Publications

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2018
2013
A. Guillén i Fàbregas, I. Land, and A. Martinez, "Extremes of Error Exponents", IEEE Transactions on Information Theory, vol. 59, issue 4, pp. 2201-2207, 04/2013.
2012
2011
G. Vazquez-Vilar, D. Ramirez, R. Lopez-Valcarce, J. Via, and I. Santamaria, "Spatial rank estimation in Cognitive Radio Networks with uncalibrated multiple antennas", 4th International Conference on Cognitive Radio and Advanced Spectrum Management (CogART 2011), Barcelona, Spain, October, 2011.
G. Vazquez-Vilar, R. Lopez-Valcarce, and A. Pandharipande, "Detection diversity of multiantenna spectrum sensors", 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2011), Prague, Czech Republic, May, 2011.
D. Ramirez, G. Vazquez-Vilar, R. Lopez-Valcarce, J. Via, and I. Santamaria, "Multiantenna Detection under Noise uncertainty and primary user's spatial structure", 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2011), Prague, Czech Republic, May, 2011.
G. Lechner, A. Guillén i Fàbregas, L. K. Rasmussen, and K. D. Nguyen, "Optimal Power Control for LDPC Codes in Block-fading Channels", IEEE Transactions on Communications, vol. 59, pp. 1759–1765, Jul., 2011.
G. Vazquez-Vilar, R. Lopez-Valcarce, and J. Sala, "Multiantenna spectrum sensing exploiting spectral a priori information", Wireless Communications, IEEE Transactions on, vol. 10, no. 12, pp. 4345-4355, December, 2011.
G. Vazquez-Vilar, and R. Lopez-Valcarce, "Spectrum sensing exploiting guard bands and weak channels", Signal Processing, IEEE Transactions on, vol. 59, no. 12, pp. 6045-6057, December, 2011.
A. Guillén i Fàbregas, I. Land, and A. Martinez, "Extremes of Random-Coding Error Exponents", 2011 IEEE International Symposium on Information Theory, St Petersburg, Russia, 08/2011.
2010
G. Vazquez-Vilar, R. Lopez-Valcarce, C. Mosquera, and N. Gonzalez-Prelcic, "Wideband Spectral Estimation from Compressed Measurements Exploiting Spectral a priori Information in Cognitive Radio Systems", 2010 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010), Dallas, U.S.A., March, 2010.
R. Lopez-Valcarce, G. Vazquez-Vilar, and J. Sala, "Multiantenna spectrum sensing for Cognitive Radio: overcoming noise uncertainty", The 2nd International Workshop on Cognitive Information Processing (CIP 2010), Elba Island (Tuscany), Italy, June, 2010.
N. Letzepis, K. D. Nguyen, A. Guillén i Fàbregas, and W. G. Cowley, "Hybrid free-space optical and radio-frequency communications: outage analysis", Information Theory Proceedings (ISIT), 2010 IEEE International Symposium on, Austin, TX, USA, IEEE, pp. 2048–2052, 2010.
K. D. Nguyen, N. Letzepis, A. Guillén i Fàbregas, and L. K. Rasmussen, "Outage diversity of MIMO block-fading channels with causal channel state information", Proceedings of the IEEE International Symposium on information Theory Proceedings, Audtin, TX, USA, IEEE, pp. 2168–2172, 2010.
2009
K. D. Nguyen, L. K. Rasmussen, A. Guillén i Fàbregas, and N. Letzepis, "Rate-diversity-delay tradeoff for ARQ systems over MIMO block-fading channels", Proceedings of the IEEE on Australian Communications Theory Workshop, AusCTW 2009, 4805611, no. 4805611, Sydney, Australia, IEEE, pp. 116–121, Mar, 2009.
R. Lopez-Valcarce, G. Vazquez-Vilar, and M. Alvarez-Diaz, "Multiantenna detection of multicarrier primary signals exploiting spectral a priori information", 4th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (Crowncom 2009), Hannover, Germany, June, 2009.
R. Lopez-Valcarce, and G. Vazquez-Vilar, "Wideband Spectrum Sensing in Cognitive Radio: Joint Estimation of Noise Variance and Multiple Signal Levels", 2009 IEEE International Workshop on Signal Processing Advances for Wireless Communications (Spawc 2009), Perugia, Italy, June, 2009.
L. K. Rasmussen, A. Guillén i Fàbregas, K. D. Nguyen, and N. Letzepis, "MIMO ARQ systems with multi-level feedback", Proceedings of the 2009 IEEE International Symposium on Information Theory, Seoul, Korea, IEEE: Institute of Electrical and Electronics Engineers, pp. 254–258, Aug, 2009.
N. Letzepis, K. D. Nguyen, A. Guillén i Fàbregas, and W. G. Cowley, "Outage analysis of the hybrid free-space optical and radio-frequency channel", IEEE Journal on Selected Areas in Communications, vol. 27: IEEE, pp. 1709–1719, 2009.