Publications
Books / Book chapters
[B3] S. Theodoridis, K. Berberidis, and E. Kofidis, Introduction to Signal and System Theory, Typotheto, 2nd ed., 2003 (in Greek).
[B2] E. Kofidis and P. A. Regalia, “Tensor approximation and signal processing applications,” in Structured Matrices in Mathematics, Computer Science, and Engineering I, V. Olshevsky (Ed.), Contemporary Mathematics Series, American Mathematical Society, 2001.
[B1] E. Kofidis, N. Kolokotronis, A. Vassilarakou, S. Theodoridis, and D. Cavouras, “Medical image compression,” pp. 369–406 in Advanced Infrastructures for Future Healthcare, A. Marsh et al. (Eds.), IOS Press, 2000.
Journal papers [J17] C. Mavrokefalidis, E. Kofidis, A. Rontogiannis, and S. Theodoridis, “Preamble-based channel estimation in single-relay networks using FBMC/OQAM,” EURASIP J. Advances in Signal Process., 2014:66, May 2014. [J16] E. Kofidis, D. Katselis, A. A. Rontogiannis, and S. Theodoridis, “Preamble-based channel estimation in OFDM/OQAM systems: A review,” Signal Process., vol. 93, no. 7, pp. 2038-2054, July 2013. [J15] C. Rizogiannis, E. Kofidis, A. A. Rontogiannis, and S. Theodoridis, “Adaptive BLAST-type decision-feedback equalizers for DS-CDMA systems,” Signal Process., vol. 92, pp. 977-988, 2012. [J14] D. Katselis, E. Kofidis, A. A. Rontogiannis, and S. Theodoridis, “Preamble-based channel estimation for CP-OFDM and OFDM/OQAM systems: A comparative study,” IEEE Trans. Signal Process., vol. 58, no. 5, pp. 2911-2916, May 2010. [J13] C. Rizogiannis, E. Kofidis, C. B. Papadias, and S. Theodoridis, “Semi-blind maximum-likelihood joint channel/data estimation for correlated channels in multiuser MIMO networks,” Signal Process., vol. 90, no. 4, pp. 1209-1224, April 2010. [J12] D. Katselis, E. Kofidis, and S. Theodoridis, “On training optimization for estimation of correlated MIMO channels in the presence of multiuser interference,” IEEE Trans. Signal Process., vol.56,no.10, pp. 4892-4904, Oct. 2008. [J11] D. Katselis, E. Kofidis, and S. Theodoridis, “Training-based estimation of correlated MIMO fading channels in the presence of colored interference,” Signal Process., vol. 87, no. 9, pp. 2177-2187, Sept. 2007. [J10] E. Kofidis, Y. Kopsinis, and S. Theodoridis, “On the least-squares performance of a novel efficient center estimation method for clustering-based MLSE equalization,” IEEE Trans. Signal Process., vol. 54, no. 4, pp. 1459-1471, April 2006. [J9] Y. Kopsinis, S. Theodoridis, and E. Kofidis, “An efficient low complexity cluster-based MLSE equalizer for frequency-selective fading channels,” IEEE Trans. Wireless Commun., vol. 5, no. 4, pp. 705-711, April 2006. [J8] E. Kofidis, V. Dalakas, Y. Kopsinis, and S. Theodoridis, “A novel efficient cluster-based MLSE equalizer for satellite channels with M-QAM signaling,” EURASIP J. Applied Signal Process., vol. 2006, Article ID 34343, 2006. [J7] E. Kofidis, “Designing Ν-band biorthogonal FIR systems given several of the analysis and synthesis filters,” Signal Process., vol. 85, pp. 1335-1331, July 2005. [J6] P. A. Regalia and E. Kofidis, “Monotonic convergence of fixed-point algorithms for ICA,” IEEE Trans. Neural Networks, vol. 14, no. 4, pp. 943–949, July 2003. [J5] E. Kofidis and P. A. Regalia, “On the best rank-1 approximation