Alex Alvarado

According to our database1, Alex Alvarado authored at least 118 papers between 2003 and 2020.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

Legend:

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PhD thesis 
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Bibliography

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

On the Capacity of Amplitude Modulated Soliton Communication over Long Haul Fibers.
Entropy, 2020

Hard-Decision Coded Modulation for High-Throughput Short-Reach Optical Interconnect.
Entropy, 2020

Nonlinear Interference Analysis of Probabilistic Shaping vs. 4D Geometrically Shaped Formats.
CoRR, 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

Refined Reliability Combining for Binary Message Passing Decoding of Product Codes.
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

Model-Based Machine Learning for Joint Digital Backpropagation and PMD Compensation.
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

Digital Self-Coherent Continuous Variable Quantum Key Distribution System.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2020

2019
Improved Decoding of Staircase Codes: The Soft-Aided Bit-Marking (SABM) Algorithm.
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

Analysis and Optimisation of Distribution Matching for the Nonlinear Fibre Channel.
CoRR, 2019

Enumerative Sphere Shaping for Rate Adaptation and Reach Increase in WDM Transmission Systems.
CoRR, 2019

A novel soft-aided bit-marking decoder for product codes.
CoRR, 2019

Revisiting Multi-Step Nonlinearity Compensation with Machine Learning.
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

Improving HD-FEC decoding via bit marking.
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

Regular perturbation for the weak-dispersion regime.
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
Asymptotic Comparison of ML and MAP Detectors for Multidimensional Constellations.
IEEE Trans. Inf. Theory, 2018

Capacity Lower Bounds of the Noncentral Chi-Channel With Applications to Soliton Amplitude Modulation.
IEEE Trans. Commun., 2018

A Simple Nonlinearity-Tailored Probabilistic Shaping Distribution for Square QAM.
Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

Decoding Staircase Codes with Marked Bits.
Proceedings of the 10th IEEE International Symposium on Turbo Codes & Iterative Information Processing, 2018

A Reduced-Complexity Linear Precoding Strategy for Massive MIMO Base Stations.
Proceedings of the 25th International Conference on Telecommunications, 2018

Capacity Estimates of Single Soliton Communication.
Proceedings of the European Conference on Optical Communication, 2018

Increasing Achievable Information Rates via Geometric Shaping.
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
Achievable Information Rates for Fiber Optics: Applications and Computations.
CoRR, 2017

Achievable information rates estimates in optically-amplified transmission systems using nonlinearity compensation and probabilistic shaping.
CoRR, 2017

Nonlinear frequency-division multiplexing in the focusing regime.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2017

Spatial pulse position modulation for multi-mode transmission systems.
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

Information rates and post-FEC BER prediction in optical fiber communications.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 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
On the Information Loss of the Max-Log Approximation in BICM Systems.
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

Algorithms and reach enhancement for ultra high bandwidth transceivers.
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

Impact of amplifier noise figure on network throughput.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2016

2015
Why compensating fibre nonlinearity will never meet capacity demands.
CoRR, 2015

The Benefit of Split Nonlinearity Compensation for Optical Fiber Communications.
CoRR, 2015

Demonstration of Sensitivity Gains by Probabilistic Shaping for Optical Communication Systems.
CoRR, 2015

On Achievable Rates for Long-Haul Fiber-Optic Communications.
CoRR, 2015

On the Impact of Optimal Modulation and FEC Overhead on Future Optical Networks.
CoRR, 2015

Replacing the Soft FEC Limit Paradigm in the Design of Optical Communication Systems.
CoRR, 2015

Transceiver-limited high spectral efficiency Nyquist-WDM systems.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

Reach enhancement of 100% for a DP-64QAM super-channel using MC-DBP.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

On parameter optimization for staircase codes.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

LDPC coded modulation with probabilistic shaping for optical fiber systems.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

On optimal modulation and FEC overhead for future optical networks.
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

