2006-2012

Häger, Christian; Graell i Amat, Alexandre; Alvarado, Alex; Agrell, Erik: Constellation Optimization for Coherent Optical Channels Distorted by Nonlinear Phase Noise. IEEE Global Communications Conference (GLOBECOM), Anaheim, CA, Dec. 2012.

Ivanov, Mikhail; Brännström, Fredrik; Alvarado, Alex; Agrell, Erik: General BER Expression for One-Dimensional Constellations. IEEE Global Communications Conference (GLOBECOM), Anaheim, CA, Dec. 2012.

Alvarado, Alex; Graell i Amat, Alexandre; Brännström, Fredrik; Agrell, Erik: On the Equivalence of TCM Encoders. IEEE International Symposium on Information Theory (ISIT) 2012, Cambridge, MA.

Agrell, Erik; Alvarado, Alex: First-order asymptotics of the BICM mutual information: Uniform vs. nonuniform distributions. Information Theory and Applications Workshop (ITA) 2012, San Diego, CA [Invited].

Graell i Amat, Alexandre; Alvarado, Alex; Brännström, Fredrik; Agrell, Erik: Asymptotically optimal trellis coded modulation systems. Information Theory and Applications Workshop (ITA) 2012, San Diego, CA [Invited].

Agrell, Erik; Alvarado, Alex: Achieving the Shannon Limit with Probabilistically Shaped BICM. IEEE International Symposium on Information Theory (ISIT) 2012, Cambridge, MA.

Böcherer, Georg; Altenbach, Fabian; Alvarado, Alex; Corroy, Steven; Mathar, Rudolf: An Efficient Algorithm to Calculate BICM Capacity. IEEE International Symposium on Information Theory (ISIT) 2012, Cambridge, MA.

Alvarado, Alex; Brännström, Fredrik; Agrell, Erik: High SNR Bounds for the BICM Capacity. IEEE Information Theory Workshop ITW 2011, Paratay, Brazil.

Agrell, Erik; Alvarado, Alex: Optimal Alphabets and Binary Labelings for BICM at Low SNR. IEEE Transactions on Information Theory, 57 (10) pp. 6650-6672.

Alvarado, Alex; Szczecinski, Leszek; Agrell, Erik: On BICM receivers for TCM transmission. IEEE Transactions on Communications, 59 (10) pp. 2692-2702.

Hossain, Md. Jahangir; Alvarado, Alex; Szczecinski, Leszek: Towards Fully Optimized BICM Transceivers. IEEE Transactions on Communications, 59 (11) pp. 3027-3039.

Alvarado, Alex; Szczecinski, Leszek; Agrell, Erik: On the performance of BICM with trivial interleavers in nonfading channels. IEEE International Conference on Communications ICC 2011.

Hossain, Md. Jahangir; Alvarado, Alex; Szczecinski, Leszek: Constellation and Interleaver Design for BICM. IEEE Global Communications Conference 2011.

Alvarado, Alex; Agrell, Erik; Guillén i Fàbregas, Albert; Martinez, Alfonso: Corrections to ‘Bit-interleaved coded modulation in the wideband regime’. IEEE Transactions on Information Theory, 56 (12) pp. 6513.

Alvarado, Alex; Agrell, Erik; Szczecinski, Leszek; Svensson, Arne: Exploiting UEP in QAM-based BICM: Interleaver and Code Design. IEEE Transactions on Communications, 58 (2) pp. 500-510.

Alvarado, Alex; Szczecinski, Leszek; Agrell, Erik; Svensson, Arne: On BICM-ID with Multiple Interleavers. IEEE Communications Letters, 14 (9) pp. 785-787.

Hossain, Md. Jahangir; Alvarado, Alex; Szczecinski, Leszek: BICM Transmission using Non-Uniform QAM Constellations: Performance Analysis and Design. IEEE International Conference on Communications ICC 2010, Cape Town, South Africa.

Agrell, Erik; Alvarado, Alex: On optimal constellations for BICM at low SNR. Proceedings IEEE Information Theory Workshop ITW 2009, Taormina, Italy [Best Poster Award], pp. 480-484.

Alvarado, Alex; Szczecinski, Leszek; Feick, Rodolfo; Ahumada, Luciano: Distribution of L-values in Gray-mapped M^2-QAM: Closed-form Approximations and Applications. IEEE Transactions on Communications, 57 (7) pp. 2071-2079.

Alvarado, Alex; Agrell, Erik; Szczecinski, Leszek; Svensson, Arne: Unequal Error Protection in BICM with QAM Constellations: Interleaver and Code Design. Proceedings IEEE International Conference on Communications ICC 2009, Dresden, Germany.

Alvarado, Alex; Agrell, Erik; Svensson, Arne: On the Capacity of BICM with QAM Constellations. Proceedings International Wireless Communications and Mobile Computing Conference, IWCMC’09, Leipzig, Germany [Invited].

Alvarado, Alex; Núñez, Víctor; Szczecinski, Leszek; Agrell, Erik: Correcting Suboptimal Metrics in Iterative Decoders. Proceedings IEEE International Conference on Communications ICC 2009, Dresden, Germany.

Szczecinski, Leszek; Alvarado, Alex; Feick, Rodolfo: Distribution of Max-Log Metrics for QAM-based BICM in Fading Channels. IEEE Transactions on Communications, 57 (9) pp. 2558-2563.

Alvarado, Alex; Szczecinski, Leszek; Agrell, Erik; Svensson, Arne: On the Design of Interleavers for BICM Transmission. Proceedings European Wireless Conference 2008, EW2008, Prague, Czech Republic.

Szczecinski, Leszek; Alvarado, Alex; Feick, Rodolfo: Closed-form approximation of Coded BER in QAM-based BICM Faded Transmission. IEEE Sarnoff Symposium 2008.

Alvarado, Alex; Szczecinski, Leszek; Feick, Rodolfo: Distribution of L-values in Gray-mapped M^2-QAM Signals: Exact Expressions and Simple Approximations. IEEE Global Telecommunications Conference, GLOBECOM 2007.

Alvarado, Alex; Szczecinski, Leszek; Feick, Rodolfo: On the Distribution of Extrinsic L-values in Gray-mapped 16-QAM. AMC International Wireless Communications and Mobile Computing Conference 2007, IWCMC 2007.

Szczecinski, Leszek; Alvarado, Alex; Feick, Rodolfo: Probability Density Functions of Reliability Metrics for 16-QAM-Based BICM Transmission in Rayleigh Channel. IEEE International Conference on Communications ICC 2007.

Alvarado, Alex; Carrasco, Hector; Feick, Rodolfo: On Adaptive BICM with Finite Block-Length and Simplified Metrics Calculation. IEEE Vehicular Technology Conference 2006, VTC-2006 Fall.

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