Alfonso Martinez


Alfonso Martinez
Information Theory and Coding Group
Department of Information and Communication Technologies
Universitat Pompeu Fabra
Contact (email): 
alfonso [dot] martinez [at] upf [dot] edu
+34 93 542 2922


I obtained my M. Sc. degree in Electrical Engineering in 1997 from the University of Zaragoza, in Spain. In the period from 1998 to 2003 I was with the research centre of the European Space Agency (ESA-ESTEC) in Noordwijk, The Netherlands, working as a systems engineer. Our work on APSK modulation was instrumental in the definition of the physical layer of DVB-S2.

From 2003 to 2007 I was a Research and Teaching Assistant at the Signal Processing Systems group of the Technische Universiteit Eindhoven. My research focused on optical communication theory, and more specifically on the links between classical and quantum information theory. My Ph. D. thesis was entitled "Information-theoretic analysis of a family of additive energy channels".

From 2008 to 2010, I was a post-doctoral fellow with the information-theoretic learning group at CWI, in Amsterdam, the Netherlands. In 2011, I was a Research Associate at the Signal Processing Lab, Department of Engineering, University of Cambridge. At the end of 2011, I joined the Information Theory and Coding group at UPF as a Ramón y Cajal Research Fellow.


Journal Article
J. Scarlett, A. Martinez, and A. Guillén i Fàbregas, "Multiuser Random Coding Techniques for Mismatched Decoding", IEEE Transactions on Information Theory, vol. 62, issue 7, pp. 3950-3970, 07/2016.
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.
A. Martinez, "Communication by Energy Modulation: the Additive Exponential Noise Channel", IEEE Trans. Inf. Theory, vol. 57, no. 6, pp. 3333–3351, June, 2011.
A. Guillén i Fàbregas, A. Martinez, G. Caire, and F. M. J. Willems, "Bit-Interleaved Coded Modulation in the Wideband Regime", IEEE Transactions on Information Theory, vol. 54, pp. 5447–5455, 2008.
A. Guillén i Fàbregas, and A. Martinez, "Derivative of BICM mutual information", IET Electronics Letters, vol. 43, pp. 1219–1220, Oct, 2007.
A. Martinez, A. Guillén i Fàbregas, and G. Caire, "A closed-form approximation for the error probability of BPSK fading channels", IEEE Transactions on Wireless Communications, vol. 6, pp. 2051–2054, june, 2007.
A. Martinez, "Spectral Efficiency of Optical Direct Detection", J. Opt. Soc. Am. B, vol. 24, no. 4, pp. 739–749, April, 2007.
M. Rovini, and A. Martinez, "Efficient Stopping Rule for Turbo Decoders", Electron. Lett., vol. 42, no. 4, pp. 235-236, February, 2006.
R. de Gaudenzi, A. Guillén i Fàbregas, and A. Martinez, "Turbo-coded APSK modulations design for satellite broadband communications", International Journal of Satellite Communications and Networking, vol. 24, pp. 261–281, 2006.
A. Martinez, A. Guillén i Fàbregas, and G. Caire, "Error probability analysis of bit-interleaved coded modulation", IEEE Transactions on Information Theory, vol. 52, pp. 262–271, 2006.