Browsing by Author "Fernández Rubio, Juan Antonio"
Now showing items 1-20 of 59
-
A Game Theoretical algorithm for joint power and topology control in distributed WSN
(2009)
Conference lecture
Open AccessIn this paper, the issue of network topology control in wireless networks using a fully distributed algorithm is considered. Whereas the proposed distributed algorithm is designed applying game theory concepts to design ... -
A non-extensive maximum entropy based regularization method for bad conditioned inverse problems
(1998-08)
Article
Restricted access - publisher's policyA regularization method based on the non-extensive maximum entropy principle is devised. Special emphasis is given to the q=1/2 case. We show that, when the residual principle is considered as constraint, the q=1/2 generalized ... -
A non-extensive maximum entropy based regulations method for bad conditioned inverse problems
(1998-01)
Article
Open AccessA regularization method based on the non-extensive maximum entropy principle is devised. Special emphasis is given to the q=1/2 case. We show that, when the residual principle is considered as constraint, the q=1/2 generalized ... -
A polynomial rooting approach for synchronization in multipath channels using antenna arrays
(2000-08)
Article
Open AccessThe estimation of the delay of a known training signal received by an antenna array in a multipath channel is addressed. The effect of the co-channel interference is taken into account by including a term with unknown ... -
A reduced-complexity and asymptotically efficient time-delay estimator
(ICASSP, 2000)
Conference report
Open AccessThis paper considers the problem of estimating the time delays of multiple replicas of a known signal received by an array of antennas. Under the assumptions that the noise and co-channel interference (CCI) are spatially ... -
Adaptive beamforming with temporal and spatial references in satellite communications
(1990)
Conference report
Open Access -
Algorithms and structures for source separation based on the constant modulus property
(1996)
Conference report
Open AccessWe propose two structures and theirs associated algorithms designed to solve the blind source separation problem in the presence of noise and interferences. Both structures exploit the non convexity of the Constant Modulus ... -
Aplicación de un perceptrón multicapa a la estimación de angulos de llegada de fuentes de banda estrecha
(1990)
Conference report
Open Access -
Assessment of RSS model calibration with real WLAN devices
(2015)
Conference report
Restricted access - publisher's policyReceived Signal Strength (RSS) for indoor localization is widely used due to its simplicity and availability in most mobile devices. The RSS channel model is defined by the propagation losses and the shadow fading. This ... -
Bayesian filtering for nonlinear state-space models in symmetric alpha-stable measurment noise
(2011)
Conference report
Open AccessBayesian ltering appears in many signal processing problems,reason why it attracted the attention of many researchers to develop efficient algorithms, yet computationally a ordable. In many real systems, it is appropriate ... -
Beamforming and Multiuser Detection in CDMA Systems with External Interferences
(ICASSP'99, 1999)
Conference report
Open AccessMultiuser detection has been investigated to mitigate the near-far effect in CDMA systems. Antenna arrays have been shown to provide spatial diversity and cancel undesired signals. In this paper we consider the synergy of ... -
Blind multi-user combining at the base station for asynchronous CDMA systems
(Institute of Electrical and Electronics Engineers (IEEE), 1996)
Conference report
Open AccessThis paper studies the potential benefits of antenna arrays in cellular CDMA communications and proposes a powerful scheme to undertake the array processing at the base station in CDMA mobile systems. The proposed technique ... -
Blind multiuser adaptive combining for asynchronous cdma systems
(1996)
Conference report
Open AccessThis paper presents a novel technique to globally estimate and track the direction of arrival (DOA) of different users in an asynchronous CDMA system. The estimates are obtained exploiting the temporal structure of CDMA ... -
Cancellation of external and multiple access interference in cdma systems using antenna arrays
(1997-09)
Article
Restricted access - publisher's policyThis paper deals with the problem of multisensor-multiuser detection in CDMA systems in the presence of interferences external to the system. The paper presents a new method able to estimate the spatial signature of all ... -
Cancellation of external and multiple access interference in cdma systems using antenna arrays
(D. DOCAMPO, A. R. FIGUEIRAS, F. PÉREZ, 1996)
Conference report
Restricted access - publisher's policyThis paper deals with the problem of multisensor-multiuser detection in CDMA systems in the presence of interferences external to the system. The paper presents a new method able to estimate the spatial signature of all ... -
Code-timing synchronization in DS-CDMA systems using space-time diversity
(Servicio de Publicaciones Universidad de Vigo, 1999)
Conference report
Open AccessThe synchronization of a desired user transmitting a known training sequence in a direct-sequence (DS) asynchronous code-division multiple-access (CDMA) sys-tem is addressed. It is assumed that the receiver consists of an ... -
Collective unambiguous positioning with high-order BOC signals
(2018-01-01)
Article
Open AccessThe unambiguous estimation of high-order BOC signals in harsh propagation conditions is still an open problem in the literature. This paper proposes to overcome the limitations observed in state-of-the-art unambiguous ... -
COMalaWEB: plataforma basada en noves tecnologies aplicades a la docència
(2005-02)
Conference report
Open AccessLes possibilitats que ens ofereixen les noves tecnologies de la informació aplicades a l’àmbit de la docència és un tema encara no prou ben explotat. Aquest projecte pretén investigar aquests conceptes mitjançant la creació ... -
Comunicaciones analógicas
(Edicions UPC, 1999)
Book
Restricted access to the UPC academic communityEl objetivo de este libro es proporcionar al estudiante una introducción a los principios básicos de los Sistemas de Comunicaciónes Analógicos. Los cinco últinos capítulos del libro se adaptan perfectamente a la asignatura ... -
Comunicaciones II : ejercicios resueltos
(Edicions UPC, 2005)
Book
Restricted access to the UPC academic communityEste material constituye una recopilación de problemas de examen, resueltos por los profesores de la asignatura Comunicaciones 2, impartida en el segundo curso de los estudios de Ingeniería Técnica Superior de Telecomunicaciones ...
