Ignacio Santamaría

Ignacio Santamaría's picture
Full professor
Advanced Signal Processing Group (GTAS)
i.santamaria [at] unican.es
+34 942 201552
Department of Communications Engineering (DICOM)
University of Cantabria
Research interests: 
  • Signal processing techniques for wireless communications.
    • Single-user and multiuser MIMO systems, STBCs, interference alignment.
    • Cognitive radio networks
    • Channel estimation/equalization, beamforming, synchronization, detection,...
    • Development of hardware MIMO testbeds and performance evaluation.
  • Machine-learning techniques and its application to communications.
    • Kernel methods and adaptive information processing systems.
    • Multivariate statistical techniques: PCA, CCA and ICA.
    • Nonlinear modeling.

Ignacio Santamaría received his Telecommunication Engineer Degree and his Ph.D. in electrical engineering from the Polytechnic University of Madrid, Spain in 1991 and 1995, respectively. In 1992 he joined the Departament of Communications Engineering, Universidad de Cantabria, Spain, where he is Full Professor since 2007. He is the Head of the Advanced Signal Processing Group, which conducts research in the general area of statistical signal processing, communication systems, and machine learning. Using theories and tools from adaptive learning, multivariate statistical analysis, and information theory, his research group is investigating various practical problems that arise in wireless communication systems and sensor networks. As a result of these research lines, he has more than 200 publications in journals and international conferences and holds 2 patents. Further, he has been involved as principal investigator on a number of national and EU funded projects. He was a Visiting Researcher with the Computational NeuroEngineering Laboratory, University of Florida, Gainesville (2000 and 2004), with the Wireless Networking and Communications Group, University of Texas at Austin, Austin (2009), and at Colorado State University in 2015.

Ignacio Santamaría is a Senior Member of IEEE and participates in the Signal Processing, Computational Intelligence, Information Theory, and Communications Societies. He has served as a reviewer and program committee member for numerous conferences and journals. He was Technical Co-Chair of the 2nd International ICSTConference on Mobile Lightweight Wireless Systems (MOBILIGHT 2010), Special Sessions Co-Chair of the 2011 European Signal Processing Conference (EUSIPCO 2011), General Co-Chair of the 2012 IEEE Workshop on Machine Learning for Signal Processing (MLSP 2012) and publicity chair of ICASSP 2016. He has been a member of the IEEE Machine Learning for Signal Processing Technical Committee (2009-2014). He had served as Associate Editor of the IEEE Transactions on Signal Processing and Senior Area Editor in the same publication.

His google scholar profile can be found at

Selected publications: 
Journal Article


Ó. González, C. Beltrán, and I. Santamaría, "On the Number of Interference Alignment Solutions for the K-User MIMO Channel with Constant Coefficients", IEEE Transaction on Information Theory, vol. 61, issue 11, pp. 6028-6048, November, 2015. PDF icon PDF Version (1.22 MB)
D. Ramírez, P. J. Schreier, J. Vía, I. Santamaría, and L. L. Scharf, "Detection of Multivariate Cyclostationarity", IEEE Transactions on Signal Processing, vol. 63, issue 20, pp. 5395-5408, October, 2015. PDF icon PDF Version (2.61 MB)
C. Lameiro, Ó. González, J. A. García-Naya, I. Santamaría, and L. Castedo, "Experimental Evaluation of Interference Alignment for Broadband WLAN Systems", EURASIP Journal on Wireless Communications and Networking, issue 180, June, 2015. PDF icon PDF Version (4.14 MB)


Ó. González, C. Beltrán, and I. Santamaría, "A Feasibility Test for Linear Interference Alignment in MIMO Channels with Constant Coefficients", IEEE Transactions on Information Theory., vol. 60, issue 3, pp. 1840-1856, March, 2014. PDF icon PDF Version (466.59 KB)



S. Van Vaerenbergh, M. Lázaro-Gredilla, and I. Santamaría, "Kernel Recursive Least-Squares Tracker for Time-Varying Regression", IEEE Transactions on Neural Networks and Learning Systems, vol. 23, issue 8, pp. 1313--1326, August, 2012. PDF icon PDF Version (861.59 KB)



J. Vía, D. Ramírez, and I. Santamaría, "Properness and Widely Linear Processing of Quaternion Random Vectors", IEEE Transactions on Information Theory, vol. 56, no. 7, pp. 3502–3515, July, 2010. PDF icon PDF Version (440.87 KB)
D. Ramírez, J. Vía, I. Santamaría, and L. L. Scharf, "Detection of Spatially Correlated Gaussian Time Series", IEEE Transactions on Signal Processing, vol. 58, no. 10, pp. 5006–5015, October, 2010. PDF icon PDF Version (830.05 KB)
J. Vía, I. Santamaría, V. Elvira, and R. Eickhoff, "A General Criterion for Analog Tx-Rx Beamforming under OFDM Transmissions", IEEE Transactions on Signal Processing, vol. 58, no. 4, pp. 2155-2167, April, 2010. PDF icon PDF Version (1.08 MB)


J. Vía, and I. Santamaría, "On the blind identifiability of orthogonal space-time block codes from second order statistics", IEEE Transactions on Information Theory, vol. 54, no. 2, pp. 709-722, February, 2008. PDF icon PDF Version (330.09 KB)
J. Vía, and I. Santamaría, "Correlation Matching Approaches for Blind OSTBC Channel Estimation", IEEE Transactions on Signal Processing, vol. 56, no. 12, pp. 5950–5961, December, 2008. PDF icon PDF Version (621.86 KB)


C. C. Gaudes, I. Santamaría, J. Vía, E. Masgrau, and T. Sese, "Robust array beamforming with sidelobe control using support vector machines", IEEE Transactions on Signal Processing, vol. 55, no. 2, pp. 574–584, February, 2007. PDF icon PDF Version (1.54 MB)


J. Vía, I. Santamaría, and J. Pérez, "Effective channel order estimation based on combined identification / equalization", IEEE Transactions on Signal Processing, vol. 54, no. 9, pp. 3518–3526, september, 2006. PDF icon PDF Version (568.97 KB)
I. Santamaría, P. P. Pokharel, and J. C. Príncipe, "Generalized correlation function: definition, properties and application to blind equalization", IEEE Transactions on Signal Processing, vol. 54, no. 6, pp. 2187–2196, June, 2006. PDF icon PDF Version (460.4 KB)


I. Santamaría, C. Pantaleón, L. Vielva, and J. Ibáñez, "Blind equalization of constant modulus signals using support vector machines", IEEE Transactions on Signal Processing, vol. 52, no. 6, pp. 1773–1782, June, 2004. PDF icon PDF Version (352.6 KB)


I. Santamaría, D. Erdogmus, and J. C. Príncipe, "Entropy Minimization for Supervised Digital Communications Channel Equalization", IEEE Transactions on Signal Processing, vol. 50, no. 5, pp. 1184–1192, May, 2002. PDF icon PDF Version (303.66 KB)