Erik Agrell
Visar 348 publikationer
PIDT: Physics-Informed Digital Twin for Optical Fiber Parameter Estimation
On the Capacity of Correlated Phase-Noise Channels: An Electro-Optic Frequency Comb Example
Coded Modulation Schemes for Voronoi Constellations
Optimization and Identification of Lattice Quantizers
LDPC coding for bursty optical channels
12.2 bit/s/Hz C-band Transmission with High-Gain Low-Complexity 24-Dimensional Geometric Shaping
Joint Fragmentation- and QoT-Aware RBMSA in Dynamic Multi-Band Elastic Optical Networks
Resource-Efficient QoS-Aware Video Streaming Using UAV-Assisted Networks
Glued lattices are better quantizers than <italic>K</italic><sub>12</sub>
Roadmap on optical communications
High-Speed Multilevel Coded Modulation and Soft Performance Monitoring in Optical Communications
Black-box optimization of parametrically modeled digital circuitry for optical communications
Learning to Extract Distributed Polarization Sensing Data from Noisy Jones Matrices
Physical-layer impairments estimation for random bandwidth traffic
Energy-efficient implementation of probabilistic shaping
On the Best Lattice Quantizers
Kryptovalutor – energiförbrukning och miljöeffekter
Corrections to “Power-Efficient Voronoi Constellations for Fiber-Optic Communication Systems”
Physical Realizations of Multidimensional Voronoi Constellations in Optical Communication Systems
The Voronoi Region of the Barnes-Wall Lattice Λ16
Pilot distributions for phase noise estimation in electro-optic frequency comb systems
Power-Efficient Voronoi Constellations for Fiber-Optic Communication Systems
Data preprocessing for machine-learning-based adaptive data center transmission
Improved Polarization Tracking in the Presence of PDL
Nonlinear Fiber Transmission of Compressed Shaping Signals
Low-Complexity Voronoi Shaping for the Gaussian Channel
Low-Complexity Symbol Demapping for Multidimensional Multilevel Coded Modulation
Comparison of Physical Realizations of Multidimensional Voronoi Constellations in Single Mode Fibers
Capacity Bounds under Imperfect Polarization Tracking
Dynamic Joint Functional Split and Resource Allocation Optimization in Elastic Optical Fronthaul
Benchmarking and Interpreting End-to-end Learning of MIMO and Multi-User Communication
Data-Driven Estimation of Capacity Upper Bounds
Polarization Tracking in the Presence of PDL and Fast Temporal Drift
Low-complexity geometric shaping
Energy-and Bandwidth-Efficient, QoS-Aware Edge Caching in Fog-Enhanced Radio Access Networks
Compressed Shaping: Concept and FPGA Demonstration
The Optimal Lattice Quantizer in Nine Dimensions
Cross-layer static resource provisioning for dynamic traffic in flexible grid optical networks
Performance Prediction Recipes for Optical Links
Analytical Modeling of Nonlinear Fiber Propagation for Four Dimensional Symmetric Constellations
Designing Voronoi Constellations to Minimize Bit Error Rate
Improved Simulation Accuracy of the Split-Step Fourier Method
On the Performance under Hard and Soft Bitwise Mismatched-Decoding
Optimization of Transmitter-Side Signal Rotations in the Presence of Laser Phase Noise
Enabling Technologies for Optical Data Center Networks: Spatial Division Multiplexing
Iterative configuration in elastic optical networks [Invited]
When to Use Optical Amplification in Noncoherent Transmission: An Information-Theoretic Approach
Post-FEC BER Benchmarking for Bit-Interleaved Coded Modulation With Probabilistic Shaping
General QoS-Aware Scheduling Procedure for Passive Optical Networks
Required and received SNRs in coded modulation
Performance Monitoring for Live Systems with Soft FEC and Multilevel Modulation
Antialiased transmitter-side digital backpropagation
Lattice-based geometric shaping
End-to-End Learning of Geometrical Shaping Maximizing Generalized Mutual Information
Sparse-dense MLC for peak power constrained channels
Hierarchical Distribution Matching for Probabilistically Shaped Coded Modulation
Joint Source-Channel Coding via Compressed Distribution Matching in Fiber-Optic Communications
