Zi Long Liu

Orcid: 0000-0002-5851-4261

Affiliations:
  • University of Essex, School of Computer Science and Electronic Engineering, UK
  • University of Surrey, Institute for Communication Systems, Guildford, UK (2018 - 2019)
  • Nanyang Technological University, Singapore (former)


According to our database1, Zi Long Liu authored at least 175 papers between 2011 and 2024.

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Bibliography

2024
AFDM-SCMA: A Promising Waveform for Massive Connectivity Over High Mobility Channels.
IEEE Trans. Wirel. Commun., October, 2024

Deep Learning Assisted Multiuser MIMO Load Modulated Systems for Enhanced Downlink mmWave Communications.
IEEE Trans. Wirel. Commun., July, 2024

Sparse Code Multiple Access With Enhanced K-Repetition Scheme: Analysis and Design.
IEEE Trans. Wirel. Commun., June, 2024

Correction: Chen et al. HP3D-V2V: High-Precision 3D Object Detection Vehicle-to-Vehicle Cooperative Perception Algorithm. Sensors 2024, 24, 2170.
Sensors, June, 2024

Enhancing Signal Space Diversity for SCMA Over Rayleigh Fading Channels.
IEEE Trans. Wirel. Commun., April, 2024

HP3D-V2V: High-Precision 3D Object Detection Vehicle-to-Vehicle Cooperative Perception Algorithm.
Sensors, April, 2024

Novel Power-Imbalanced Dense Codebooks for Reliable Multiplexing in Nakagami Channels.
IEEE Wirel. Commun. Lett., January, 2024

BER Analysis of SCMA-OFDM Systems in the Presence of Carrier Frequency Offset.
IEEE Commun. Lett., January, 2024

Resource management for sum-rate maximization in SCMA-assisted UAV system.
Veh. Commun., 2024

New Correlation Bound and Construction of Quasi-Complementary Sequence Sets.
IEEE Trans. Inf. Theory, 2024

Two-Dimensional Golay Complementary Array Sets With Arbitrary Lengths for Omnidirectional MIMO Transmission.
IEEE Trans. Commun., 2024

New Constructions of 2-D Golay Complementary Array Sets With Highly Flexible Array Sizes for Massive MIMO Omni-Directional Transmission.
IEEE Signal Process. Lett., 2024

Enhanced Cross Z-Complementary Set and Its Application in Generalized Spatial Modulation.
IEEE Open J. Commun. Soc., 2024

A Further Investigation on Complete Complementary Codes from <i>q</i>-ary Functions.
CoRR, 2024

A Computer Search of Primitive OBZCPs of Lengths up to 49.
CoRR, 2024

New Lower Bounds on Aperiodic Ambiguity Function of Unimodular Sequences.
CoRR, 2024

Model-Driven Federated Learning for Channel Estimation in Millimeter-Wave Massive MIMO Systems.
Proceedings of the IEEE Wireless Communications and Networking Conference, 2024

Factor Graph Hopping Based FH-SCMA for Band-Limited and Large-Scale IoT Networks.
Proceedings of the 100th IEEE Vehicular Technology Conference, 2024

A New Construction of Enhanced Cross Z-Complementary Sets with Maximum Zero Correlation Zone.
Proceedings of the IEEE International Symposium on Information Theory, 2024

2023
Uniform-Distributed Constellation Codebook Design for High-Capacity Visible Light Communications.
IEEE Commun. Lett., November, 2023

A Design of Low-Projection SCMA Codebooks for Ultra-Low Decoding Complexity in Downlink IoT Networks.
IEEE Trans. Wirel. Commun., October, 2023

OTFS-SCMA: A Downlink NOMA Scheme for Massive Connectivity in High Mobility Channels.
IEEE Trans. Wirel. Commun., September, 2023

Sum-Rate Maximization of IRS-Aided SCMA System.
IEEE Trans. Veh. Technol., August, 2023

HpGAN: Sequence Search With Generative Adversarial Networks.
IEEE Trans. Neural Networks Learn. Syst., August, 2023

Symmetrical Z-Complementary code sets for optimal training in generalized spatial modulation.
Signal Process., July, 2023

A Novel Maximum Distance Separable Coded OFDM-RIS for 6G Wireless Communications.
IEEE Wirel. Commun. Lett., May, 2023

Jamming Modulation: An Active Anti-Jamming Scheme.
IEEE Trans. Wirel. Commun., April, 2023

Attacking Spectrum Sensing With Adversarial Deep Learning in Cognitive Radio-Enabled Internet of Things.
IEEE Trans. Reliab., 2023

New Spectrally Constrained Sequence Sets With Optimal Periodic Cross-Correlation.
IEEE Trans. Inf. Theory, 2023

Deep Learning Assisted Multiuser MIMO Load Modulated Systems for Enhanced Downlink mmWave Communications.
CoRR, 2023