of higher-order super-symmetric tensors,” SIAM J. Matrix Analysis and Applications, vol. 23, no. 3, pp. 863–884, 2002. [J4] E. Kofidis, N. Kolokotronis, A. Vassilarakou, S. Theodoridis, and D. Cavouras, “Wavelet-based medical image compression,” Future Generation Computer Systems, vol. 15, no. 2, pp. 223–243, 1999. [J3] E. Kofidis, S. Theodoridis, and N. Kalouptsidis, “Mirror-image symmetric perfect reconstruction FIR filter banks: Parametrization and design,” Signal Process., vol. 68, no. 1, pp. 1–21, 1998. [J2] E. Kofidis, S. Theodoridis, C. Kotropoulos and I. Pitas, “Nonlinear adaptive filters for speckle suppression in ultrasonic images,” Signal Process., vol. 52, no. 3, pp. 357–372, 1996. [J1] E. Kofidis, S. Theodoridis, and N. Kalouptsidis, “On the perfect-reconstruction problem in N-band maximally-decimated multirate FIR filter banks,” IEEE Trans. Signal Process., vol. 44, no. 10, pp. 2439–2455, Oct. 1996. Conference papers [C24] E. Kofidis, “Channel estimation in filter bank-based multicarrier systems: Challenges and solutions,” 6th IEEE Int’l Symp. Communications, Control, and Signal Processing (ISCCSP-2014), Special session on “Signal processing techniques for future mobile networks,” Athens, Greece, May 2014. [C23] E. Kofidis, “Short preamble-based estimation of highly frequency selective channels in FBMC/OQAM,” 39th IEEE Int’l Conf. Acoustics, Speech and Signal Processing (ICASSP-2014), Florence, Italy, May 2014. [C22] C. Mavrokefalidis, E. Kofidis, A. Rontogiannis, and S. Theodoridis, “Preamble design for channel estimation in OFDM/OQAM cooperative systems,” 10th IEEE Int’l Symp. Wireless Communication Systems (ISWCS-2013), Ilmenau, Germany, Aug. 2013. [C21] C. Mavrokefalidis, E. Kofidis, A. Rontogiannis, and S. Theodoridis, “Optimal training design for channel estimation in OFDM/OQAM cooperative systems,” 14th IEEE Int’l Workshop on Signal Process. Advances in Wireless Commun. (SPAWC-2013), Darmstadt, Germany, June 2013. [C20]D. Katselis, E. Kofidis, and S. Theodoridis, “On OFDM/OQAM receivers,” 20th European Signal Processing Conf. (EUSIPCO-2012), Bucharest, Romania, Aug. 2012. [C19]E. Kofidis and D. Katselis, “Preamble-based channel estimation in MIMO-OFDM/OQAM systems,” IEEE Int’l Conf. Signal and Image Processing Applications (ICSIPA-2011), Kuala Lumpur, Malaysia, Nov. 2011. [C18]E. Kofidis and D. Katselis, “Improved interference approximation method for preamble-based channel estimation in FBMC/OQAM,” 19th European Signal Processing Conf. (EUSIPCO-2011), Barcelona, Spain, Sept. 2011. [C17]D. Katselis, M. Bengtsson, C. Rojas, H. Hjalmarsson, and E. Kofidis, “On preamble-based channel estimation in OFDM/OQAM systems,” 19th European Signal Processing Conf. (EUSIPCO-2011), Barcelona, Spain, Sept. 2011. [C16]C. Rizogiannis, E. Kofidis, A. A. Rontogiannis, and S. Theodoridis, “Adaptive BLAST-type decision-feedback equalizers for DS-CDMA systems,” IEEE Int’l Conf. Communication Systems (ICCS-2010), Singapore, Nov. 2010. [C15]E. Kofidis and A. A. Rontogiannis, “Adaptive BLAST decision feedback equalizer for MIMO-FBMC/OQAM systems,” 21st IEEE Personal, Indoor, and Mobile Radio Communications Conf. (PIMRC-2010), Istanbul, Turkey, Sept. 2010. [C14]D. Katselis, E. Kofidis, and S. Theodoridis, “A