Publications

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Journal papers

  • Andreu Blasco Coll, Gonzalo Vazquez-Vilar, Javier R. Fonollosa. “Generalized perfect codes for symmetric classical-quantum channels,” IEEE Transactions on Information Theory, vol. 68, no. 9, pp. 5923-5936, Sept. 2022. [ IEEE Xplore ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar. “Error Probability Bounds for Gaussian Channels under Maximal and Average Power Constraints,” IEEE Transactions on Information Theory, vol. 67, no. 6, pp. 3965-3985, Mar. 2021. [ IEEE Xplore ] [ BibTeX ]

  • Alejandro Lancho, Johan Östman, Giuseppe Durisi, Tobias Koch, Gonzalo Vazquez-Vilar. “Saddlepoint Approximations for Short-Packet Wireless Communications,” IEEE Transactions on Wireless Communications, vol. 19, no. 7, pp. 4831-4846, Jul. 2020. [ IEEE Xplore ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar, Albert Guillén i Fàbregas, Sergio Verdú. “The Error Probability of Generalized Perfect Codes via the Meta-Converse,” IEEE Transactions on Information Theory, vol. 65, no. 9, pp. 5705-5717, Sept. 2019. [ IEEE Xplore ] [ BibTeX ]

  • Grace Villacres, Tobias Koch, Aydin Sezgin, Gonzalo Vazquez-Vilar. “Robust Signaling for Bursty Interference,” MDPI Entropy, vol. 20, no. 11, Nov. 2018. [ Entropy ] [ BibTeX ]

  • Tobias Koch, Gonzalo Vazquez-Vilar. “A Rigorous Approach to High-Resolution Entropy-Contrained Vector Quantization,” IEEE Transactions on Information Theory, vol. 64, no. 4, pp. 2609-2625, April 2018. [ IEEE Xplore ] [ BibTeX ]

  • Josep Sala-Alvarez, Gonzalo Vazquez-Vilar, Roberto Lopez-Valcarce, Saeid Sedighi and Abbas Taherpour. “Multiantenna GLR Detection of Rank-One Signals with a Known Power Spectral Shape under Spatially Uncorrelated Noise,” IEEE Transactions on Signal Processing, vol.64, no.23, pp.6269-6283, Dec 2016. [ IEEE Xplore ] [ BibTeX ]

  • Irina E. Bocharova, Albert Guillén i Fàbregas, Boris D. Kudryashov, Alfonso Martinez, Adria Tauste Campo and Gonzalo Vazquez-Vilar. “Multi-Class Source-Channel Coding,” IEEE Transactions on Information Theory, vol.62, no.9, pp.5093-5104, Sep. 2016. [ IEEE Xplore ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar, Adria Tauste Campo, Albert Guillén i Fàbregas, Alfonso Martinez. “Bayesian M-ary Hypothesis Testing: The Meta-Converse and Verdú-Han Bounds are Tight,” IEEE Transactions on Information Theory, vol.62, no.5, pp.2324-2333, May 2016. [ IEEE Xplore ] [ BibTeX ]

  • Adria Tauste, Gonzalo Vazquez-Vilar, Albert Guillén i Fàbregas, Tobias Koch and Alfonso Martinez. “A derivation of the source-channel error exponent using non-identical product distributions,” IEEE Transactions on Information Theory, vol.60, no.6, pp.3209-3217, Jun. 2014. [ IEEE Xplore ] [ BibTeX ]

  • Josep Sala, Gonzalo Vazquez-Vilar and Roberto López-Valcarce. “Multiantenna GLR detection of rank-one signals with known power spectrum in white noise with unknown spatial correlation,” IEEE Transactions on Signal Processing, vol.60, no.6, pp.3065-3078, Jun. 2012. [ IEEE Xplore ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar, Roberto López-Valcarce and Josep Sala. “Multiantenna spectrum sensing exploiting spectral a priori information,” IEEE Transactions on Wireless Communications, vol.10, no.12, pp.4345-4355, Dec. 2011. [ IEEE Xplore ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar and Roberto López-Valcarce. “Spectrum sensing exploiting guard bands and weak channels,” IEEE Transactions on Signal Processing, vol.59, no.12, pp.6045-6057, Dec. 2011. [ IEEE Xplore ] [ BibTeX ]

