... -
Application of hidden markov models to blind channel estimation and data detection in a gsm environment
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Rodríguez Fonollosa, Javier (1996)
Text en actes de congrés
Accés obertIn this paper, we present an algorithm based on the Hidden Markov Models (HMM) theory to solve the problem of blind channel estimation and sequence detection in mobile digital communications. The environment in which the ... -
Array joint detection for C/TDMA systems in UMTS environments
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Rodríguez Fonollosa, Javier (Institute of Electrical and Electronics Engineers (IEEE), 1998)
Text en actes de congrés
Accés obertTwo array-based schemes for intracell and intercell interference suppression are proposed. In both cases, the spatial and temporal characteristics of the propagation are jointly exploited by placing a narrowband beamformer ... -
Blind channel estimation and data detection using hidden Markov models theory
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Rodríguez Fonollosa, Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-01-01)
Article
Accés obertIn this correspondence, we propose applying the hidden Markov models (HMM) theory to the problem of blind channel estimation and data detection. The Baum–Welch (BW) algorithm, which is able to estimate all the parameters ... -
Blind multiuser detection using hidden markov models theory
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Rodríguez Fonollosa, Javier (BOB WERNER IEEE, 1996)
Text en actes de congrés
Accés obertWe present an adaptive algorithm based on the theory of hidden Markov models (HMM) which is capable of jointly detecting the users in a DS-CDMA system. The proposed technique is near-far resistant and completely blind in ... -
Blind multiuser detection with probabilistic algorithms - application to underwater communications
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Zvonar, Zaran; Rodríguez Fonollosa, Javier (IEEE IEEE, 1997)
Text en actes de congrés
Accés obertIn this paper, two probabilistic adaptive algorithms for jointly detecting active users in a DS-CDMA system are compared. The first one, which is based on the theory of hidden Markov models (HMM) is proposed within the ... -
Codificación de voz multipulso en tiempo real según recomendación GSM 6.10
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián (Universidad de las Palmas de Gran Canaria, 1994)
Comunicació de congrés
Accés obert -
Codificación no parametrica de voz basada en redes neuronales sobredimensionadas
Hernández Abrego, Gustavo Adolfo; Batlle Mont, Eloi; Antón Haro, Carles; Monte Moreno, Enrique (1997)
Text en actes de congrés
Accés obert -
D13.1 Fundamental issues on energy- and bandwidth-efficient communications and networking
Zalonis, Andreas; Polydoros, Andreas; Pascual Iserte, Antonio; Gregori, Maria; Rubio López, Javier; Fosson, Sophie; Matamoros, Javier; Antón Haro, Carles; Zambianchi, Vincenzo; Dardari, Davide; Bassi, Francesca; Chaini, Marco; Duhamel, Pierre; Kieffer, Michel; Karasan, Ezhan; Koseoglu, Mehmet; Chen, Lin; Gomez Viladerbó, Jesús; Kliks, Adrian; Kryszkiewicz, Pawel; Bogucka, Hanna; Oliveira, Carla; Mackowiak, Michal; Correia, Luis M.; Louet, Yves; Zhang, Honggang; Caus, Marius; Pérez Neira, Ana Isabel; Sanguinetti, Luca; Boukhatem, Lila; Martin, Steven; Ali Yahiya, Tara; Pérez Romero, Jordi; Koutlia, Katerina; Agustí Comes, Ramon; Dimitriou, Nikos; Stupia, Ivan; Vanderdorpe, Luc; Bacci, Giacomo; Andreotti, Ricardo; Giannetti, Filipo; Lottici, Vincenzo; del Fiorentino, Paolo; Belmega, Veronica; Lasaulce, Samson; Giupponi, Lorenza; Verdone, Roberto; Abrignani, Melchiorre Danilo (2014-03)
Report de recerca
Accés obertThe report presents the current status in the research area of energy- and bandwidth-efficient communications and networking and highlights the fundamental issues still open for further investigation. Furthermore, the ... -
Implementación sobre TMS320C31 del codificador de voz "Half rate" descrito en la recomendación GSM 6.20
Antón Haro, Carles; González, Jaime; Rodríguez Fonollosa, José Adrián (1997)
Text en actes de congrés
Accés obert -
On the inclusion of channel's time dependence in a hidden Markov model for blind channel estimation
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Rodríguez Fonollosa, Javier (BOB WERNER IEEE COMPUTER SOCIETY PRESS, 1996)
Text en actes de congrés
Accés obertWe introduce several modifications to the Baum&Welch (BW) formulas used to reestimate the parameters of a hidden Markov model (HMM). The estimated parameter is the channel impulse response (CIR) of a communication system ... -
On the inclusion of channel's time dependence in a hidden Markov model for blind channel estimation
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Faulí Prats, Claudio; Rodríguez Fonollosa, Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-05-31)
Article
Accés obertIn this paper, the theory of hidden Markov models (HMM) is applied to the problem of blind (without training sequences) channel estimation and data detection. Within a HMM framework, the Baum–Welch(BW) identification ... -
Performance evaluation of interference cancellation techniques using adaptive antennas
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Rodríguez Fonollosa, Javier (IEEE Vehicular Technology Society, 1998)
Text en actes de congrés
Accés obertTwo array-based algorithms, which jointly exploit or compensate for the spatial and temporal characteristics of the propagation channel, are proposed for intercell interference suppression in UMTS scenarios. The first one ... -
Probabilistic algorithms for blind adaptive multiuser detection
Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Zvonar, Zoran; Rodríguez Fonollosa, Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-11-30)
Article
Accés obertIn this paper, two probabilistic adaptive algorithms for jointly detecting active users in a DS-CDMA system are reported. The first one, which is based on the theory of hidden Markov models (HMM’s) and the Baum–Wech ...