A lower bound on the per soliton capacity of the nonlinear optical fibre channel.
Proceedings of the 2015 IEEE Information Theory Workshop, 2015

Improved information rates for bit-interleaved coded modulation.
Proceedings of the IEEE International Symposium on Information Theory, 2015

2014
On the Asymptotic Performance of Bit-Wise Decoders for Coded Modulation.
IEEE Trans. Inf. Theory, 2014

High-SNR Asymptotics of Mutual Information for Discrete Constellations With Applications to BICM.
IEEE Trans. Inf. Theory, 2014

A Simple Approximation for the Bit-Interleaved Coded Modulation Capacity.
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

Capacity of a Nonlinear Optical Channel with Finite Memory.
CoRR, 2014

Achievable rates for four-dimensional coded modulation with a bit-wise receiver.
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

2013
Signal Shaping for BICM at Low SNR.
IEEE Trans. Inf. Theory, 2013

On the Exact BER of Bit-Wise Demodulators for One-Dimensional Constellations.
IEEE Trans. Commun., 2013

Design of APSK Constellations for Coherent Optical Channels with Nonlinear Phase Noise.
IEEE Trans. Commun., 2013

On Optimal TCM Encoders.
IEEE Trans. Commun., 2013

High-SNR asymptotics of mutual information for discrete constellations.
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

An efficient algorithm to calculate BICM capacity.
Proceedings of the 2012 IEEE International Symposium on Information Theory, 2012

On the equivalence of TCM encoders.
Proceedings of the 2012 IEEE International Symposium on Information Theory, 2012

Achieving the Shannon limit with probabilistically shaped BICM.
Proceedings of the 2012 IEEE International Symposium on Information Theory, 2012

General BER expression for one-dimensional constellations.
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
Optimal Alphabets and Binary Labelings for BICM at Low SNR.
IEEE Trans. Inf. Theory, 2011

Towards Fully Optimized BICM Transceivers.
IEEE Trans. Commun., 2011

On BICM Receivers for TCM Transmission.
IEEE Trans. Commun., 2011

High SNR bounds for the BICM capacity.
Proceedings of the 2011 IEEE Information Theory Workshop, 2011

On the Performance of BICM with Trivial Interleavers in Nonfading Channels.
Proceedings of IEEE International Conference on Communications, 2011

Constellation and Interleaver Design for BICM.
Proceedings of the Global Communications Conference, 2011

2010
Towards Fully Optimized BICM Transmissions.
PhD thesis, 2010

Corrections to "Bit-Interleaved Coded Modulation in the Wideband Regime" [Dec 08 5447-5455].
IEEE Trans. Inf. Theory, 2010

Exploiting UEP in QAM-based BICM: interleaver and code design.
IEEE Trans. Commun., 2010

On BICM-ID with Multiple Interleavers.
IEEE Commun. Lett., 2010

On the BICM Capacity - Part I: Binary Labelings, Arbitrary Input Distributions, and First-Order Asymptotics
CoRR, 2010

BICM Capacity - Part II: First-Order Optimal Signal Sets and Binary Labelings
CoRR, 2010

BICM Transmission Using Non-Uniform QAM Constellations: Performance Analysis and Design.
Proceedings of IEEE International Conference on Communications, 2010

2009
Distribution of max-log metrics for QAM-based BICM in fading channels.
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

On the capacity of BICM with QAM constellations.
Proceedings of the International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly, 2009

Correcting Suboptimal Metrics in Iterative Decoders.
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
On the Design of Interleavers for BICM Transmission.
Proceedings of the European Wireless 2008, 2008

2007
On the distribution of extrinsic L-values in gray-mapped 16-QAM.
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
On Adaptive BICM with Finite Block-Length and Simplified Metrics Calculation.
Proceedings of the 64th IEEE Vehicular Technology Conference, 2006

2003
Parallel Discrete-Event Simulation Framework.
Proceedings of the 23rd International Conference of the Chilean Computer Science Society (SCCC 2003), 2003


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