  • David Ramírez, Gonzalo Vazquez-Vilar, Roberto López-Valcarce, Javier Vía and Ignacio Santamaría. “Detection of rank-\(P\) signals in cognitive radio networks with uncalibrated multiple antennas,” IEEE Transactions on Signal Processing, vol.59, no.8, pp.3764-3774, Aug. 2011. [ IEEE Xplore ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar, Carlos Mosquera and Sudharman K. Jayaweera. “Primary User Enters the Game: Performance of Dynamic Spectrum Leasing in Cognitive Radio Networks,” IEEE Transactions on Wireless Communications, vol.9, no.12, pp.3625-3629, Dec. 2010. [ IEEE Xplore ] [ BibTeX ]

  • Sudharman K. Jayaweera, Gonzalo Vazquez-Vilar and Carlos Mosquera. “Dynamic Spectrum Leasing (DSL): A New Paradigm for Spectrum Sharing in Cognitive Radio Networks,” IEEE Transactions on Vehicular Technology, vol.59, no.5, pp.2328-2339, Jun. 2010. [ IEEE Xplore ] [ BibTeX ]

Conference proceedings

2020

  • Grace Villacrés, Tobias Koch, and Gonzalo Vazquez-Vilar. “Bursty wireless networks of bounded capacity,” 2020 IEEE Int. Symp. Inf. Theory (ISIT 2020). Los Angeles, CA, USA, June 21-26, 2020. [ PDF ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar. “On the Error Probability of Optimal Codes in Gaussian Channels under Average Power Constraint,” 2020 Int. Zurich Seminar on Comm. (IZS 2020). Zurich, Switzerland, February 26–28, 2020. [ PDF ] [ BibTeX ]

2019

  • Alejandro Lancho, Johan Östman, Tobias Koch, and Gonzalo Vazquez-Vilar. “Finite-blocklength approximations for noncoherent Rayleigh block-fading channels,” 2019 Asilomar Conference on Signals, Systems, and Computers (ACSSC 2019). Pacific Grove, CA, USA, November 3-6, 2019. Invited. [ IEEE Xplore ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar. “On the error probability of optimal codes in Gaussian channels under maximal power constraint,” 2019 IEEE Int. Symp. Inf. Theory (ISIT 2019). Paris, France, July 7-12, 2019. [ PDF ] [ BibTeX ]

  • Alejandro Lancho, Johan Östman, Giuseppe Durisi, Tobias Koch, and Gonzalo Vazquez-Vilar. “Saddlepoint approximations for noncoherent single-antenna Rayleigh block-fading channels,” 2019 IEEE Int. Symp. Inf. Theory (ISIT 2019). Paris, France, July 7-12, 2019. [ IEEE Xplore ] [ BibTeX ]

2018

  • Gonzalo Vazquez-Vilar, Albert Guillén i Fàbregas, Tobias Koch, and Alejandro Lancho. “Saddlepoint approximation of the error probability of binary hypothesis testing,” 2018 IEEE Int. Symp. Inf. Theory (ISIT 2018). Vail, USA, Jun 17-22, 2018. [ PDF ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar, Albert Guillén i Fàbregas, and Sergio Verdú. “The error probability of generalized perfect codes,” 2018 IEEE Int. Symp. Inf. Theory (ISIT 2018). Vail, USA, Jun 17-22, 2018. [ PDF ] [ BibTeX ]

  • Josep Font-Segura, Gonzalo Vazquez-Vilar, Alfonso Martinez, Albert Guillén i Fàbregas, and Alejandro Lancho. “Saddlepoint approximations of lower and upper bounds to the error probability in channel coding,” 52th Annual Conference on Information Sciences and Systems (CISS 2018). Princeton, USA, March 21-23, 2018. Invited. [ PDF ] [ BibTeX ]

2016

  • Gonzalo Vazquez-Vilar. “Multiple quantum hypothesis testing expressions and classical-quantum channel converse bounds,” 2016 IEEE Int. Symp. Inf. Theory (ISIT 2016). Barcelona, Spain, Jul 10-15, 2016. [ PDF ] [ BibTeX ]

  • Tobias Koch, and Gonzalo Vazquez-Vilar. “A General Rate-Distortion Converse Bound for Entropy-Constrained Scalar Quantization,” 2016 IEEE Int. Symp. Inf. Theory (ISIT 2016). Barcelona, Spain, Jul 10-15, 2016. [ IEEE Xplore ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar, Albert Guillén i Fàbregas, and Sergio Verdú. “Hypothesis testing and quasi-perfect codes,” 2016 Int. Zurich Seminar on Comm. (IZS 2016). Zurich, Switzerland, Mar 2-4, 2016. Invited. [ PDF ] [ BibTeX ]