Overcoming the Switching Bottlenecks in Wavelength-Routing, Multicast-Enabled Architectures
On the Impact of Intercore Skew on Joint-Core Carrier-Phase Estimation
Characteristics of homogeneous multi-core fibers for SDM transmission
How to Increase the Achievable Information Rate by Per-Channel Dispersion Compensation
Nonlinearity Mitigation in WDM Systems: Models, Strategies, and Achievable Rates
Accuracy Assessment of Nondispersive Optical Perturbative Models through Capacity Analysis
Joint Power-Efficient Traffic Shaping and Service Provisioning for Metro Elastic Optical Networks
FPGA implementation of distribution matching and dematching
Probabilistic spectrum Gaussian noise estimate for random bandwidth traffic
Static resource allocation for dynamic traffic
Dynamic Resource Allocation in Metro Elastic Optical Networks using Lyapunov Drift Optimization
Corrections to 'High capacity transmission with few-mode fibers'
Channel allocation in elastic optical networks using traveling salesman problem algorithms
High capacity transmission with few-mode fibers
Performance monitoring for live systems with soft FEC
On the Performance of Joint-Core Carrier-Phase Estimation in the Presence of Intercore Skew
Regular perturbation for the weak-dispersion regime
Quality of Transmission Aware Optical Networking Using Enhanced Gaussian Noise Model
Iterative Resource Allocation Algorithm for EONs Based on a Linearized GN Model
Iterative Detection and Phase-Noise Compensation for Coded Multichannel Optical Transmission
Joint Phase Tracking for Multicore Transmission with Correlated Phase Noise
Improved lower bounds on mutual information accounting for nonlinear signal–noise interaction
Scalable Interconnection Scheme for Data Center Multicast Applications
Asymptotic comparison of ML and MAP detectors for multidimensional constellations
Wavelength Reuse for Scalable Multicasting: A Cross-Layer Perspective
A Low-Complexity Near-Optimal Detector for Multispan Zero-Dispersion Fiber-Optic Channels
Regenerator Allocation in Nonlinear Elastic Optical Networks With Random Data Rates
Spectral efficiency limits in crosstalk-impaired multi-core fiber links
Information-Theoretic Tools for Optical Communications Engineers [Invited]
Multidimensional sampling of isotropically bandlimited signals
Efficient Offline Evaluation of FEC Codes Based on Captured Data with Probabilistic Shaping
Technologies toward implementation of probabilistic constellation shaping
159 Tbit/s C+L Band Transmission over 1045 km 3-Mode Graded-Index Few-Mode Fiber
Improving the Achievable Rates of Optical Coherent Transmission with Back-Propagation
Demodulation and Detection Schemes for a Memoryless Optical WDM Channel
Multicast scheduling of wavelength-tunable, multiqueue optical data center switches
Multi-channel collision-free reception for optical interconnects
Modulation and detection for multicore superchannels with correlated phase noise [Invited]
Network Performance Trade-Off in Modular Data Centers With Optical Spatial Division Multiplexing
Fiber nonlinearity mitigation in WDM systems: Strategies and achievable rates
Digital backpropagation accounting for polarization-mode dispersion
A Tighter Upper Bound on the Capacity of the Nondispersive Optical Fiber Channel
Capacity scaling of flexible optical networks with nonlinear impairment [Invited]
Multicast Scheduling for Optical Data Center Switches with Tunability Constraints
Scalability analysis methodology for passive optical interconnects in data center networks using PAM
A Novel Demodulation Scheme for a Memoryless Optical Interference Channel
On the limits of digital back-propagation in the presence of transceiver noise
Temporal Stochastic Channel Model for Absolute Polarization State and Polarization-Mode Dispersion
High Capacity Transmission Systems Using Homogeneous Multi-Core Fibers [Invited]
Modified Digital Backpropagation Accounting for Polarization-Mode Dispersion
Multidimensional Modulation and Coding in Optical Transport [Invited]
