Parallel Discrete-Event Simulation Framework. - Mauricio Marín; Rodrigo Miranda; Alex Alvarado (SCCC, 2003)

On Adaptive BICM with Finite Block-Length and Simplified Metrics Calculation. - Alex Alvarado; Hector Carrasco; Rodolfo Feick (VTC Fall, 2006)

Distribution of L-values in Gray-mapped M2-QAM Signals: Exact Expressions and Simple Approximations. - Alex Alvarado; Leszek Szczecinski; Rodolfo Feick; Luciano Ahumada (GLOBECOM, 2007)

Probability Density Functions of Reliability Metrics for 16-QAM-Based BICM Transmission in Rayleigh Channel. - Leszek Szczecinski; Alex Alvarado; Rodolfo Feick (ICC, 2007)

On the distribution of extrinsic L-values in gray-mapped 16-QAM. - Alex Alvarado; Leszek Szczecinski; Rodolfo Feick (IWCMC, 2007)

On the Design of Interleavers for BICM Transmission. - Alex Alvarado; Leszek Szczecinski; Erik Agrell; Arne Svensson (EW, 2008)

Unequal Error Protection in BICM with QAM Constellations: Interleaver and Code Design. - Alex Alvarado; Erik Agrell; Leszek Szczecinski; Arne Svensson (ICC, 2009)

Correcting Suboptimal Metrics in Iterative Decoders. - Alex Alvarado; Víctor Núñez; Leszek Szczecinski; Erik Agrell (ICC, 2009)

On the capacity of BICM with QAM constellations. - Alex Alvarado; Erik Agrell; Arne Svensson (IWCMC, 2009)

Distribution of L-values in gray-mapped M2-QAM: closed-form approximations and applications. - Alex Alvarado; Leszek Szczecinski; Rodolfo Feick; Luciano Ahumada (IEEE Trans. Commun., 2009)

Distribution of max-log metrics for QAM-based BICM in fading channels. - Leszek Szczecinski; Alex Alvarado; Rodolfo Feick (IEEE Trans. Commun., 2009)

BICM Transmission Using Non-Uniform QAM Constellations: Performance Analysis and Design. - Md. Jahangir Hossain 002; Alex Alvarado; Leszek Szczecinski (ICC, 2010)

BICM Capacity - Part II: First-Order Optimal Signal Sets and Binary Labelings - Erik Agrell; Alex Alvarado (CoRR, 2010)

On the BICM Capacity - Part I: Binary Labelings, Arbitrary Input Distributions, and First-Order Asymptotics - Alex Alvarado; Erik Agrell (CoRR, 2010)

On BICM-ID with Multiple Interleavers. - Alex Alvarado; Leszek Szczecinski; Erik Agrell; Arne Svensson (IEEE Commun. Lett., 2010)

Exploiting UEP in QAM-based BICM: interleaver and code design. - Alex Alvarado; Erik Agrell; Leszek Szczecinski; Arne Svensson (IEEE Trans. Commun., 2010)

Corrections to "Bit-Interleaved Coded Modulation in the Wideband Regime" [Dec 08 5447-5455]. - Alex Alvarado; Erik Agrell; Albert Guillen i Fabregas; Alfonso Martinez (IEEE Trans. Inf. Theory, 2010)

Towards Fully Optimized BICM Transmissions. - Alex Alvarado (2010)

Constellation and Interleaver Design for BICM. - Md. Jahangir Hossain 002; Alex Alvarado; Leszek Szczecinski (GLOBECOM, 2011)

On the Performance of BICM with Trivial Interleavers in Nonfading Channels. - Alex Alvarado; Leszek Szczecinski; Erik Agrell (ICC, 2011)

High SNR bounds for the BICM capacity. - Alex Alvarado; Fredrik Brannstrom; Erik Agrell (ITW, 2011)

On BICM Receivers for TCM Transmission. - Alex Alvarado; Leszek Szczecinski; Erik Agrell (IEEE Trans. Commun., 2011)

Towards Fully Optimized BICM Transceivers. - Md. Jahangir Hossain 002; Alex Alvarado; Leszek Szczecinski (IEEE Trans. Commun., 2011)

Optimal Alphabets and Binary Labelings for BICM at Low SNR. - Erik Agrell; Alex Alvarado (IEEE Trans. Inf. Theory, 2011)

Constellation optimization for coherent optical channels distorted by nonlinear phase noise. - Christian Häger; Alexandre Graell i Amat; Alex Alvarado; Erik Agrell (GLOBECOM, 2012)

General BER expression for one-dimensional constellations. - Mikhail Ivanov; Fredrik Brannstrom; Alex Alvarado; Erik Agrell (GLOBECOM, 2012)

Achieving the Shannon limit with probabilistically shaped BICM. - Erik Agrell; Alex Alvarado (ISIT, 2012)

On the equivalence of TCM encoders. - Alex Alvarado; Alexandre Graell i Amat; Fredrik Brännström; Erik Agrell (ISIT, 2012)

An efficient algorithm to calculate BICM capacity. - Georg Böcherer; Fabian Altenbach; Alex Alvarado; Steven Corroy; Rudolf Mathar (ISIT, 2012)

