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Eleftherios Kofidis

4 accepted papers

2024

Adaptive Joint Channel Estimation/Data Detection in Flexible Multicarrier Mimo Systems - A Tensor-Based Approach

ICASSP 2024accepted

Multiple-input multiple-output (MIMO) systems employing multicarrier modulation (MCM), including flexible MCM that unifies several MCM schemes, have been well studied recently also in their tensor-based formulation. The latter naturally allows for (semi-)blind joint channel estimation/data detection…

Cited by 0SourceScholar
2021

Rank-Revealing Block-Term Decomposition for Tensor Completion

ICASSP 2021accepted

The so-called block-term decomposition (BTD) tensor model has been recently receiving increasing attention due to its enhanced ability of representing systems and signals that are composed of blocks of rank higher than one, a scenario encountered in numerous and diverse applications. In this paper,…

Cited by 0SourceScholar
2017

Assisted dictionary learning for FMRI data analysis

ICASSP 2017accepted

Extracting information from functional magnetic resonance images (fMRI) has been a major area of research for more than two decades. The goal of this work is to present a new method for the analysis of fMRI data sets, that is capable to incorporate a priori available information, via an efficient op…

Cited by 0SourceScholar
2016

Pilot-based channel estimation for FBMC/OQAM systems under strong frequency selectivity

ICASSP 2016accepted

Scattered pilot-aided channel estimation in offset QAM-based filter bank multicarrier (FBMC/OQAM) systems has so far been only considered for channels of mild frequency selectivity. In more demanding scenarios, the classical auxiliary pilot (AP) idea has been shown to result in severe error floors.…

Cited by 0SourceScholar