Eleftherios Kofidis

Publication Activity (10 Years)

Years Active: 1996-2024
Publications (10 Years): 39

Top Topics

Channel Estimation

Source Separation

Tensor Decomposition

Top Venues

IEEE Trans. Signal Process.

Publications

Eleftherios Kofidis
Adaptive Joint Channel Estimation/Data Detection in Flexible Multicarrier Mimo Systems - A Tensor-Based Approach. ICASSP (2024)
Xiangtao Zhang, Eleftherios Kofidis, Ce Zhu, Le Zhang, Yipeng Liu
Federated Learning Using Coupled Tensor Train Decomposition. CoRR (2024)
Eleftherios Kofidis
On the tensor-based approach to adaptive joint channel estimation/data detection in flexible multicarrier MIMO systems. Digit. Signal Process. 154 (2024)
Athanasios A. Rontogiannis, Eleftherios Kofidis, Paris V. Giampouras
Online rank-revealing block-term tensor decomposition. Signal Process. 212 (2023)
Eleftherios Kofidis, Paris V. Giampouras, Athanasios A. Rontogiannis
A Projected Newton-type Algorithm for Rank - revealing Nonnegative Block - Term Tensor Decomposition. EUSIPCO (2022)
Mokhtar Besseghier, Ahmed Bouzidi Djebbar, Eleftherios Kofidis
Joint CFO and highly frequency selective channel estimation in FBMC/OQAM systems. Digit. Signal Process. 128 (2022)
Jide Yuan, George C. Alexandropoulos, Eleftherios Kofidis, Tobias Lindstrøm Jensen, Elisabeth de Carvalho
Channel Tracking for RIS-Enabled Multi-User SIMO Systems in Time-Varying Wireless Channels. ICC Workshops (2022)
Paris V. Giampouras, Athanasios A. Rontogiannis, Eleftherios Kofidis
Block-Term Tensor Decomposition Model Selection and Computation: The Bayesian Way. IEEE Trans. Signal Process. 70 (2022)
Jide Yuan, George C. Alexandropoulos, Eleftherios Kofidis, Tobias Lindstrm Jensen, Elisabeth de Carvalho
Tensor-based Channel Tracking for RIS-Empowered Multi-User MIMO Wireless Systems. CoRR (2022)
Paris V. Giampouras, Athanasios A. Rontogiannis, Eleftherios Kofidis
A Bayesian Approach to Block-Term Tensor Decomposition Model Selection and Computation. CoRR (2021)
Paris V. Giampouras, Athanasios A. Rontogiannis, Eleftherios Kofidis
A Bayesian Approach to Block-Term Tensor Decomposition Model Selection and Computation. EUSIPCO (2021)
Athanasios A. Rontogiannis, Eleftherios Kofidis, Paris V. Giampouras
Online Rank-Revealing Block-Term Tensor Decomposition. CoRR (2021)
Athanasios A. Rontogiannis, Eleftherios Kofidis, Paris V. Giampouras
Block-Term Tensor Decomposition: Model Selection and Computation. IEEE J. Sel. Top. Signal Process. 15 (3) (2021)
Athanasios A. Rontogiannis, Eleftherios Kofidis, Paris V. Giampouras
Online Rank-Revealing Block-Term Tensor Decomposition. ACSCC (2021)
Eleftherios Kofidis
On Preamble-based FBMC/OQAM Highly Frequency Selective Channel Estimation Without Guard Symbols. GLOBECOM (2021)
Athanasios A. Rontogiannis, Paris V. Giampouras, Eleftherios Kofidis
Rank-Revealing Block-Term Decomposition for Tensor Completion. ICASSP (2021)
Christos Chatzichristos, Eleftherios Kofidis, Lieven De Lathauwer, Sergios Theodoridis, Sabine Van Huffel
Early soft and flexible fusion of EEG and fMRI via tensor decompositions. CoRR (2020)
Athanasios A. Rontogiannis, Eleftherios Kofidis, Paris V. Giampouras
Block-Term Tensor Decomposition: Model Selection and Computation. CoRR (2020)
Eleftherios Kofidis