First-order asymptotics of the BICM mutual information: Uniform vs. nonuniform distributions. - Erik Agrell; Alex Alvarado (ITA, 2012)

High-SNR asymptotics of mutual information for discrete constellations. - Alex Alvarado; Fredrik Brannstrom; Erik Agrell; Tobias Koch 001 (ISIT, 2013)

On Optimal TCM Encoders. - Alex Alvarado; Alexandre Graell i Amat; Fredrik Brannstrom; Erik Agrell (IEEE Trans. Commun., 2013)

Design of APSK Constellations for Coherent Optical Channels with Nonlinear Phase Noise. - Christian Häger; Alexandre Graell i Amat; Alex Alvarado; Erik Agrell (IEEE Trans. Commun., 2013)

On the Exact BER of Bit-Wise Demodulators for One-Dimensional Constellations. - Mikhail Ivanov; Fredrik Brannstrom; Alex Alvarado; Erik Agrell (IEEE Trans. Commun., 2013)

Signal Shaping for BICM at Low SNR. - Erik Agrell; Alex Alvarado (IEEE Trans. Inf. Theory, 2013)

Comparison of terminated and tailbiting spatially coupled LDPC codes with optimized bit mapping for PM-64-QAM. - Christian Häger; Alexandre Graell i Amat; Fredrik Brannstrom; Alex Alvarado; Erik Agrell (ECOC, 2014)

Optimized bit mappings for spatially coupled LDPC codes over parallel binary erasure channels. - Christian Häger; Alexandre Graell i Amat; Alex Alvarado; Fredrik Brannstrom; Erik Agrell (ICC, 2014)

Achievable rates for four-dimensional coded modulation with a bit-wise receiver. - Alex Alvarado; Erik Agrell (OFC, 2014)

Capacity of a Nonlinear Optical Channel with Finite Memory. - Erik Agrell; Alex Alvarado; Giuseppe Durisi; Magnus Karlsson 001 (CoRR, 2014)

Four-Dimensional Coded Modulation with Bit-wise Decoders for Future Optical Communications. - Alex Alvarado; Erik Agrell (CoRR, 2014)

Improving Soft FEC Performance for Higher-Order Modulations by Bit Mapper Optimization. - Christian Häger; Alexandre Graell i Amat; Fredrik Brännström; Alex Alvarado; Erik Agrell (CoRR, 2014)

Terminated and Tailbiting Spatially Coupled Codes with Optimized Bit Mappings for Spectrally Efficient Fiber-Optical Systems. - Christian Häger; Alexandre Graell i Amat; Fredrik Brännström; Alex Alvarado; Erik Agrell (CoRR, 2014)

A Simple Approximation for the Bit-Interleaved Coded Modulation Capacity. - Alex Alvarado; Fredrik Brannstrom; Erik Agrell (IEEE Commun. Lett., 2014)

High-SNR Asymptotics of Mutual Information for Discrete Constellations With Applications to BICM. - Alex Alvarado; Fredrik Brannstrom; Erik Agrell; Tobias Koch 001 (IEEE Trans. Inf. Theory, 2014)

On the Asymptotic Performance of Bit-Wise Decoders for Coded Modulation. - Mikhail Ivanov; Alex Alvarado; Fredrik Brannstrom; Erik Agrell (IEEE Trans. Inf. Theory, 2014)

Optimum detection in presence of nonlinear distortions with memory. - Gabriele Liga; Alex Alvarado; Erik Agrell; Marco Secondini; Robert I. Killey; Polina Bayvel (ECOC, 2015)

Modulation order and code rate optimisation for digital coherent transceivers using generalised mutual information. - Robert Maher; Alex Alvarado; Domaniç Lavery; Polina Bayvel (ECOC, 2015)

Detection of a 1 Tb/s superchannel with a single coherent receiver. - David S. Millar; Robert Maher; Domaniç Lavery; Toshiaki Koike-Akino; Milutin Pajovic; Alex Alvarado; Milen Paskov; Keisuke Kojima; Kieran Parsons; Benn C. Thomsen; Seb J. Savory; Polina Bayvel (ECOC, 2015)

Experimental demonstration of multi-pilot aided carrier phase estimation for DP-64QAM and DP-256QAM. - Milutin Pajovic; David S. Millar; Toshiaki Koike-Akino; Robert Maher; Domaniç Lavery; Alex Alvarado; Milen Paskov; Keisuke Kojima; Kieran Parsons; Benn C. Thomsen; Seb J. Savory; Polina Bayvel (ECOC, 2015)

Improved information rates for bit-interleaved coded modulation. - Alfonso Martinez; Li Peng 001; Alex Alvarado; Albert Guillen i Fabregas (ISIT, 2015)

A lower bound on the per soliton capacity of the nonlinear optical fibre channel. - Nikita A. Shevchenko; Jaroslaw E. Prilepsky; Stanislav A. Derevyanko; Alex Alvarado; Polina Bayvel; Sergei K. Turitsyn (ITW Fall, 2015)

LDPC codes for optical channels: Is the "FEC limit" a good predictor of post-FEC BER? - Alex Alvarado; Erik Agrell; Domaniç Lavery; Polina Bayvel (OFC, 2015)

On optimal modulation and FEC overhead for future optical networks. - Alex Alvarado; David J. Ives; Seb J. Savory; Polina Bayvel (OFC, 2015)