Flag Sequence Set Design for Low-Complexity Delay-Doppler Estimation.
CoRR, 2023

Root Cross Z-Complementary Pairs with Large ZCZ Width.
CoRR, 2023

On the Mates of Cross Z-Complementary Pairs for Training Sequence Design in Generalized Spatial Modulation.
IEEE Access, 2023

Reinforcement Learning Aided Link Adaptation for Downlink NOMA Systems With Channel Imperfections.
Proceedings of the IEEE Wireless Communications and Networking Conference, 2023

Trajectory Design for Sum-Rate Enhancement in UAV-SCMA System.
Proceedings of the 97th IEEE Vehicular Technology Conference, 2023

Sparse Complementary Pairs with Additional Aperiodic ZCZ Property.
Proceedings of the IEEE International Symposium on Information Theory, 2023

MINE-based Geometric Constellation Shaping in AWGN Channel.
Proceedings of the IEEE/CIC International Conference on Communications in China, 2023

Efficient Multiuser Detection for Uplink Grant-Free NOMA via Weighted Block Coordinate Descend.
Proceedings of the IEEE International Conference on Communications, 2023

Resource Allocation for Sum-Rate Maximization in Multi-UAV SCMA Networks.
Proceedings of the IEEE Globecom Workshops 2023, 2023

2022
A Hybrid Multi-Domain Index Modulation for Covert Communication.
IEEE Wirel. Commun. Lett., 2022

Designing Enhanced Multidimensional Constellations for Code-Domain NOMA.
IEEE Wirel. Commun. Lett., 2022

A Novel Non-Coherent SCMA With Massive MIMO.
IEEE Wirel. Commun. Lett., 2022

A Novel Multitask Learning Empowered Codebook Design for Downlink SCMA Networks.
IEEE Wirel. Commun. Lett., 2022

Low-Complexity Channel Estimation and Multi-User Detection for Uplink Grant-Free NOMA Systems.
IEEE Wirel. Commun. Lett., 2022

An Improved EPA-Based Receiver Design for Uplink LDPC Coded SCMA System.
IEEE Wirel. Commun. Lett., 2022

Enhanced User Grouping and Power Allocation for Hybrid mmWave MIMO-NOMA Systems.
IEEE Trans. Wirel. Commun., 2022

Optimal Quasi-Orthogonal FH Sequences With Adaptive Array Receiver for Massive Connectivity in Asynchronous Multi-Cluster Networks.
IEEE Trans. Wirel. Commun., 2022

Designing Low-PAPR Waveform for OFDM-Based RadCom Systems.
IEEE Trans. Wirel. Commun., 2022

Design of Power-Imbalanced SCMA Codebook.
IEEE Trans. Veh. Technol., 2022

Power Allocation-Aided Enhanced SM-OFDM: Closed-Form Solutions and Experimental Results.
IEEE Trans. Veh. Technol., 2022

Low-Complexity Block Coordinate Descend Based Multiuser Detection for Uplink Grant-Free NOMA.
IEEE Trans. Veh. Technol., 2022

Heterogeneous Visible Light and Radio Communication for Improving Safety Message Dissemination at Road Intersection.
IEEE Trans. Intell. Transp. Syst., 2022

A Survey on Resource Allocation in Vehicular Networks.
IEEE Trans. Intell. Transp. Syst., 2022

6G for Vehicle-to-Everything (V2X) Communications: Enabling Technologies, Challenges, and Opportunities.
Proc. IEEE, 2022

Exploring cooperative NOMA assisted hybrid visible light and radio frequency for enhanced vehicular message dissemination at road intersections.
Phys. Commun., 2022

Low-Complexity Codebook Design for SCMA-Based Visible Light Communication.
IEEE Open J. Commun. Soc., 2022

Distributed Few-Shot Learning for Intelligent Recognition of Communication Jamming.
IEEE J. Sel. Top. Signal Process., 2022

Low Ambiguity Zone: Theoretical Bounds and Doppler-Resilient Sequence Design in Integrated Sensing and Communication Systems.
IEEE J. Sel. Areas Commun., 2022

DSLN: Securing Internet of Things Through RF Fingerprint Recognition in Low-SNR Settings.
IEEE Internet Things J., 2022

On the Data Freshness for Industrial Internet of Things With Mobile-Edge Computing.
IEEE Internet Things J., 2022

A Novel Extreme-Learning-Machine Aided Receiver Design for THz-SM With Hardware Imperfections.
IEEE Commun. Lett., 2022

Towards 6G-V2X: Hybrid RF-VLC for Vehicular Networks.
CoRR, 2022

A Design of Low-Projection SCMA Codebooks for Downlink Satellite Internet of Things.
CoRR, 2022

A Novel K-Repetition Design for SCMA.
CoRR, 2022

Asymptotically Optimal Quasi-Complementary Code Sets from Multivariate Functions.
CoRR, 2022

A Novel Multi-Task Learning Empowered Codebook Design for Downlink SCMA Networks.
CoRR, 2022

