Alex Alvarado
Orcid: 0000-0002-2172-3051
According to our database1,
Alex Alvarado
authored at least 167 papers
between 2003 and 2024.
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Bibliography
2024
Integrated Sensing and Communications With MIMO-OTFS: ISI/ICI Exploitation and Delay-Doppler Multiplexing.
IEEE Trans. Wirel. Commun., August, 2024
On the Capacity of Correlated MIMO Phase-Noise Channels: An Electro-Optic Frequency Comb Example.
CoRR, 2024
On the Robustness of Deep Learning-Aided Symbol Detectors to Varying Conditions and Imperfect Channel Knowledge.
Proceedings of the IEEE Wireless Communications and Networking Conference, 2024
Proceedings of the 24th International Conference on Transparent Optical Networks, 2024
2023
IEEE Commun. Lett., December, 2023
On the Performance of Multidimensional Constellation Shaping for Linear and Nonlinear Optical Fiber Channel.
CoRR, 2023
Analytical Model of Nonlinear Fiber Propagation for General Dual-Polarization Four-Dimensional Modulation Format.
CoRR, 2023
2022
Entropy, December, 2022
Pulses With Minimum Residual Intersymbol Interference for Faster Than Nyquist Signaling.
IEEE Commun. Lett., 2022
Geometrically-Shaped Multi-Dimensional Modulation Formats in Coherent Optical Transmission Systems.
CoRR, 2022
Reducing the Error Floor of the Sign-Preserving Min-Sum LDPC Decoder via Message Weighting of Low-Degree Variable Nodes.
CoRR, 2022
Extension and Validation of 4D Model for Improving the Accuracy of Modulation-Dependent Nonlinear Interference.
CoRR, 2022
On Optimum Enumerative Sphere Shaping Blocklength at Different Symbol Rates for the Nonlinear Fiber Channel.
Proceedings of the 2022 27th OptoElectronics and Communications Conference (OECC) and 2022 International Conference on Photonics in Switching and Computing (PSC), 2022
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022
Model-aided Geometrical Shaping of Dual-polarization 4D Formats in the Nonlinear Fiber Channel.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022
Proceedings of the IEEE International Symposium on Information Theory, 2022
Proceedings of the 2022 IEEE International Conference on Communications Workshops, 2022
Proceedings of the IEEE Global Communications Conference, 2022
2021
A Low-Complexity Hybrid Linear and Nonlinear Precoder for Line-Of-Sight Massive MIMO With Max-Min Power Control.
IEEE Trans. Wirel. Commun., 2021
An Improved Successive Filter-Based Dropping Algorithm for Massive MIMO With Max-Min Power Control.
IEEE Commun. Lett., 2021
IEEE Commun. Lett., 2021
CoRR, 2021
Capacity Region Bounds for the K user Dispersive Nonlinear Optical WDM Channel with Peak Power Constraints.
CoRR, 2021
CoRR, 2021
A Capacity Region Outer Bound for the Two-User Dispersive Nonlinear Fiber Optical Channel.
CoRR, 2021
Temporal Energy Analysis of Symbol Sequences for Fiber Nonlinear Interference Modelling via Energy Dispersion Index.
CoRR, 2021
DropNet: An Improved Dropping Algorithm Based on Neural Networks for Line-of-Sight Massive MIMO.
IEEE Access, 2021
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2021
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2021
Proceedings of the IEEE Information Theory Workshop, 2021
On Parameter Optimization and Reach Enhancement for the Improved Soft-Aided Staircase Decoder.
Proceedings of the 11th International Symposium on Topics in Coding, 2021
Proceedings of the IEEE International Conference on Communications Workshops, 2021
Exponentially-Weighted Energy Dispersion Index for the Nonlinear Interference Analysis of Finite-Blocklength Shaping.
Proceedings of the European Conference on Optical Communication, 2021
On Kurtosis-limited Enumerative Sphere Shaping for Reach Increase in Single-span Systems.
Proceedings of the European Conference on Optical Communication, 2021
2020
On Product Codes With Probabilistic Amplitude Shaping for High-Throughput Fiber-Optic Systems.
IEEE Commun. Lett., 2020
Extending Fibre Nonlinear Interference Power Modelling to Account for General Dual-Polarisation 4D Modulation Formats.
Entropy, 2020
Probabilistic Shaping for Finite Blocklengths: Distribution Matching and Sphere Shaping.
Entropy, 2020
Achievable Information Rates for Probabilistic Amplitude Shaping: An Alternative Approach via Random Sign-Coding Arguments.
Entropy, 2020
Entropy, 2020
Entropy, 2020
Comparison of Short Blocklength Sphere Shaping and Nonlinearity Compensation in WDM Systems.
CoRR, 2020
Novel High-Throughput Decoding Algorithms for Product and Staircase Codes based on Error-and-Erasure Decoding.
CoRR, 2020
CoRR, 2020
Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication.