LDPC coded modulation with probabilistic shaping for optical fiber systems. - Tobias Fehenberger; Georg Bocherer; Alex Alvarado; Norbert Hanik (OFC, 2015)

On parameter optimization for staircase codes. - Christian Häger; Alexandre Graell i Amat; Henry D. Pfister; Alex Alvarado; Fredrik Brannstrom; Erik Agrell (OFC, 2015)

Reach enhancement of 100% for a DP-64QAM super-channel using MC-DBP. - Robert Maher; Domaniç Lavery; David S. Millar; Alex Alvarado; Kieran Parsons; Robert I. Killey; Polina Bayvel (OFC, 2015)

Transceiver-limited high spectral efficiency Nyquist-WDM systems. - David S. Millar; Robert Maher; Domaniç Lavery; Toshiaki Koike-Akino; Alex Alvarado; Milen Paskov; Keisuke Kojima; Kieran Parsons; Benn C. Thomsen; Seb J. Savory; Polina Bayvel (OFC, 2015)

Replacing the Soft FEC Limit Paradigm in the Design of Optical Communication Systems. - Alex Alvarado; Erik Agrell; Domaniç Lavery; Robert Maher; Polina Bayvel (CoRR, 2015)

On the Impact of Optimal Modulation and FEC Overhead on Future Optical Networks. - Alex Alvarado; David J. Ives; Seb J. Savory; Polina Bayvel (CoRR, 2015)

On Achievable Rates for Long-Haul Fiber-Optic Communications. - Tobias Fehenberger; Alex Alvarado; Polina Bayvel; Norbert Hanik (CoRR, 2015)

Demonstration of Sensitivity Gains by Probabilistic Shaping for Optical Communication Systems. - Tobias Fehenberger; Domaniç Lavery; Robert Maher; Alex Alvarado; Polina Bayvel; Norbert Hanik (CoRR, 2015)

The Benefit of Split Nonlinearity Compensation for Optical Fiber Communications. - Domaniç Lavery; David J. Ives; Gabriele Liga; Alex Alvarado; Seb J. Savory; Polina Bayvel (CoRR, 2015)

Why compensating fibre nonlinearity will never meet capacity demands. - Domaniç Lavery; Robert Maher; David S. Millar; Alex Alvarado; Seb J. Savory; Polina Bayvel (CoRR, 2015)

Impact of amplifier noise figure on network throughput. - Alex Alvarado; David J. Ives; Seb J. Savory; Polina Bayvel (OFC, 2016)

Improved achievable information rates by optimized four-dimensional demappers in optical transmission experiments. - Tobias Fehenberger; Tobias A. Eriksson; Alex Alvarado; Magnus Karlsson 001; Erik Agrell; Norbert Hanik (OFC, 2016)

Algorithms and reach enhancement for ultra high bandwidth transceivers. - Robert Maher; Lídia Galdino; Daniel J. Elson; Domaniç Lavery; Alex Alvarado; Polina Bayvel (OFC, 2016)

Predicting the performance of nonbinary forward error correction in optical transmission experiments. - Laurent Schmalen; Alex Alvarado; Rafael Rios-Müller (OFC, 2016)

On Probabilistic Shaping of Quadrature Amplitude Modulation for the Nonlinear Fiber Channel. - Tobias Fehenberger; Alex Alvarado; Georg Böcherer; Norbert Hanik (CoRR, 2016)

Information Rates of Next-Generation Long-Haul Optical Fiber Systems Using Coded Modulation. - Gabriele Liga; Alex Alvarado; Erik Agrell; Polina Bayvel (CoRR, 2016)

Performance Prediction of Nonbinary Forward Error Correction in Optical Transmission Experiments. - Laurent Schmalen; Alex Alvarado; Rafael Rios-Müller (CoRR, 2016)

A Lower Bound on the Capacity of the Noncentral Chi Channel with Applications to Soliton Amplitude Modulation. - Nikita A. Shevchenko; Stanislav A. Derevyanko; Jaroslaw E. Prilepsky; Alex Alvarado; Polina Bayvel; Sergei K. Turitsyn (CoRR, 2016)

An Experimental Comparison of Coded Modulation Strategies for 100 Gbit/s Transceivers. - Eric Sillekens; Alex Alvarado; Chigo Okonkwo; Benn C. Thomsen (CoRR, 2016)

On the Information Loss of the Max-Log Approximation in BICM Systems. - Mikhail Ivanov; Christian Häger; Fredrik Brannstrom; Alexandre Graell i Amat; Alex Alvarado; Erik Agrell (IEEE Trans. Inf. Theory, 2016)

Nonlinearity Compensation and Information Rates in Fully-Loaded C-band Optical Fibre Transmission Systems. - Tianhua Xu; Nikita A. Shevchenko; Boris Karanov; Domaniç Lavery; Lídia Galdino; Alex Alvarado; Robert I. Killey; Polina Bayvel (ECOC, 2017)

Designing adaptive coded modulation for optical networks via achievable information rates. - Alex Alvarado; David J. Ives; Seb J. Savory (ICTON, 2017)

Information rates and post-FEC BER prediction in optical fiber communications. - Alex Alvarado (OFC, 2017)