A Tensor-Based Approach to Joint Channel Estimation/Data Detection in Flexible Multicarrier MIMO Systems. IEEE Trans. Signal Process. 68 (2020)
Athanasios A. Rontogiannis, Eleftherios Kofidis, Paris V. Giampouras
Block-Term Tensor Decomposition: Model Selection and Computation. EUSIPCO (2020)
Vassilis Dalakas, Eleftherios Kofidis
Filter bank-based multiple access in next-generation satellite uplinks: A DVB-RCS2-based experimental study. Int. J. Satell. Commun. Netw. 38 (4) (2020)
Christos Chatzichristos, Michiel Vandecappelle, Eleftherios Kofidis, Sergios Theodoridis, Lieven De Lathauwer, Sabine Van Huffel
Tensor-based Blind fMRI Source Separation Without the Gaussian Noise Assumption - A β-Divergence Approach. GlobalSIP (2019)
Eleftherios Kofidis, Vassilis Dalakas
Filter Bank-based Multiple Access in Next Generation Satellite Uplinks: A DVB-RCS2-based Experimental Study. 5G World Forum (2019)
Christos Chatzichristos, Mike Davies, Javier Escudero, Eleftherios Kofidis, Sergios Theodoridis
Fusion of EEG and fMRI via Soft Coupled Tensor Decompositions. EUSIPCO (2018)
Christos Chatzichristos, Eleftherios Kofidis, Sergios Theodoridis
PARAFAC2 and its block term decomposition analog for blind fMRI source unmixing. EUSIPCO (2017)
Manuel Morante Moreno, Yannis Kopsinis, Eleftherios Kofidis, Christos Chatzichristos, Sergios Theodoridis
Assisted dictionary learning for FMRI data analysis. ICASSP (2017)
Eleftherios Kofidis, Christos Chatzichristos, André Lima Férrer de Almeida
Joint channel estimation / data detection in MIMO-FBMC/OQAM systems - A tensor-based approach. EUSIPCO (2017)
Christos Chatzichristos, Eleftherios Kofidis, Yiannis Kopsinis, Manuel Morante Moreno, Sergios Theodoridis
Higher-Order Block Term Decomposition for Spatially Folded fMRI Data. LVA/ICA (2017)
Lieven De Lathauwer, Eleftherios Kofidis
Coupled matrix-tensor factorizations - The case of partially shared factors. ACSSC (2017)
Eleftherios Kofidis
Preamble-Based Estimation of Highly Frequency Selective Channels in FBMC/OQAM Systems. IEEE Trans. Signal Process. 65 (7) (2017)
Christos Chatzichristos, Eleftherios Kofidis, Giannis Kopsinis, Sergios Theodoridis
Higher-Order Block Term Decomposition for Spatially Folded fMRI Data. CoRR (2016)
Eleftherios Kofidis, Christos Chatzichristos, André L. F. de Almeida
Joint Channel Estimation / Data Detection in MIMO-FBMC/OQAM Systems - A Tensor-Based Approach. CoRR (2016)
François Rottenberg, François Horlin, Eleftherios Kofidis, Jérôme Louveaux
Generalized optimal pilot allocation for channel estimation in multicarrier systems. SPAWC (2016)
Ana I. Pérez-Neira, Marius Caus, Rostom Zakaria, Didier Le Ruyet, Eleftherios Kofidis, Martin Haardt, Xavier Mestre, Yao Cheng
MIMO Signal Processing in Offset-QAM Based Filter Bank Multicarrier Systems. IEEE Trans. Signal Process. 64 (21) (2016)
Eleftherios Kofidis
Blind Source Separation: Fundamentals and Recent Advances (A Tutorial Overview Presented at SBrT-2001). CoRR (2016)
Xavier Mestre, Eleftherios Kofidis
Pilot-based channel estimation for FBMC/OQAM systems under strong frequency selectivity. ICASSP (2016)
Konstantinos N. Maliatsos, Eleftherios Kofidis, Athanasios G. Kanatas
A Unified Multicarrier Modulation Framework. CoRR (2016)
Eleftherios Kofidis
On optimal multi-symbol preambles for highly frequency selective FBMC/OQAM channel estimation. ISWCS (2015)