2015

  • Gonzalo Vazquez-Vilar, Alfonso Martinez, and Albert Guillén i Fàbregas. “A derivation of the cost-constrained sphere-packing exponent,” 2015 IEEE Int. Symp. Inf. Theory (ISIT 2015). Hong Kong, Jun 14-19, 2015. [ PDF ] [ BibTeX ]

2014

  • Irina E. Bocharova, Albert Guillén i Fàbregas, Boris D. Kudryashov, Alfonso Martinez, Adria Tauste Campo, and Gonzalo Vazquez-Vilar. “Low-complexity fixed-to-fixed joint source-channel coding,” 8th Int. Symp. on Turbo Codes and Iterative Information Processing (ISTC 2014). Bremen, Germany, Aug 18-22, 2014. Invited. [ PDF ] [ BibTeX ]

  • Irina E. Bocharova, Albert Guillén i Fàbregas, Boris D. Kudryashov, Alfonso Martinez, Adria Tauste Campo, and Gonzalo Vazquez-Vilar. “Source-channel coding with multiple classes,” 2014 IEEE Int. Symp. Inf. Theory (ISIT 2014). Honolulu, HI, USA, Jun 29-Jul 4, 2014. [ PDF ] [ BibTeX ]

2013

  • Gonzalo Vazquez-Vilar, Adria Tauste, Albert Guillén i Fàbregas, and Alfonso Martinez. “The meta-converse bound is tight,” 2013 IEEE Int. Symp. Inf. Theory (ISIT 2013). Istanbul, Turkey, Jul 7-12, 2013. [ PDF ] [ BibTeX ]

2012

  • Adria Tauste, Gonzalo Vazquez-Vilar, Albert Guillén i Fàbregas, Tobias Koch, and Alfonso Martinez. “Converse bounds for finite-length joint source-channel coding,” 50th Annual Allerton Conference on Communication, Control and Computing (Allerton 2012). Allerton, IL, USA., Oct 1-5, 2012. Invited. [ PDF ] [ BibTeX ]

  • Adria Tauste, Gonzalo Vazquez-Vilar, Albert Guillén i Fàbregas, Tobias Koch, and Alfonso Martinez. “Achieving Csiszár’s exponent for joint source-channel coding with product distributions,” 2012 IEEE Int. Symp. Inf. Theory (ISIT 2012). Boston, USA., Jul 1-6, 2012. [ PDF ] [ BibTeX ]

  • Adria Tauste, Gonzalo Vazquez-Vilar, Albert Guillén i Fàbregas, Tobias Koch and Alfonso Martinez. “Random coding bounds that attain the joint source-channel exponent,” 46th Annual Conference on Information Sciences and Systems (CISS 2012). Princeton, USA., March 21-23, 2012. Invited. [ PDF ] [ BibTeX ]

  • María Elena Domínguez-Jiménez, Nuria González-Prelcic, Gonzalo Vazquez-Vilar, and Roberto López-Valcarce. “Design of universal multicoset sampling patterns for compressed sensing of multiband sparse signals,” 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2012). Kyoto, Japan., March, 25-30 2012. [ IEEE Xplore ] [ BibTeX ]

2011

  • Gonzalo Vazquez-Vilar, David Ramirez, Roberto López-Valcarce, Javier Via, and Ignacio 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., Oct. 26-29, 2011. Invited. [ PDF ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar, Daniel Romero, Roberto Lopez-Valcarce, David Ramirez, Javier Via, Ignacio Santamaria, and Josep Sala. “Recent advances in multiantenna spectrum sensing: complexity, noise uncertainty, and signal rank issues (extended abstract)”, 2nd International Workshop of the COST Action IC0902, Barcelona, Spain., Oct. 5-7, 2011. [ PDF ] [ BibTeX ]

  • Adria Tauste, Gonzalo Vazquez-Vilar, Albert Guillén i Fàbregas, and Alfonso Martinez. “Random-coding joint source-channel bounds,” 2011 IEEE Int. Symp. Inf. Theory (ISIT 2011). Saint Petersburg, Russia., Jul 31 - Aug 5, 2011. [ IEEE Xplore ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar, Roberto López-Valcarce, and Ashish Pandharipande. “Detection diversity of multiantenna spectrum sensors,” 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2011). Prague, Czech Republic., May, 22-27 2011. [ PDF ] [ BibTeX ]