On the impact of probabilistic shaping on SNR and information rates in multi-span WDM systems. - Tobias Fehenberger; Alex Alvarado; Georg Bocherer; Norbert Hanik (OFC, 2017)

Achievable information rates of square MQAM modulation formats after carrier phase estimation. - Milen Paskov; Domaniç Lavery; Alex Alvarado; Polina Bayvel (OFC, 2017)

Spatial pulse position modulation for multi-mode transmission systems. - John van Weerdenburg; Alex Alvarado; Juan Carlos Alvarado-Zacarias; Jose Enrique Antonio-Lopez; J. H. Bonarius; D. Molin; Marianne Bigot-Astruc; Antonius M. J. Koonen; Adrian Amezcua Correa; Pierre Sillard; Rodrigo Amezcua Correa; Chigo M. Okonkwo (OFC, 2017)

Nonlinear frequency-division multiplexing in the focusing regime. - Xianhe Yangzhang; Mansoor I. Yousefi; Alex Alvarado; Domaniç Lavery; Polina Bayvel (OFC, 2017)

Achievable information rates estimates in optically-amplified transmission systems using nonlinearity compensation and probabilistic shaping. - Daniel Semrau; Tianhua Xu; Nikita A. Shevchenko; Milen Paskov; Alex Alvarado; Robert I. Killey; Polina Bayvel (CoRR, 2017)

Achievable Information Rates for Fiber Optics: Applications and Computations. - Alex Alvarado; Tobias Fehenberger; Bin Chen 006; Frans M. J. Willems (CoRR, 2017)

Achievable Information Rate Losses for High Order Modulation and Hard-Decision Forward Error Correction. - Alex Alvarado; Yi Lei; David S. Millar (ECOC, 2018)

Increasing Achievable Information Rates via Geometric Shaping. - Bin Chen 006; Chigo Okonkwo; Hartmut Hafermann; Alex Alvarado (ECOC, 2018)

Capacity Estimates of Single Soliton Communication. - Iman Tavakkolnia; Alex Alvarado; Majid Safari (ECOC, 2018)

A Reduced-Complexity Linear Precoding Strategy for Massive MIMO Base Stations. - Amirashkan Farsaei; Frans M. J. Willems; Alex Alvarado; Ulf Gustavsson (ICT, 2018)

Geometrically-shaped 64-point Constellations via Achievable Information Rates. - Bin Chen 006; Chigo Okonkwo; Domaniç Lavery; Alex Alvarado (ICTON, 2018)

Decoding Staircase Codes with Marked Bits. - Yi Lei; Alex Alvarado; Bin Chen 006; Xiong Deng; Zizheng Cao; Jianqiang Li 003; Kun Xu (ISTC, 2018)

A Simple Nonlinearity-Tailored Probabilistic Shaping Distribution for Square QAM. - Eric Sillekens; Daniel Semrau; Gabriele Liga; Nikita A. Shevchenko; Zhe Li; Alex Alvarado; Polina Bayvel; Robert I. Killey; Domaniç Lavery (OFC, 2018)

Capacity Lower Bounds of the Noncentral Chi-Channel With Applications to Soliton Amplitude Modulation. - Nikita A. Shevchenko; Stanislav A. Derevyanko; Jaroslaw E. Prilepsky; Alex Alvarado; Polina Bayvel; Sergei K. Turitsyn (IEEE Trans. Commun., 2018)

Asymptotic Comparison of ML and MAP Detectors for Multidimensional Constellations. - Alex Alvarado; Erik Agrell; Fredrik Brannstrom (IEEE Trans. Inf. Theory, 2018)

Fiber Nonlinearity Mitigation via the Parzen Window Classifier for Dispersion Managed and Unmanaged Links. - Abdelkerim Amari; Xiang Lin; Octavia A. Dobre; Ramachandran Venkatesan; Alex Alvarado (ICTON, 2019)

Regular perturbation for the weak-dispersion regime. - Vinícius Oliari; Erik Agrell; Alex Alvarado (ICTON, 2019)

First Experimental Verification of Improved Decoding of Staircase Codes using Marked Bits. - Bin Chen 006; Yi Lei; Sjoerd van der Heide; John van Weerdenburg; Alex Alvarado; Chigo Okonkwo (OFC, 2019)

Improving HD-FEC decoding via bit marking. - Alex Alvarado; Gabriele Liga; Yi Lei; Bin Chen 006; Alexios Balatsoukas-Stimming (OECC/PSC, 2019)

First Experimental Demonstration of Probabilistic Enumerative Sphere Shaping in Optical Fiber Communications. - Sebastiaan Goossens; Sjoerd van der Heide; Menno van den Hout; Abdelkerim Amari; Yunus Can Gültekin; Olga Vassilieva; Inwoong Kim; Tadashi Ikeuchi; Frans M. J. Willems; Alex Alvarado; Chigo Okonkwo (OECC/PSC, 2019)

11, 700 km Transmission at 4.8 bit/4D-sym via Four-dimensional Geometrically-shaped Polarization-Ring-Switching Modulation. - Sjoerd van der Heide; Bin Chen 006; Menno van den Hout; Gabriele Liga; Ton Koonen; Hartmut Hafermann; Alex Alvarado; Chigo Okonkwo (OECC/PSC, 2019)

