Browsing by Author "Lagunas Hernandez, Miguel A."
Now showing items 1-20 of 185
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A dynamic non-singleton fuzzy logic system for DS/CDMA communications
(Institute of Electrical and Electronics Engineers (IEEE), 1998)
Conference report
Open AccessWe investigate a dynamic fuzzy logic system, specifically, its non-singleton generalization, and derive a novel adaptive fuzzy line enhancer that successfully solves the non-linear problem of narrowband interference (NBI) ... -
A fuzzy logic filter for coherent detection in mobile communication receivers
(1998)
Conference report
Open AccessThis paper proposes and demonstrates the use of a fuzzy logic filter for carrier phase synchronization in digital mobile communication receivers. The use of a priori knowledge of the dynamics of the phase in mobile fading ... -
A general adaptive algorithm for nonGaussian source separation without any constraint
(1994)
Conference report
Open AccessThis paper deals with the blind source separation. The task consists in separating some independent and linearly mixed signals called sources. After some general remarks, the model is recalled and our approach based on the ... -
A linear transform for spectral estimation
(1981-10)
Article
Open Access -
A maximum approach for robust MIMO design: combining OSTBC and beamforming with minimum transmission power requirements
(2004)
Conference report
Open AccessIn this paper we address the problem of the design of a transmitter in a Multi-Input-Multi-Output (MIMO) space diversity system. We consider a design which is robust to errors in the channel estimate available at the ... -
A new non-linear system for estimating and suppressing narrowband interference in PN spread spectrum modulation
(1998)
Conference report
Open AccessThis work develops a novel dynamic fuzzy logic system that, based on a fuzzy basis function expansion, successfully solves the non-linear problem of narrowband interference prediction and rejection in DS-SS. A fuzzy basis ... -
A novel approach to MISO interference networks under maximum receive-power regulation
(WSEAS Press, 2018-07-01)
Article
Open AccessAn aggressive frequency reuse is expected within the next years in order to increase the spectral ef¿ciency. Multiuser interference by all in-band transmitters can create a communication bottleneck and, therefore, it is ... -
A novel architecture to model non-linear systems
(1994)
Conference report
Open AccessThis paper shows a new architecture specially thought to model non-linear systems (NLSs). At first, it was applied only to memoryless systems but then it developed to solve a more general problem, NLSs with memory. The ... -
A recursive SVD algorithm for array signal processing
(Elsevier, 1990)
Conference report
Open Access -
A robust maximin approach for MIMO communications with imperfect channel state information based on convex optimization
(2006-01)
Article
Open AccessThis paper considers a wireless communication system with multiple transmit and receive antennas, i.e., a multiple-input-multiple-output (MIMO) channel. The objective is to design the transmitter according to an imperfect ... -
A signal subspace framewok of nonlinearly constrained solutions
(Elsevier, 1990)
Conference report
Open Access -
A technique for OFDM symbol slicing
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessThis work presents an orthonormal transform that splits the Orthogonal Frequency Division Multiplex (OFDM) symbol into slices with ranked rate and decoding complexity. The advantage over the existing carrier or time ... -
A unifying approach to transmit beamforming for the MISO interference channel
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Conference report
Restricted access - publisher's policyThis paper addresses the problem of optimal beam- forming in the MISO interference channel. Different approaches are known to obtain the Pareto rate region. In this paper, several frameworks are thoroughly analyzed and ... -
A weighted min-norm method with a recursive implementation
(1990)
Conference report
Open Access -
Adaptive array beamforming for frequency hopping modulation
(1996)
Conference report
Open AccessA new architecture for Array Processing using Frequency Hopping (FH) modulation is addressed in this paper which takes advantage of the knowledge of the frequency sequence at the receiver, requiring neither temporal nor ... -
Additional constraints in variational procedures for ARMA Spectral Estimation
(1986)
Conference report
Open AccessA new variational ARMA power spectral estimation procedure is proposed. The resulting is a generalization of the ARMA estimation method proposed by Lagunas et al. [1] which used correlation and cepstral constraints. The ... -
Algoritmo para la estimación óptima de la fase instantánea
(1980)
Conference report
Open AccessA new approach in the problem of phase detectors is presented. The procedure is started from the optimum design of digital phase locked loop (DPLL) and some fundamental aspects as the state equations for the communication ... -
An adaptative fuzzy logic enhancer for rejection of narrowband interference in DS-Spread Spectrum
(1998)
Conference report
Open AccessThis 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 ... -
An adaptive design of an all-zero spectral estimator
(Institute of Electrical and Electronics Engineers (IEEE), 1981)
Conference report
Open Access -
An adaptive spectral estimator based on the predictive innovation process and Kalman filtering
(1980)
Conference report
Open Access