François Rottenberg, Yahia Medjahdi, Eleftherios Kofidis, Jérôme Louveaux
Preamble-based channel estimation in asynchronous FBMC-OQAM distributed MIMO systems. ISWCS (2015)
Eleftherios Kofidis
Short preamble-based estimation of highly frequency selective channels in FBMC/OQAM. ICASSP (2014)
Eleftherios Kofidis
Channel estimation in filter bank-based multicarrier systems: Challenges and solutions. ISCCSP (2014)
Christos Mavrokefalidis, Eleftherios Kofidis, Athanasios A. Rontogiannis, Sergios Theodoridis
Preamble-based channel estimation in single-relay networks using FBMC/OQAM. EURASIP J. Adv. Signal Process. 2014 (2014)
Christos Mavrokefalidis, Athanasios A. Rontogiannis, Eleftherios Kofidis, A. Beikos, Sergios Theodoridis
Efficient adaptive equalization of doubly dispersive channels in MIMO-FBMC/OQAM systems. ISWCS (2014)
Eleftherios Kofidis, Dimitrios Katselis, Athanasios A. Rontogiannis, Sergios Theodoridis
Preamble-based Channel Estimation in OFDM/OQAM Systems: A Review CoRR (2013)
Christos Mavrokefalidis, Eleftherios Kofidis, Athanasios A. Rontogiannis, Sergios Theodoridis
Optimal training design for channel estimation in OFDM/OQAM cooperative systems. SPAWC (2013)
Eleftherios Kofidis, Dimitrios Katselis, Athanasios A. Rontogiannis, Sergios Theodoridis
Preamble-based channel estimation in OFDM/OQAM systems: A review. Signal Process. 93 (7) (2013)
Eleftherios Kofidis
Preamble-based Channel Estimation in OFDM/OQAM Systems: A Time-Domain Approach. CoRR (2013)
Christos Mavrokefalidis, Eleftherios Kofidis, Athanasios A. Rontogiannis, Sergios Theodoridis
Preamble Design for Channel Estimation in OFDM/OQAM Cooperative Systems. ISWCS (2013)
Constantinos Rizogiannis, Eleftherios Kofidis, Athanasios A. Rontogiannis, Sergios Theodoridis
Adaptive BLAST-type decision-feedback equalizers for DS-CDMA systems. Signal Process. 92 (4) (2012)
Dimitrios Katselis, Eleftherios Kofidis, Sergios Theodoridis
On OFDM/OQAM receivers. EUSIPCO (2012)
Eleftherios Kofidis, Dimitrios Katselis
Improved interference approximation method for preamble-based channel estimation in FBMC/OQAM. EUSIPCO (2011)
Dimitrios Katselis, Mats Bengtsson, Cristian R. Rojas, Håkan Hjalmarsson, Eleftherios Kofidis
On preamble-based channel estimation in OFDM/OQAM systems. EUSIPCO (2011)
Eleftherios Kofidis, Dimitrios Katselis
Preamble-based channel estimation in MIMO-OFDM/OQAM systems. ICSIPA (2011)
Eleftherios Kofidis, Athanasios A. Rontogiannis
Adaptive BLAST decision-feedback equalizer for MIMO-FBMC/OQAM systems. PIMRC (2010)
Constantinos Rizogiannis, Eleftherios Kofidis, Constantinos B. Papadias, Sergios Theodoridis
Semi-blind maximum-likelihood joint channel/data estimation for correlated channels in multiuser MIMO networks. Signal Process. 90 (4) (2010)
Dimitrios Katselis, Eleftherios Kofidis, Athanasios A. Rontogiannis, Sergios Theodoridis
Preamble-based channel estimation for CP-OFDM and OFDM/OQAM systems: a comparative study. IEEE Trans. Signal Process. 58 (5) (2010)
Dimitrios Katselis, Eleftherios Kofidis, Athanasios A. Rontogiannis, Sergios Theodoridis
Preamble-Based Channel Estimation for CP-OFDM and OFDM/OQAM Systems: A Comparative Study CoRR (2009)
Dimitrios Katselis, Eleftherios Kofidis, Sergios Theodoridis
On Training Optimization for Estimation of Correlated MIMO Channels in the Presence of Multiuser Interference. IEEE Trans. Signal Process. 56 (10-1) (2008)