Polarization-ring-switching for nonlinearity-tolerant geometrically-shaped four-dimensional formats maximizing generalized mutual information. - Bin Chen 006; Chigo Okonkwo; Hartmut Hafermann; Alex Alvarado (CoRR, 2019)

A Machine Learning-Based Detection Technique for Optical Fiber Nonlinearity Mitigation. - Abdelkerim Amari; Xiang Lin; Octavia A. Dobre; Ramachandran Venkatesan; Alex Alvarado (CoRR, 2019)

Introducing Enumerative Sphere Shaping for Optical Communication Systems with Short Blocklengths. - Abdelkerim Amari; Sebastiaan Goossens; Yunus Can Gultekin; Olga Vassilieva; Inwoong Kim; Tadashi Ikeuchi; Chigo Okonkwo; Frans M. J. Willems; Alex Alvarado (CoRR, 2019)

Revisiting Multi-Step Nonlinearity Compensation with Machine Learning. - Christian Häger; Henry D. Pfister; Rick M. Bütler; Gabriele Liga; Alex Alvarado (CoRR, 2019)

A novel soft-aided bit-marking decoder for product codes. - Gabriele Liga; Alireza Sheikh; Alex Alvarado (CoRR, 2019)

Enumerative Sphere Shaping for Rate Adaptation and Reach Increase in WDM Transmission Systems. - Abdelkerim Amari; Sebastiaan Goossens; Yunus Can Gultekin; Olga Vassilieva; Inwoong Kim; Tadashi Ikeuchi; Chigo Okonkwo; Frans M. J. Willems; Alex Alvarado (CoRR, 2019)

Analysis and Optimisation of Distribution Matching for the Nonlinear Fibre Channel. - Tobias Fehenberger; Alex Alvarado (CoRR, 2019)

On Parameter Optimization of Product Codes for Iterative Bounded Distance Decoding with Scaled Reliability. - Alireza Sheikh; Alexandre Graell i Amat; Gianluigi Liva; Alex Alvarado (CoRR, 2019)

Post-FEC BER Prediction for Bit-Interleaved Coded Modulation with Probabilistic Shaping. - Tsuyoshi Yoshida; Alex Alvarado; Magnus Karlsson 001; Erik Agrell (CoRR, 2019)

30% Reach Increase via Low-complexity Hybrid HD/SD FEC and Nonlinearity-tolerant 4D Modulation. - Gabriele Liga; Bin Chen 006; Sjoerd van der Heide; Alireza Sheikh; Menno van den Hout; Chigo Okonkwo; Alex Alvarado (CoRR, 2019)

An Improved Dropping Algorithm for Line-of-Sight Massive MIMO With Max-Min Power Control. - Amirashkan Farsaei; Alex Alvarado; Frans M. J. Willems; Ulf Gustavsson (IEEE Commun. Lett., 2019)

An Improved Dropping Algorithm for Line-of-Sight Massive MIMO With Tomlinson-Harashima Precoding. - Amirashkan Farsaei; Alex Alvarado; Frans M. J. Willems; Ulf Gustavsson (IEEE Commun. Lett., 2019)

Improved Decoding of Staircase Codes: The Soft-Aided Bit-Marking (SABM) Algorithm. - Yi Lei; Bin Chen 006; Gabriele Liga; Xiong Deng; Zizheng Cao; Jianqiang Li 003; Kun Xu; Alex Alvarado (IEEE Trans. Commun., 2019)

Nonlinear Interference Analysis of Probabilistic Shaping vs. 4D Geometrically Shaped Formats. - Bin Chen 006; Chigo Okonkwo; Alex Alvarado (ECOC, 2020)

Challenges in Coding, DSP and Parallel Operation of Quantum Key Distribution and Coherent Data Transmission. - Tobias A. Eriksson; Ruben S. Luís; Georg Rademacher; Benjamin J. Puttnam; Kadir Gümüs; Laurent Schmalen; Alex Alvarado; Hideaki Furukawa; Naoya Wada; Takuya Hirano; Masahide Sasaki; Masahiro Takeoka (ECOC, 2020)

End-to-End Learning in Optical Fiber Communications: Experimental Demonstration and Future Trends. - Boris Karanov; Vinícius Oliari; Mathieu Chagnon; Gabriele Liga; Alex Alvarado; Vahid Aref; Domaniç Lavery; Polina Bayvel; Laurent Schmalen (ECOC, 2020)

Logarithmic Perturbation Models in the Weak-Dispersion Regime with Applications to Passive Optical Networks. - Vinícius Oliari; Erik Agrell; Alex Alvarado (ECOC, 2020)

Digital Self-Coherent Continuous Variable Quantum Key Distribution System. - Tobias A. Eriksson; Ruben S. Luís; Kadir Gümüs; Georg Rademacher; Benjamin J. Puttnam; Hideaki Furukawa; Naoya Wada; Yoshinari Awaji; Alex Alvarado; Masahide Sasaki; Masahiro Takeoka (OFC, 2020)

End-to-End Learning of Geometrical Shaping Maximizing Generalized Mutual Information. - Kadir Gümüs; Alex Alvarado; Bin Chen 006; Christian Häger; Erik Agrell (OFC, 2020)