Joint Assignment of Power, Routing, and Spectrum in Static Flexible-Grid Networks
PAM Performance Analysis in Multicast-Enabled Wavelength-Routing Data Centers
High-capacity MCF transmission with wideband comb
Regenerator Site Predeployment in Nonlinear Dynamic Flexible-Grid Networks
An impairment-aware resource allocation scheme for dynamic elastic optical networks
Performance Metrics for Systems with Soft-Decision FEC and Probabilistic Shaping
Achievable information rates of nonbinary codes for optical fiber transmission
Network performance trade-Off in optical spatial division multiplexing data centers
Capacity bounds in optical communications
Achievable rates of multidimensional multisphere distributions
Matrix receiving scheme supporting arbitrary multiple-wavelength reception for optical interconnects
Pilot Distributions for Phase Tracking in Space-Division Multiplexed Systems
Optical Circuit Granularity Impact in TCP-Dominant Hybrid Data Center Networks
Information rates of next-generation long-haul optical fiber systems using coded modulation
Phase-Noise Compensation for Spatial-Division Multiplexed Transmission
Ultra-Wideband Nonlinearity Compensation Performance in the Presence of PMD
Modulation Format Independent Joint Polarization and Phase Tracking for Coherent Receivers
On the Information Loss of the Max-Log Approximation in BICM Systems
To overcome the scalability limitation of passive optical interconnects in datacentres
Polarization-Mode Dispersion Aware Digital Backpropagation
Pb/s, homogeneous, single-mode, multi-core fiber systems
Replacing the Soft-Decision FEC Limit Paradigm in the Design of Optical Communication Systems
Joint-Polarization Phase-Noise Estimation and Symbol Detection for Optical Coherent Receivers
Sensitivity Comparison of Time Domain Hybrid Modulation and Rate Adaptive Coding
Stochastic Digital Backpropagation with Residual Memory Compensation
Traffic-grooming- and multipath-routing-enabled impairment-aware elastic optical networks
A Deterministic Construction and Density Evolution Analysis for Generalized Product Codes
Multidimensional Modulation and Coding
Polarization Drift Channel Model for Coherent Fibre-Optic Systems
Parallel Improved Schnorr-Euchner Enumeration SE++ for the CVP and SVP
Multidimensional modulation formats for coherent optical communications
Implications of information theory in optical fibre communications
Regenerator site selection in impairment-aware elastic optical networks
Roadmap of optical communications
Multidimensional Optimized Optical Modulation Formats
Link-Level Resource Allocation for Flexible-Grid Nonlinear Fiber-Optic Communication Systems
Coherent transmission channels as 4d rotations
Experimental Investigation of a Four-Dimensional 256-ary Lattice-based Modulation Format
Power Consumption of Hybrid EDFA/Raman Amplified Systems
A simple strategy for mitigating XPM in nonlinear WDM optical systems
Backward particle message passing
Spatially-Coupled Codes for Optical Communications: State-of-the-Art and Open Problems
On the Use of Factor Graphs in Optical Communications
Code Rate Optimization in Elastic Optical Networks
Four-Dimensional Estimates of Mutual Information in Coherent Optical Communication Experiments
On Parameter Optimization for Staircase Codes
Optimum detection in presence of nonlinear distortions with memory
Power Optimization in Nonlinear Flexible-Grid Optical Networks
Resource Allocation for Flexible-Grid Optical Networks With Nonlinear Channel Model
Conditions for a Monotonic Channel Capacity
Influence of Behavioral Models on Multiuser Channel Capacity
Nonlinear Impairment-Aware Static Resource Allocation in Elastic Optical Networks
Replacing the Soft-Decision FEC Limit Paradigm in the Design of Optical Communication Systems
Symbol-by-Symbol Joint Polarization and Phase Tracking in Coherent Receivers
Resource Allocation in Nonlinear Flexible-Grid Fiber-Optic Networks
Nonlinear impairment aware resource allocation in elastic optical networks
LDPC codes for optical channels: Is the "FEC limit" a good predictor of post-FEC BER?