  • David Ramirez, Gonzalo Vazquez-Vilar, Roberto López-Valcarce, Javier Via, and Ignacio 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, 22-27 2011. [ PDF ] [ BibTeX ]

2010

  • Roberto López-Valcarce, Gonzalo Vazquez-Vilar, and Josep 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, 14-16 2010. Invited. [ PDF ] [ BibTeX ]

  • Georges El-Howayek, Sudharman K. Jayaweera, Kamrul Hakim, Gonzalo Vazquez-Vilar, and Carlos Mosquera. “Dynamic Spectrum Leasing (DSL) in dynamic channels,” ICC’10 Workshop on Cognitive Radio Interfaces and Signal Processing (ICC CRISP’10). Cape Town, South Africa. May 23, 2010. [ IEEE Xplore ] [ BibTeX ]

  • Gonzalo Vazquez-Vilar, Roberto López-Valcarce, Carlos Mosquera and Nuria González-Prelcic. “Wideband spectral estimation from compressed measurements: Exploiting spectral a priori information in cognitive radio systems,” IEEE International Conference on Acoustics, Speech and Signal Processing 2010 (ICASSP 2010). Dallas, USA., March, 14-19 2010. [ PDF ] [ BibTeX ]

2009

  • Nicolai Czink, Bernd Bandemer, Gonzalo Vazquez-Vilar, Louay Jalloul, Claude Oestges, Arogyaswami Paulraj. “Spatial separation of multi-user MIMO channels,” 20th Personal, Indoor and Mobile Radio Communications Symposium 2009 (PIMRC 09). Tokyo, Japan., Sept, 13-16 2009. [ PDF ] [ BibTeX ]

  • Bernd Bandemer, Gonzalo Vazquez-Vilar, Abbas El Gamal. “On the sum capacity of a class of cyclically symmetric deterministic interference channels,” 2009 IEEE Int. Symp. Inf. Theory (ISIT 2009). Coex, Seoul, Korea. , Jun 28 - Jul 3, 2009. [ IEEE Xplore ] [ BibTeX ]

  • Roberto López-Valcarce, Gonzalo Vazquez-Vilar, and Marcos Álvarez-Díaz. “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., Jun, 22-24 2009. [ PDF ] [ BibTeX ]

  • Roberto López-Valcarce, and Gonzalo 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, Jun 21-24, 2009. [ PDF ] [ BibTeX ]

2008

  • Gonzalo Vazquez-Vilar, Vinay Majjigi, Aydin Sezgin, and Arogyaswami Paulraj. “Mobility dependent feedback scheme for point-to-point MIMO systems,” Asilomar Conference on Signals, Systems, and Computers (ACSSC 2008). Pacific Grove, CA, U.S.A. , Oct 26-29, 2008. [ PDF ] [ BibTeX ]

Ph.D. Thesis

  • Gonzalo Vazquez-Vilar. “Interference and network management in cognitive communication systems,” Doctoral Thesis, Signal Processing and Communications Department, University of Vigo, Jun 2011. [ PDF ] [ BibTeX ]

Technical reports

  • Nicolai Czink, Bernd Bandemer, Gonzalo Vazquez-Vilar, Louay Jalloul, Claude Oestges, Arogyaswami Paulraj. “Spatial separation of multi-user MIMO channels,” COST 2100 Management Commitee Meeting, Temporary Document. Lille, France, Oct 6-8, 2008. [ PDF ]

  • Nicolai Czink, Bernd Bandemer, Gonzalo Vazquez-Vilar, Louay Jalloul, Arogyaswami Paulraj. “Can multi-user MIMO measurements be done using a single channel sounder?,” COST 2100 Management Commitee Meeting, Temporary Document. Lille, France, Oct 6-8, 2008. [ PDF ]

  • Nicolai Czink, Bernd Bandemer, Gonzalo Vazquez-Vilar, Louay Jalloul, Arogyaswami Paulraj. “Stanford July 2008 radio channel measurement campaign,” COST 2100 Management Commitee Meeting, Temporary Document. Lille, France, Oct 6-8, 2008. [ PDF