CoRR, 2020
Achievable Information Rates for Probabilistic Amplitude Shaping: A Minimum-Randomness Approach via Random Sign-Coding Arguments.
CoRR, 2020
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020
End-to-End Learning of Geometrical Shaping Maximizing Generalized Mutual Information.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020
Logarithmic Perturbation Models in the Weak-Dispersion Regime with Applications to Passive Optical Networks.
Proceedings of the European Conference on Optical Communications, 2020
End-to-End Learning in Optical Fiber Communications: Experimental Demonstration and Future Trends.
Proceedings of the European Conference on Optical Communications, 2020
Challenges in Coding, DSP and Parallel Operation of Quantum Key Distribution and Coherent Data Transmission.
Proceedings of the European Conference on Optical Communications, 2020
Nonlinear Interference Analysis of Probabilistic Shaping vs. 4D Geometrically Shaped Formats.
Proceedings of the European Conference on Optical Communications, 2020
2019
IEEE Trans. Commun., 2019
An Improved Dropping Algorithm for Line-of-Sight Massive MIMO With Tomlinson-Harashima Precoding.
IEEE Commun. Lett., 2019
An Improved Dropping Algorithm for Line-of-Sight Massive MIMO With Max-Min Power Control.
IEEE Commun. Lett., 2019
30% Reach Increase via Low-complexity Hybrid HD/SD FEC and Nonlinearity-tolerant 4D Modulation.
CoRR, 2019
Post-FEC BER Prediction for Bit-Interleaved Coded Modulation with Probabilistic Shaping.
CoRR, 2019
On Parameter Optimization of Product Codes for Iterative Bounded Distance Decoding with Scaled Reliability.
CoRR, 2019
CoRR, 2019
Enumerative Sphere Shaping for Rate Adaptation and Reach Increase in WDM Transmission Systems.
CoRR, 2019
Introducing Enumerative Sphere Shaping for Optical Communication Systems with Short Blocklengths.
CoRR, 2019
A Machine Learning-Based Detection Technique for Optical Fiber Nonlinearity Mitigation.
CoRR, 2019
Polarization-ring-switching for nonlinearity-tolerant geometrically-shaped four-dimensional formats maximizing generalized mutual information.
CoRR, 2019
11, 700 km Transmission at 4.8 bit/4D-sym via Four-dimensional Geometrically-shaped Polarization-Ring-Switching Modulation.
Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019
First Experimental Demonstration of Probabilistic Enumerative Sphere Shaping in Optical Fiber Communications.
Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019
Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019
First Experimental Verification of Improved Decoding of Staircase Codes using Marked Bits.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019
Proceedings of the 21st International Conference on Transparent Optical Networks, 2019
Fiber Nonlinearity Mitigation via the Parzen Window Classifier for Dispersion Managed and Unmanaged Links.
Proceedings of the 21st International Conference on Transparent Optical Networks, 2019
2018
IEEE Trans. Inf. Theory, 2018
Capacity Lower Bounds of the Noncentral Chi-Channel With Applications to Soliton Amplitude Modulation.
IEEE Trans. Commun., 2018
Proceedings of the Optical Fiber Communications Conference and Exposition, 2018
Proceedings of the 10th IEEE International Symposium on Turbo Codes & Iterative Information Processing, 2018
Proceedings of the 2018 20th International Conference on Transparent Optical Networks (ICTON), 2018
Proceedings of the 25th International Conference on Telecommunications, 2018
Proceedings of the European Conference on Optical Communication, 2018
Proceedings of the European Conference on Optical Communication, 2018
Achievable Information Rate Losses for High Order Modulation and Hard-Decision Forward Error Correction.
Proceedings of the European Conference on Optical Communication, 2018
2017
CoRR, 2017
Achievable information rates estimates in optically-amplified transmission systems using nonlinearity compensation and probabilistic shaping.
CoRR, 2017
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017
Achievable information rates of square MQAM modulation formats after carrier phase estimation.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017
On the impact of probabilistic shaping on SNR and information rates in multi-span WDM systems.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017
Designing adaptive coded modulation for optical networks via achievable information rates.
Proceedings of the 2017 19th International Conference on Transparent Optical Networks (ICTON), 2017
Nonlinearity Compensation and Information Rates in Fully-Loaded C-band Optical Fibre Transmission Systems.
Proceedings of the European Conference on Optical Communication, 2017
2016
IEEE Trans. Inf. Theory, 2016
An Experimental Comparison of Coded Modulation Strategies for 100 Gbit/s Transceivers.
CoRR, 2016
A Lower Bound on the Capacity of the Noncentral Chi Channel with Applications to Soliton Amplitude Modulation.
CoRR, 2016
Performance Prediction of Nonbinary Forward Error Correction in Optical Transmission Experiments.
CoRR, 2016
Information Rates of Next-Generation Long-Haul Optical Fiber Systems Using Coded Modulation.
CoRR, 2016
On Probabilistic Shaping of Quadrature Amplitude Modulation for the Nonlinear Fiber Channel.