Dimitrios Katselis, Eleftherios Kofidis, Sergios Theodoridis
Training-based estimation of correlated MIMO fading channels in the presence of colored interference. Signal Process. 87 (9) (2007)
Dimitrios Katselis, Eleftherios Kofidis, Sergios Theodoridis
Training-Based Estimation of Correlated MIMO Fading Channels in the Presence of Colored Interference. ISCAS (2007)
Eleftherios Kofidis, Vassilis Dalakas, Yannis Kopsinis, Sergios Theodoridis
A Novel Efficient Cluster-Based MLSE Equalizer for Satellite Communication Channels with M-QAM Signaling. EURASIP J. Adv. Signal Process. 2006 (2006)
Yannis Kopsinis, Sergios Theodoridis, Eleftherios Kofidis
An efficient low complexity cluster-based MLSE equalizer for frequency-selective fading channels. IEEE Trans. Wirel. Commun. 5 (4) (2006)
Eleftherios Kofidis, Yannis Kopsinis, Sergios Theodoridis
On the least-squares performance of a novel efficient center estimation method for clustering-based MLSE equalization. IEEE Trans. Signal Process. 54 (4) (2006)
Eleftherios Kofidis
Designing N-band biorthogonal FIR systems given several of the analysis and synthesis filters. Signal Process. 85 (7) (2005)
Eleftherios Kofidis, Yannis Kopsinis, Sergios Theodoridis
On the least squares performance of a novel efficient center estimation method for clustering-based MLSE equalization. EUSIPCO (2004)
Yannis Kopsinis, Sergios Theodoridis, Eleftherios Kofidis
An efficient low complexity clustering-based MLSE equalizer for frequency-selective fading channels. EUSIPCO (2004)
Phillip A. Regalia, Eleftherios Kofidis
Monotonic convergence of fixed-point algorithms for ICA. IEEE Trans. Neural Networks 14 (4) (2003)
Eleftherios Kofidis, Phillip A. Regalia
On the Best Rank-1 Approximation of Higher-Order Supersymmetric Tensors. SIAM J. Matrix Anal. Appl. 23 (3) (2002)
Phillip A. Regalia, Eleftherios Kofidis
A "unimodal" blind equalization criterion. EUSIPCO (2000)
Phillip A. Regalia, Eleftherios Kofidis
The higher-order power method revisited: convergence proofs and effective initialization. ICASSP (2000)
Eleftherios Kofidis, Phillip A. Regalia
Design of biorthogonal multi-band FIR filter banks given several of the analysis and synthesis filters. EUSIPCO (2000)
Eleftherios Kofidis, Nicholas Kolokotronis, Aliki Vassilarakou, Sergios Theodoridis, Dionisis A. Cavouras
Wavelet-based medical image compression. Future Gener. Comput. Syst. 15 (2) (1999)
Eleftherios Kofidis, Sergios Theodoridis, Nicholas Kalouptsidis
Mirror-image symmetric perfect-reconstruction FIR filter banks: Parametrization and design. Signal Process. 68 (1) (1998)
Eleftherios Kofidis, Sergios Theodoridis, Nicholas Kalouptsidis
On the perfect reconstruction problem in N-band multirate maximally decimated FIR filter banks. IEEE Trans. Signal Process. 44 (10) (1996)
Eleftherios Kofidis, Sergios Theodoridis, Constantine Kotropoulos, Ioannis Pitas
Nonlinear adaptive filters for speckle suppression in ultrasonic images. Signal Process. 52 (3) (1996)
Eleftherios Kofidis, Sergios Theodoridis, Nicholas Kalouptsidis
Perfect-reconstruction FIR filter banks with mirror-image symmetry. ICECS (1996)
Eleftherios Kofidis, Sergios Theodoridis, Nicholas Kalouptsidis
On perfect-reconstruction FIR filter banks. EUSIPCO (1996)