Model-Based Machine Learning for Joint Digital Backpropagation and PMD Compensation. - Christian Häger; Henry D. Pfister; Rick M. Bütler; Gabriele Liga; Alex Alvarado (OFC, 2020)

Achievable Information Rates for Probabilistic Amplitude Shaping: A Minimum-Randomness Approach via Random Sign-Coding Arguments. - Yunus Can Gültekin; Alex Alvarado; Frans M. J. Willems (CoRR, 2020)

Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication. - Bin Chen 006; Alex Alvarado; Sjoerd van der Heide; Menno van den Hout; Hartmut Hafermann; Chigo Okonkwo (CoRR, 2020)

Refined Reliability Combining for Binary Message Passing Decoding of Product Codes. - Alireza Sheikh; Alexandre Graell i Amat; Gianluigi Liva; Alex Alvarado (CoRR, 2020)

Novel High-Throughput Decoding Algorithms for Product and Staircase Codes based on Error-and-Erasure Decoding. - Alireza Sheikh; Alexandre Graell i Amat; Alex Alvarado (CoRR, 2020)

Comparison of Short Blocklength Sphere Shaping and Nonlinearity Compensation in WDM Systems. - Abdelkerim Amari; Lutz Lampe; O. S. Sunish Kumar; Yunus Can Gultekin; Alex Alvarado (CoRR, 2020)

Hard-Decision Coded Modulation for High-Throughput Short-Reach Optical Interconnect. - Bin Chen 006; Yi Lei; Gabriele Liga; Chigo Okonkwo; Alex Alvarado (Entropy, 2020)

On the Capacity of Amplitude Modulated Soliton Communication over Long Haul Fibers. - Yu Chen 044; Iman Tavakkolnia; Alex Alvarado; Majid Safari (Entropy, 2020)

Achievable Information Rates for Probabilistic Amplitude Shaping: An Alternative Approach via Random Sign-Coding Arguments. - Yunus Can Gültekin; Alex Alvarado; Frans M. J. Willems (Entropy, 2020)

Probabilistic Shaping for Finite Blocklengths: Distribution Matching and Sphere Shaping. - Yunus Can Gültekin; Tobias Fehenberger; Alex Alvarado; Frans M. J. Willems (Entropy, 2020)

Extending Fibre Nonlinear Interference Power Modelling to Account for General Dual-Polarisation 4D Modulation Formats. - Gabriele Liga; Astrid Barreiro; Hami Rabbani; Alex Alvarado (Entropy, 2020)

On Product Codes With Probabilistic Amplitude Shaping for High-Throughput Fiber-Optic Systems. - Alireza Sheikh; Alexandre Graell i Amat; Alex Alvarado (IEEE Commun. Lett., 2020)

On Kurtosis-limited Enumerative Sphere Shaping for Reach Increase in Single-span Systems. - Yunus Can Gültekin; Alex Alvarado; Olga Vassilieva; Inwoong Kim; Paparao Palacharla; Chigo M. Okonkwo; Frans M. J. Willems (ECOC, 2021)

Exponentially-Weighted Energy Dispersion Index for the Nonlinear Interference Analysis of Finite-Blocklength Shaping. - Kaiquan Wu; Gabriele Liga; Yunus Can Gültekin; Alex Alvarado (ECOC, 2021)

Radar Sensing with OTFS: Embracing ISI and ICI to Surpass the Ambiguity Barrier. - Musa Furkan Keskin; Henk Wymeersch; Alex Alvarado (ICC Workshops, 2021)

On Parameter Optimization and Reach Enhancement for the Improved Soft-Aided Staircase Decoder. - Yi Lei; Bin Chen 006; Gabriele Liga; Alex Alvarado (ISTC, 2021)

On Cloud Radio Access Networks With Cascade Oblivious Relaying. - Mehrangiz Ensan; Hamdi Joudeh; Alex Alvarado; Ulf Gustavsson; Frans M. J. Willems (ITW, 2021)

Distance-Agnostic Auto-Encoders for Short Reach Fiber Communications. - Boris Karanov; Laurent Schmalen; Alex Alvarado (OFC, 2021)

Modeling of Nonlinear Interference Power for Dual-Polarization 4D Formats. - Gabriele Liga; Bin Chen 006; Astrid Barreiro; Alex Alvarado (OFC, 2021)

DropNet: An Improved Dropping Algorithm Based on Neural Networks for Line-of-Sight Massive MIMO. - Amirashkan Farsaei; Alireza Sheikh; Ulf Gustavsson; Alex Alvarado; Frans M. J. Willems (IEEE Access, 2021)

Performance Prediction Recipes for Optical Links. - Erik Agrell; Marco Secondini; Alex Alvarado; Tsuyoshi Yoshida (CoRR, 2021)

Temporal Energy Analysis of Symbol Sequences for Fiber Nonlinear Interference Modelling via Energy Dispersion Index. - Kaiquan Wu; Gabriele Liga; Alireza Sheikh; Frans M. J. Willems; Alex Alvarado (CoRR, 2021)

A Soft-Aided Staircase Decoder Using Three-Level Channel Reliabilities. - Yi Lei; Bin Chen 006; Gabriele Liga; Alexios Balatsoukas-Stimming; Kaixuan Sun; Alex Alvarado (CoRR, 2021)