Four-Dimensional Coded Modulation with Bit-Wise Decoders for Future Optical Communications
Linear block-coding across >5 Tb/s PDM-64QAM spatial-super-channels in a 19-core fiber
Information-theory-friendly models for fiber-optic channels: A primer
Single parity check-coded 16QAM over spatial superchannels in multicore fiber transmission
On the Asymptotic Performance of Bit-Wise Decoders for Coded Modulation
Optimized Bit Mappings for Spatially Coupled LDPC Codes over Parallel Binary Erasure Channels
Rate-Adaptive Coded Modulation for Fiber-Optic Communications
Modulation formats for multi-core fiber transmission
Coded Modulation for Fiber-Optic Networks
A Simple Approximation for the Bit-Interleaved Coded Modulation Capacity
Bandlimited Power-Efficient Signaling for Intensity Modulation
Improving soft FEC performance for higher-order modulations via optimized bit channel mappings
Capacity of a nonlinear optical channel with finite memory
On Maximum Likelihood Sequence Detectors for Single-channel Coherent Optical Communications
Sensing or Transmission: Causal Cognitive Radio Strategies with Censorship
Bandlimited Power-Efficient Signaling and Pulse Design for Intensity Modulation
Single parity check multi-core modulation for power efficient spatial super-channels
K-Over-L Multidimensional Position Modulation
Modeling of Nonlinear Signal Distortion in Fiber-Optic Networks
Stochastic Digital Backpropagation
Achievable rates for four-dimensional coded modulation with a bit-wise receiver
Biorthogonal modulation in 8 dimensions experimentally implemented as 2PPM-PS-QPSK
Energy efficient modulation formats for multi-core fibers
High-SNR Asymptotics of Mutual Information for Discrete Constellations With Applications to BICM
A Low-Complexity Detector for Memoryless Polarization-Multiplexed Fiber-Optical Channels
On the Exact BER of Bit-Wise Demodulators for One-Dimensional Constellations
On nonlinearly-induced noise in single-channel optical links with digital backpropagation
Subset-Optimized Polarization-Multiplexed PSK for Fiber-Optic Communications
WDM channel capacity and its dependence on multichannel adaptation models
MCRB for Timing and Phase Offset for Low-Rate Optical Communication with Self-Phase Modulation
Methodology for Power-Aware Coherent Receiver Design
Extending Digital Backpropagation to Account for Noise
Frequency and polarization switched QPSK
35.2 Gbps 8-PAM transmission over 100 m of MMF using an 850 nm VCSEL
Design of APSK Constellations for Coherent Optical Channels with Nonlinear Phase Noise
Signal Shaping for BICM at Low SNR
High-SNR Asymptotics of Mutual Information for Discrete Constellations
On the Equivalence of TCM Encoders
Continuous-Amplitude Modulation for Optical Wireless Channels
A Two-Dimensional Signal Space for Intensity-Modulated Channels
First-order asymptotics of the BICM mutual information: Uniform vs. nonuniform distributions
Comparison of 128-SP-QAM with PM-16-QAM
Bandlimited Intensity Modulation
Achieving the Shannon Limit with Probabilistically Shaped BICM
General BER Expression for One-Dimensional Constellations
A Discrete-Time Model for Uncompensated Single-Channel Fiber-Optical Links
4-PAM for high-speed short-range optical communications
Asymptotically optimal trellis coded modulation systems
Adaptive Coded Modulation for Nonlinear Fiber-Optical Channels
Optimizing Constellations for Single-Subcarrier Intensity-Modulated Optical Systems
Modulation method and apparatus for amplitude- or intensity-modulated communication systems
Constellation Optimization for Coherent Optical Channels Distorted by Nonlinear Phase Noise
Spectrally efficient four-dimensional modulation
Satellite constellations: Towards the nonlinear channel capacity
On Optimum Causal Cognitive Spectrum Reutilization Strategy
Modified Cramer-Rao Bound for Clock Recovery in the Presence of Self-Phase Modulation
Optimized lattice-based 16-level subcarrier modulation for IM/DD systems
Multidimensional capacity-approaching coded modulation scheme for fiber optical communications
The Limits of Digital Backpropagation in Nonlinear Coherent Fiber-Optical Links
Performance Comparison between 120 Gbit/s RZ-DQP-ASK and RZ-D8PSK over a 480 km Link
Faster Recursions in Sphere Decoding
30 Gbps 4-PAM transmission over 200m of MMF using an 850 nm VCSEL
Strictly Bandlimited ISI-Free Transmission Over Intensity-Modulated Channels
On BICM receivers for TCM transmission
An LLR-based Cognitive Transmission Strategy for Higher Spectrum Reutilization
Experimental comparison of modulation formats in IM/DD links
Demonstration of 8-level subcarrier modulation sensitivity improvement in an IM/DD system
Modified constant modulus algorithm for polarization-switched QPSK
On the symbol error probability of regular polytopes
Generalized pulse-position modulation for optical power-efficient communication
Designing Power-Efficient Modulation Formats for Noncoherent Optical Systems
High SNR Bounds for the BICM Capacity
Multilevel pulse-position modulation for optical power-efficient communication
30 Gbps 4-PAM transmission over 200m of MMF using an 850 nm VCSEL