low-cost approach to training-based MIMO channel estimation in interference-limited environments,” 8th IEEE Int’l Workshop on Signal Processing Advances in Wireless Communications (SPAWC-2007), Helsinki, Finland, June 2007. [C13]D. Katselis, E. Kofidis, and S. Theodoridis, “Training-based estimation of correlated MIMO fading channels in the presence of colored interference,” IEEE Int’l Symposium on Circuits and Systems (ISCAS-2007), New Orleans, LA, USA, May 2007. [C12]K. Rizogiannis, E. Kofidis, C. B. Papadias, and S. Theodoridis, “Semi-blind maximum likelihood joint channel estimation / data detection for MIMO fading channels,” 7th IEEE Int’l Workshop on Signal Processing Advances in Wireless Communications (SPAWC-2006), Cannes, France, July 2006. [C11]E. Kofidis, Y. Kopsinis, and S. Theodoridis, “On the least-squares performance of a novel efficient center estimation method for clustering-based MLSE equalization,” Signal Processing VIII: Theories and Applications (EUSIPCO-2004), Vienna, Austria, Sept. 2004. [C10]Y. Kopsinis, S. Theodoridis, and E. Kofidis, “An efficient low complexity cluster-based MLSE equalizer for frequency-selective fading channels,” Signal Processing VIII: Theories and Applications (EUSIPCO-2004), Vienna, Austria, Sept. 2004. [C9] E. Kofidis and P. A. Regalia, “Spreading sequence design via perfect reconstruction filter banks,” 19th Brazilian Telecommunications Symposium (SBrT-2001), Fortaleza, Brazil, Sept. 2001. [C8] P. A. Regalia and E. Kofidis, “A “unimodal” blind equalization criterion,” Signal Processing X: Theories and Applications (EUSIPCO-2000), Tampere, Finland, Sept. 2000. [C7] E. Kofidis and P. A. Regalia, “Design of biorthogonal multi-band FIR filter banks given several of the analysis and synthesis filters,” Signal Processing X: Theories and Applications (EUSIPCO-2000), Tampere, Finland, Sept. 2000. [C6] P. A. Regalia and E. Kofidis, “The higher-order power method revisited: Convergence proofs and effective initialization,” IEEE Int’l Conf. Acoustics, Speech and Signal Processing (ICASSP-2000), Istanbul, Turkey, June 2000. [C5] E. Kofidis, S. Theodoridis and N. Kalouptsidis, “Designing FIR perfect-reconstruction systems given several of the analysis and synthesis filters,” 13th Int’l Conf. Digital Signal Processing (DSP-97), Santorini, Greece, July 1997. [C4] E. Kofidis, S. Theodoridis, C. Kotropoulos and I. Pitas, “Application of neural networks and order statistics filters to speckle noise reduction in remote sensing imaging,” pp. 45–57 in Neurocomputation in Remote Sensing Data Analysis, I. Kanellopoulos, D. G. Wilkinson, F. Roli, and J. Austin (Eds.), Springer-Verlag, 1997. [C3] E. Kofidis, S. Theodoridis and N. Kalouptsidis, “Perfect-reconstruction FIR filter banks with mirror-image symmetry,” IEEE Int’l Conf. Electronics, Circuits and Systems (ICECS’96), Rhodes, Greece, Oct. 1996. [C2] E. Kofidis, S. Theodoridis and N. Kalouptsidis, “On perfect-reconstruction FIR filter banks,” Signal Processing VIII: Theories and Applications (EUSIPCO-96), Trieste, Italy, Sept.1996. [C1] E. Kofidis, S. Theodoridis, C. Kotropoulos and I. Pitas, “Segmentation-based L-filtering of speckle noise in ultrasonic images,” Nonlinear Image Processing V, SPIE’94, San Diego, CA, USA, Feb. 1994. |