A Capacity Region Outer Bound for the Two-User Dispersive Nonlinear Fiber Optical Channel. - Viswanathan Ramachandran 001; Astrid Barreiro; Gabriele Liga; Alex Alvarado (CoRR, 2021)

Orthogonal Time Frequency Space Modulation: A Discrete Zak Transform Approach. - Franz Lampel; Alex Alvarado; Frans M. J. Willems (CoRR, 2021)

Capacity Region Bounds for the K user Dispersive Nonlinear Optical WDM Channel with Peak Power Constraints. - Viswanathan Ramachandran 001; Gabriele Liga; Astrid Barreiro; Alex Alvarado (CoRR, 2021)

Low-Complexity Geometrical Shaping for 4D Modulation Formats via Amplitude Coding. - Bin Chen 006; Wei Ling; Yunus Can Gültekin; Yi Lei; Chigo Okonkwo; Alex Alvarado (CoRR, 2021)

Uniform Linear Arrays With Optimized Inter-Element Spacing for LOS Massive MIMO. - Amirashkan Farsaei; Navid Amani; Rob Maaskant; Ulf Gustavsson; Alex Alvarado; Frans M. J. Willems (IEEE Commun. Lett., 2021)

An Improved Successive Filter-Based Dropping Algorithm for Massive MIMO With Max-Min Power Control. - Amirashkan Farsaei; Ulf Gustavsson; Alex Alvarado; Frans M. J. Willems (IEEE Commun. Lett., 2021)

A Low-Complexity Hybrid Linear and Nonlinear Precoder for Line-Of-Sight Massive MIMO With Max-Min Power Control. - Amirashkan Farsaei; Ulf Gustavsson; Alex Alvarado; Frans M. J. Willems (IEEE Trans. Wirel. Commun., 2021)

Band-ESS: Streaming Enumerative Coding with Applications to Probabilistic Shaping. - Yunus Can Gültekin; Frans M. J. Willems; Alex Alvarado (GLOBECOM, 2022)

On OTFS using the Discrete Zak Transform. - Franz Lampel; Alex Alvarado; Frans M. J. Willems (ICC Workshops, 2022)

Log-CCDM: Distribution Matching via Multiplication-free Arithmetic Coding. - Yunus Can Gültekin; Frans M. J. Willems; Alex Alvarado (ISIT, 2022)

Shaped Four-Dimensional Modulation Formats for Optical Fiber Communication Systems. - Bin Chen 006; Gabriele Liga; Yi Lei; Wei Ling; Zhengyan Huan; Xuwei Xue; Alex Alvarado (OFC, 2022)

Mitigating Nonlinear Interference by Limiting Energy Variations in Sphere Shaping. - Yunus Can Gültekin; Alex Alvarado; Olga Vassilieva; Inwoong Kim; Paparao Palacharla; Chigo M. Okonkwo; Frans M. J. Willems (OFC, 2022)

Model-aided Geometrical Shaping of Dual-polarization 4D Formats in the Nonlinear Fiber Channel. - Gabriele Liga; Bin Chen 006; Alex Alvarado (OFC, 2022)

Capacity Region Bounds for K-User Optical WDM Channels with Peak Power Constraints. - Viswanathan Ramachandran 001; Gabriele Liga; Astrid Barreiro; Alex Alvarado (OFC, 2022)

On Optimum Enumerative Sphere Shaping Blocklength at Different Symbol Rates for the Nonlinear Fiber Channel. - Yunus Can Gültekin; Olga Vassilieva; Inwoong Kim; Paparao Palacharla; Chigo Okonkwo; Alex Alvarado (OECC/PSC, 2022)

Capacity Bounds for Optical WDM Channels with Peak Power Constraints. - Viswanathan Ramachandran 001; Gabriele Liga; Astrid Barreiro; Alex Alvarado (CoRR, 2022)

Extension and Validation of 4D Model for Improving the Accuracy of Modulation-Dependent Nonlinear Interference. - Zhiwei Liang; Bin Chen 006; Yi Lei; Gabriele Liga; Alex Alvarado (CoRR, 2022)

Reducing the Error Floor of the Sign-Preserving Min-Sum LDPC Decoder via Message Weighting of Low-Degree Variable Nodes. - Lotte Paulissen; Alex Alvarado; Kaiquan Wu; Alexios Balatsoukas-Stimming (CoRR, 2022)

Geometrically-Shaped Multi-Dimensional Modulation Formats in Coherent Optical Transmission Systems. - Bin Chen 006; Yi Lei; Gabriele Liga; Zhiwei Liang; Wei Ling; Xuwei Xue; Alex Alvarado (CoRR, 2022)

Pulses With Minimum Residual Intersymbol Interference for Faster Than Nyquist Signaling. - Youssef Jaffal; Alex Alvarado (IEEE Commun. Lett., 2022)

Orthogonal Time Frequency Space Modulation Based on the Discrete Zak Transform. - Franz Lampel; Hamdi Joudeh; Alex Alvarado; Frans M. J. Willems (Entropy, 2022)

Geometric Constellation Shaping in Elastic Optical Networks: Performance Analysis on Resource Allocation. - Y. Christiansen; Mirko Zitkovich; Danilo Bórquez-Paredes; Alejandra Beghelli; Alex Alvarado; Gabriel Saavedra (ONDM, 2023)

