Browsing by Author "Sala Álvarez, José"
Now showing items 1-20 of 108
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A cost function for the equalization of constant amplitude signals based on statistical reference
(1996)
Conference report
Open AccessThe equalization of constant amplitude signals is considered in the scope of this paper. A criterion based on the probability density function (pdf) of the signal of interest is proposed. The objective is to derive a ... -
A distributed arithmetics architecture for quantization SNR improvement based on LUT recoding
(Servicio de Publicaciones Universidad de Vigo, 1999)
Conference report
Open Access -
A fast OFDM-CDMA user demultiplexing architecture
(Institute of Electrical and Electronics Engineers (IEEE), 2000)
Conference report
Open AccessA fast algorithm based on a butterfly structure is presented that demultiplexes the symbols of a particular type of MC-MA (multi-carrier multiple-access) modulation previously proposed for indoor radio communications. A ... -
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 statistical reference criterion for adaptive filtering
(Institute of Electrical and Electronics Engineers (IEEE), 1996)
Conference report
Open AccessA cost function for adaptive filtering is proposed, based on the statistical reference criterion. The purpose of this criterion is to enforce a given probability density function at the output of a system. The only ... -
A statistical reference criterion for adaptive filtering
(Institute of Electrical and Electronics Engineers (IEEE), 1996)
Conference report
Open AccessA cost function for adaptive filtering is proposed, based on the statistical reference criterion. The purpose of this criterion is to enforce a given probability density function at the output of a system. The only ... -
Adaptive blind equalization and demodulation without channel and signal parameter extraction
(1994)
Conference report
Open AccessThe problem of filtering a source of known statistics in noise and/or interference of unknown statistics is addressed in this paper. In a general framework, the optimum estimation (detection) of the desired signal requires ... -
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. -
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 -
APLICACIONS A LA CREACIO DE CONTINGUTS MULTIMEDIA (Examen 1r Quadr.)
(Universitat Politècnica de Catalunya, 2006-01-12)
Exam
Restricted access to the UPC academic community -
Apunts de comunicacions analògiques i digitals
(Universitat Politècnica de Catalunya, 2010)
Lecture notes
Open Access -
Asymptotic and finite user PER analysis of successive interference cancellation in DS-CDMA
(2011-11)
Article
Open AccessAn expression is derived for the average Packet Error Rate (PER) of a Successive Interference Canceller (SIC) for DS-CDMA when the number of users asymptotically tends to infinity. The asymptotic probability density function ... -
Asymptotic performance analysis of successive interference cancellation with dynamic user-decoding order
(2020-09-01)
Article
Open AccessWe address the evaluation of dynamic (estimation-based) user-decoding order in successive interference cancellation (SIC) in a proof-of-concept multiple access satellite setting in which many code-division multiple access ... -
Asymptotically optimum energy profile for successive interference cancellation in DS-CDMA under a power unbalance constraint
(2012-02)
Article
Open AccessA new Ordinary Differential Equation (ODE) governing the SNIR evolution of a Successive Interference Canceller (SIC) for DS-CDMA is derived when the number of users tends to infinity and all users share the same channel ...