CoRR, 2016
Predicting the performance of nonbinary forward error correction in optical transmission experiments.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016
Improved achievable information rates by optimized four-dimensional demappers in optical transmission experiments.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016
2015
CoRR, 2015
Demonstration of Sensitivity Gains by Probabilistic Shaping for Optical Communication Systems.
CoRR, 2015
CoRR, 2015
Replacing the Soft FEC Limit Paradigm in the Design of Optical Communication Systems.
CoRR, 2015
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015
LDPC codes for optical channels: Is the "FEC limit" a good predictor of post-FEC BER?
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015
Proceedings of the 2015 IEEE Information Theory Workshop, 2015
Proceedings of the IEEE International Symposium on Information Theory, 2015
Experimental demonstration of multi-pilot aided carrier phase estimation for DP-64QAM and DP-256QAM.
Proceedings of the European Conference on Optical Communication, 2015
Proceedings of the European Conference on Optical Communication, 2015
Modulation order and code rate optimisation for digital coherent transceivers using generalised mutual information.
Proceedings of the European Conference on Optical Communication, 2015
Proceedings of the European Conference on Optical Communication, 2015
2014
IEEE Trans. Inf. Theory, 2014
High-SNR Asymptotics of Mutual Information for Discrete Constellations With Applications to BICM.
IEEE Trans. Inf. Theory, 2014
IEEE Commun. Lett., 2014
Terminated and Tailbiting Spatially Coupled Codes with Optimized Bit Mappings for Spectrally Efficient Fiber-Optical Systems.
CoRR, 2014
Improving Soft FEC Performance for Higher-Order Modulations by Bit Mapper Optimization.
CoRR, 2014
Four-Dimensional Coded Modulation with Bit-wise Decoders for Future Optical Communications.
CoRR, 2014
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2014
Optimized bit mappings for spatially coupled LDPC codes over parallel binary erasure channels.
Proceedings of the IEEE International Conference on Communications, 2014
Comparison of terminated and tailbiting spatially coupled LDPC codes with optimized bit mapping for PM-64-QAM.
Proceedings of the European Conference on Optical Communication, 2014
2013
IEEE Trans. Commun., 2013
Design of APSK Constellations for Coherent Optical Channels with Nonlinear Phase Noise.
IEEE Trans. Commun., 2013
Proceedings of the 2013 IEEE International Symposium on Information Theory, 2013
2012
First-order asymptotics of the BICM mutual information: Uniform vs. nonuniform distributions.
Proceedings of the 2012 Information Theory and Applications Workshop, 2012
Proceedings of the 2012 IEEE International Symposium on Information Theory, 2012
Proceedings of the 2012 IEEE International Symposium on Information Theory, 2012
Proceedings of the 2012 IEEE International Symposium on Information Theory, 2012
Proceedings of the 2012 IEEE Global Communications Conference, 2012
Constellation optimization for coherent optical channels distorted by nonlinear phase noise.
Proceedings of the 2012 IEEE Global Communications Conference, 2012
2011
IEEE Trans. Inf. Theory, 2011
Proceedings of the 2011 IEEE Information Theory Workshop, 2011
Proceedings of IEEE International Conference on Communications, 2011
Proceedings of the Global Communications Conference, 2011
2010
Corrections to "Bit-Interleaved Coded Modulation in the Wideband Regime" [Dec 08 5447-5455].
IEEE Trans. Inf. Theory, 2010
IEEE Trans. Commun., 2010
On the BICM Capacity - Part I: Binary Labelings, Arbitrary Input Distributions, and First-Order Asymptotics
CoRR, 2010
CoRR, 2010
BICM Transmission Using Non-Uniform QAM Constellations: Performance Analysis and Design.
Proceedings of IEEE International Conference on Communications, 2010
2009
IEEE Trans. Commun., 2009
Distribution of L-values in gray-mapped M<sup>2</sup>-QAM: closed-form approximations and applications.
IEEE Trans. Commun., 2009
Proceedings of the International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly, 2009
Proceedings of IEEE International Conference on Communications, 2009
Unequal Error Protection in BICM with QAM Constellations: Interleaver and Code Design.
Proceedings of IEEE International Conference on Communications, 2009
2008
Proceedings of the European Wireless 2008, 2008
2007
Proceedings of the International Conference on Wireless Communications and Mobile Computing, 2007
Probability Density Functions of Reliability Metrics for 16-QAM-Based BICM Transmission in Rayleigh Channel.
Proceedings of IEEE International Conference on Communications, 2007
Distribution of L-values in Gray-mapped M<sup>2</sup>-QAM Signals: Exact Expressions and Simple Approximations.
Proceedings of the Global Communications Conference, 2007
2006
Proceedings of the 64th IEEE Vehicular Technology Conference, 2006
2003
Proceedings of the 23rd International Conference of the Chilean Computer Science Society (SCCC 2003), 2003