Signal Statistics in Fiber-Optical Channels with Polarization Multiplexing and Self-Phase Modulation
Stochastic Backpropagation for Coherent Optical Communications
Power efficient modulation schemes [Invited book chapter]
An ML-based Detector for Optical Communication in the Presence of Nonlinear Phase Noise
Optimization of 16-point Ring Constellations in the Presence of Nonlinear Phase Noise
On the performance of BICM with trivial interleavers in nonfading channels
Optimal Alphabets and Binary Labelings for BICM at Low SNR
CMA Misconvergence in Coherent Optical Communication for Signals Generated from a Single PRBS
Convergence Comparison of the CMA and ICA for Blind Polarization Demultiplexing
A novel rate allocation method for multilevel coded modulation
A novel multilevel coded modulation scheme for fiber optical channel with nonlinear phase noise
On BICM-ID with Multiple Interleavers
Four-Dimensional Optimized Constellations for Coherent Optical Transmission Systems
Electronic dispersion compensation by Hadamard transformation
Wideband Sequential Spectrum Sensing with Varying Thresholds
Power efficient subcarrier modulation for intensity modulated channels
Constellation optimization for coherent optical transmission systems
Operational Regime of Symbol-by-Symbol Phase Noise Estimation for POLMUX 16-QAM
Corrections to 'Bit-interleaved coded modulation in the wideband regime'
The Impact of Self-Phase Modulation on Digital Clock Recovery in Coherent Optical Communication
On the dimensionality of multilevel coded modulation in the high SNR regime
Interleaved Polarization Division Multiplexing in Self-Homodyne Coherent WDM Systems
Exploiting UEP in QAM-based BICM: Interleaver and Code Design
Intersymbol interference in DQPSK fibre-optic systems
Unequal Error Protection in BICM with QAM Constellations: Interleaver and Code Design
On optimal constellations for BICM at low SNR
Power-efficient modulation formats in coherent transmission systems
On the Capacity of BICM with QAM Constellations
Which is the most power-efficient modulation format in optical links?
Correcting Suboptimal Metrics in Iterative Decoders
Trellis-Coded Modulation in Fiber-Optic Communications
On the Design of Interleavers for BICM Transmission
Gray coding for multilevel constellations in Gaussian noise
Transmitter comparison and unequal bit error probabilities in coherent QPSK systems
Fiber communications using convolutional coding and bandwidth-efficient modulation
PSK bit mappings with good minimax error probability
Trellis-Coded Modulation in PSK and DPSK Communications
Bit error probability of coherent M-ary PSK over flat Rayleigh fading channels
Design and performance of carrier-based direct-sequence ultra-wideband systems
Improvement of DPSK transmission by using convolutional error correction coding
Optimality of the binary reflected Gray code for the Gaussian channel
Bit error probability of coherent M-ary PSK over flat Rayleigh fading channels
Performance of Coded Single-Band Carrier-Based DS-SS Systems on IEEE 802.15.3a UWB Channels
Frequency Diversity Performance of Coded Multiband-OFDM Systems on IEEE UWB Channels
The binary reflected Gray code is optimal for M-PSK
On the optimality of the binary reflected Gray code
Computation of the Exact Bit Error Rate of Coherent M-ary PSK with Gray Code Bit Mapping
Unequal Bit-Error Protection in Coherent M-ary PSK
Exploring a space of materials: Spatial sampling design and subset selection
On the duality between low-rate and high-rate sampling
Optimal lattices for interpolation of stationary random fields
Computation of the Exact Bit-Error Rate of Coherent M-ary PSK With Gray Code Bit Mapping
The exact symbol and bit error probabilities of coherent M-ary PSK
Closest point search in lattices
A table of upper bounds for binary codes
Constant-weight code bounds from spherical code bounds
Upper bounds for constant-weight codes
On the Voronoi neighbor ratio for binary linear block codes
Optimization of lattices for quantization
Image compression in San Diego
Voronoi regions for binary linear block codes
The Hadamard transform - a tool for index assignment
ML optimal CDMA multiuser receiver
How to evaluate search methods for vector quantization
A method for examining vector quantizer structures
Spectral coding by fast vector quantization
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Visar 15 forskningsprojekt
Komplexitetsbegränsade gitter för kommunikation och signalbehandling
Kommunikation över optiska kanaler med skurfel
Frigöra full fiberoptisk kapacitet
Signalformning i optisk datatransmission – bortom gausskanalen
Coding for Optical communications In the Nonlinear regime (COIN)
Polarisationsanpassad fiberoptisk transmission
Mot flexibla och energieffektiva datacenternätverk
Teknologier for spatiell multiplexning: nästa utmaning inom optisk kommunikation
Energieffektiv optisk fiberkommunikation
Fiberoptisk interferens är inte brus
Adaptiva optiska nätverk: Teori och algoritmer för systemoptimering
Analys och Design av MIMO-BICM
Energieffektiv terabit/s transmission
Teori och algoritmer för fiberoptisk intensitetskommunikation