Browsing by Author "Riba Sagarra, Jaume"
Now showing items 1-20 of 80
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A non-data-aided SNR estimation technique for multilevel modulations exploiting signal cyclostationarity
(2010-11-01)
Article
Restricted access - publisher's policySignal-to-noise ratio (SNR) estimators of linear modulation schemes usually operate at one sample per symbol at the matched filter output. In this paper we propose a new method for estimating the SNR in the complex ... -
A nondata-aided SNR estimation technique for multilevel modulations exploiting signal cyclostationarity
(2010-11-01)
Article
Open AccessSignal-to-noise ratio (SNR) estimators of linear modulation schemes usually operate at one sample per symbol at the matched filter output. In this paper we propose a new method for estimating the SNR in the complex additive ... -
A novel formulation of independence detection based on the sample characteristic function
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference lecture
Open AccessA novel independence test for continuous random sequences is proposed in this paper. The test is based on seeking for coherence in a particular fixed-dimension feature space based on a uniform sampling of the sample ... -
A performance lower bound for quadratic timing recovery accounting for the symbol transition density
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2004-11-30)
Article
Open AccessThe symbol transition density in a digitally modulated signal affects the performance of practical synchronization schemes designed for timing recovery. This paper focuses on the derivation of simple performance limits for ... -
A proof of de Bruijn identity based on generalized Price’s theorem
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Conference lecture
Open AccessThis paper shows that de Bruijn identity, which relates entropy with Fisher information, can be obtained as a particular case of an immediate generalization of Price’s theorem, which is a tool used in the analysis of ... -
A rain and scintillation Ka-band channel simulator
(ESA, 2008)
Conference report
Open AccessThis paper describes the implementation of a Ka-band satellite channel simulator with emphasis on the synthesis of scintillation processes. The problem becomes one of generating a given probability density function, ... -
A test for conditional correlation between random vectors based on weighted u-statistics
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Conference lecture
Open AccessThis article explores U-Statistics as a tool for testing conditional correlation between two multivariate sources with respect to a potential confounder. The proposed approach is effectively an instance of weighted ... -
ADC Quantization Requirements
(2000-06)
Research report
Open AccessIn this document, we analyze the impact of the quantization at the input of the demultiplexer. The required number of bits of the Analog-to-Digital-Converter (ADC) is obtained, along with the corresponding quantization losses. -
Affine projection subspace tracking
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference lecture
Open AccessIn this paper, we consider the problem of estimating and tracking an R-dimensional subspace with relevant information embedded in an N-dimensional ambient space, given that N>>R. We focus on a formulation of the signal ... -
ANTARES Project (Bridging Phase). Payload carrier synchronization : algorithms and simulations
(2011-11-23)
Research report
Restricted access - confidentiality agreementInforme final Bridging Phase. Versió 3.2 -
ANTARES Project (Phase B). Multiple acces scheme definition. Diverse trade-offs analysis for TDMA and CDMA
(2010-03-01)
Research report
Restricted access - confidentiality agreement -
ANTARES Project (Phase B). Multiple acces scheme definition. Spectral efficiency analysis of the MAC techniques considered for the Antares forward and return links
(2010-07-01)
Research report
Restricted access - confidentiality agreement -
ANTARES Project (Phase B). Multiple acces scheme definition. Successive interference cancellation for A-CDMA
(2010-05-01)
Research report
Restricted access - confidentiality agreement -
ANTARES Project (Phase B). Multiple access scheme definition. Impact of the aeronautical channel on the MAC techniques considered for the Antares forward and return links
(2010-03-01)
Research report
Restricted access - confidentiality agreement -
ANTARES Project (Phase B). Physical layer definition. Equalization detailed design
(2010-08-01)
Research report
Restricted access - confidentiality agreement -
ANTARES Project (Phase B). Physical layer definition. Payload carrier synchronization for the Antares TDMA return link
(2010-08-01)
Research report
Restricted access - confidentiality agreement -
Asymptotic analysis of near-field coupling in massive MISO and massive SIMO systems
(2024-08)
Article
Open AccessThis paper studies the receiver to transmitter antenna coupling in near-field communications with massive arrays. Although most works in the literature consider that it is negligible and approximate it by zero, there is ... -
Asymptotic error exponents in energy-detector and estimator-correlator signal detection
(IEEE Computational Intelligence Society, 2012)
Conference report
Restricted access - publisher's policyThe performance in signal detection is evaluated by the error (false-alarm and missed-detection) probabilities. However, calculating these probabilities is a difficult task in practice. This paper studies the asymptotic ... -
Average performance analysis of circular and hyperbolic geolocation
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-01-31)
Article
Open AccessA comparative performance analysis of four geolocation methods in terms of their theoretical root mean square positioning errors is provided. Comparison is established in two different ways: strict and average. In the ... -
Compressed correlation-matching for spectrum sensing in sparse wideband regimes
(IEEE Press. Institute of Electrical and Electronics Engineers, 2011)
Conference lecture
Restricted access - publisher's policyIn this paper, we consider a novel compressed correlation-matching (CCM) approach for spectrum sensing of wideband sparse signals. We derive a general closed-form estimate of the wideband sparse signal level from compressed ...