Analytical Model of Nonlinear Fiber Propagation for General Dual-Polarization Four-Dimensional Modulation Format. - Zhiwei Liang; Bin Chen 006; Yi Lei; Gabriele Liga; Alex Alvarado (CoRR, 2023)

On the Performance of Multidimensional Constellation Shaping for Linear and Nonlinear Optical Fiber Channel. - Bin Chen 006; Zhiwei Liang; Shen Li 006; Yi Lei; Gabriele Liga; Alex Alvarado (CoRR, 2023)

A Sliding-Window LMMSE Turbo Equalization Scheme for OTFS. - Franz Lampel; Alex Alvarado; Frans M. J. Willems (IEEE Commun. Lett., 2023)

A Simplified FSO Channel Model with Weak Turbulence and Pointing Errors. - Carmen Álvarez-Roa; Yunus Can Gültekin; Kaiquan Wu; C. Willem Korevaar; Alex Alvarado (ICTON, 2024)

On the Robustness of Deep Learning-Aided Symbol Detectors to Varying Conditions and Imperfect Channel Knowledge. - Chin-Hung Chen; Boris Karanov; Wim J. van Houtum; Wu Yan 023; Alex Young; Alex Alvarado (WCNC, 2024)

On the Capacity of Correlated MIMO Phase-Noise Channels: An Electro-Optic Frequency Comb Example. - Mohammad Farsi 003; Hamdi Joudeh; Gabriele Liga; Alex Alvarado; Magnus Karlsson 001; Erik Agrell (CoRR, 2024)

On the Design and Performance of Machine Learning Based Error Correcting Decoders. - Yuncheng Yuan; Péter Scheepers; Lydia Tasiou; Yunus Can Gültekin; Federico Corradi; Alex Alvarado (CoRR, 2024)

Modified Baum-Welch Algorithm for Joint Blind Channel Estimation and Turbo Equalization. - Chin-Hung Chen; Boris Karanov; Ivana Nikoloska; Wim J. van Houtum; Yan Wu 023; Alex Alvarado (CoRR, 2024)

Turbo Receiver Design with Joint Detection and Demapping for Coded Differential BPSK in Bursty Impulsive Noise Channels. - Chin-Hung Chen; Boris Karanov; Wim van Houtom; Yan Wu 023; Alex Alvarado (CoRR, 2024)

Integrated Sensing and Communications With MIMO-OTFS: ISI/ICI Exploitation and Delay-Doppler Multiplexing. - Musa Furkan Keskin; Carina Marcus; Olof Eriksson; Alex Alvarado; Joerg Widmer; Henk Wymeersch (IEEE Trans. Wirel. Commun., 2024)

Nonlinearity Cancellation Based on Optimized First Order Perturbative Kernels. - Alex Alvarado; Astrid Barreiro; Gabriele Liga (OFC, 2025)

Blind Equalization in Dynamic PMD Channels Using Variational Autoencoders with LSTM. - José Nupsilonñez-Kasaneva; Boris Karanov; Alex Alvarado; Gabriele Liga (OFC, 2025)

Iterative Logistic Weight Based Chase Decoder for Open Forward Error Correction. - Yifei Shen; Wenqing Song; Ludovic Damien Blanc; Yuqing Ren; Alexios Balatsoukas-Stimming; Alex Alvarado; Andreas Burg 001 (OFC, 2025)

On Geometric Shaping for 400 Gbps IM-DD Links with Laser Intensity Noise. - Felipe Villenas; Kaiquan Wu; Yunus Can Gültekin; Jamal Riani; Alex Alvarado (OFC, 2025)

Accounting for Temporal Energy Correlations in the Enhanced Gaussian Noise Model. - Kaiquan Wu; Gabriele Liga; Marco Secondini; Alex Alvarado (OFC, 2025)

On the Optimality of Single-label and Multi-label Neural Network Decoders. - Yunus Can Gültekin; Péter Scheepers; Yuncheng Yuan; Federico Corradi; Alex Alvarado (CoRR, 2025)

Robust Blind Channel Estimation for Bursty Impulsive Noise with a Constrained EM Approach. - Chin-Hung Chen; Ivana Nikoloska; Wim J. van Houtum; Yan Wu 023; Boris Karanov; Alex Alvarado (CoRR, 2025)

Guest Editorial: Next-Generation Optical Communications and Networking. - Alex Alvarado; Konrad Banaszek; Junho Cho; Marija Furdek; Marco Secondini; Laurent Schmalen; Elaine Wong 001 (IEEE J. Sel. Areas Commun., 2025)

Lowering Error Floors for Hard Decision Decoding of OFEC Code. - Jasper Lagendijk; Yunus Can Gültekin; Alexios Balatsoukas-Stimming; Gabriele Liga; Alex Alvarado (CoRR, 2025)

On the Capacity of Correlated Phase-Noise Channels: An Electro-Optic Frequency Comb Example. - Mohammad Farsi 001; Hamdi Joudeh; Gabriele Liga; Alex Alvarado; Magnus Karlsson 001; Erik Agrell (IEEE Trans. Inf. Theory, 2025)