A Tutorial on Decoding Techniques of Sparse Code Multiple Access.
IEEE Access, 2022

OAMP for Low Complexity Detection in Large-Scale LDS Systems.
Proceedings of the 10th International Workshop on Signal Design and Its Applications in Communications, 2022

A Novel Design of Flag Sequences for Low-Complexity Delay-Doppler Estimation.
Proceedings of the 10th International Workshop on Signal Design and Its Applications in Communications, 2022

Minimizing Age of Information for Mobile Edge Computing Empowered Industrial Internet of Things.
Proceedings of the 10th International Workshop on Signal Design and Its Applications in Communications, 2022

A Gear Construction of CRC Codes for Enhanced Polar Decoding.
Proceedings of the 10th International Workshop on Signal Design and Its Applications in Communications, 2022

BCH-SPC based Cubic Turbo Product Coding.
Proceedings of the 10th International Workshop on Signal Design and Its Applications in Communications, 2022

Designing Two-Dimensional Complete Complementary Codes for Omnidirectional Transmission in Massive MIMO Systems.
Proceedings of the IEEE International Symposium on Information Theory, 2022

New Family of Cross Z-Complementary Sequences With Large ZCZ Width.
Proceedings of the IEEE International Symposium on Information Theory, 2022

Deep Reinforcement Learning for Data Freshness-oriented Scheduling in Industrial IoT.
Proceedings of the IEEE Global Communications Conference, 2022

2021
Sparse or Dense: A Comparative Study of Code-Domain NOMA Systems.
IEEE Trans. Wirel. Commun., 2021

How to Construct Mutually Orthogonal Complementary Sets With Non-Power-of-Two Lengths?
IEEE Trans. Inf. Theory, 2021

Secrecy Rate Optimization for Intelligent Reflecting Surface Assisted MIMO System.
IEEE Trans. Inf. Forensics Secur., 2021

Trajectory and Resource Optimization in OFDM-Based UAV-Powered IoT Network.
IEEE Trans. Green Commun. Netw., 2021

Perturbed Adaptive Belief Propagation Decoding for High-Density Parity-Check Codes.
IEEE Trans. Commun., 2021

Multi-Dimensional Polarized Modulation for Land Mobile Satellite Communications.
IEEE Trans. Cogn. Commun. Netw., 2021

Pseudo-Boolean Functions for Optimal Z-Complementary Code Sets With Flexible Lengths.
IEEE Signal Process. Lett., 2021

A hybrid algorithm for the search of long binary sequences with low aperiodic autocorrelations.
Soft Comput., 2021

An Error Rate Comparison of Power Domain Non-Orthogonal Multiple Access and Sparse Code Multiple Access.
IEEE Open J. Commun. Soc., 2021

A Novel Hybrid Code-Domain Index Modulation Scheme.
IEEE Commun. Lett., 2021

Sparse Code Multiple Access for 6G Wireless Communication Networks: Recent Advances and Future Directions.
IEEE Commun. Stand. Mag., 2021

5G NR-V2X: Toward Connected and Cooperative Autonomous Driving.
IEEE Commun. Stand. Mag., 2021

Designing Enhanced Multi-dimensional Constellations for Code-Domain NOMA.
CoRR, 2021

Designing Two-Dimensional Complete Complementary Codes for Omnidirectional Transmission in Massive MIMO Systems.
CoRR, 2021

A Tutorial to Sparse Code Multiple Access.
CoRR, 2021

A Direct Construction of Complete Complementary Codes With Arbitrary Lengths.
CoRR, 2021

Resource and trajectory optimization in UAV-powered wireless communication system.
Sci. China Inf. Sci., 2021

Frequency-Hopping Based SCMA for Massive Connectivity in Multi-cell Networks.
Proceedings of the 94th IEEE Vehicular Technology Conference, 2021

Signal Design with Low/Zero Ambiguity Zone Characteristics for Joint Radar-Communication Systems.
Proceedings of the 10th IEEE/CIC International Conference on Communications in China, 2021

2020
A Compressive Sensing Assisted Massive SM-VBLAST System: Error Probability and Capacity Analysis.
IEEE Trans. Wirel. Commun., 2020

Finite-Length Performance Analysis of LDPC Coded Continuous Phase Modulation.
IEEE Trans. Veh. Technol., 2020

Delayed Bit Interleaved Coded Sparse Code Multiple Access.
IEEE Trans. Veh. Technol., 2020

An Experimental Investigation of Enhanced SM-OFDM Over Indoor Rician Multipath Channels.
IEEE Trans. Veh. Technol., 2020

Pilot Design for BEM-Based Channel Estimation in Doubly Selective Channel.
IEEE Trans. Veh. Technol., 2020

Cross Z-Complementary Pairs for Optimal Training in Spatial Modulation Over Frequency Selective Channels.
IEEE Trans. Signal Process., 2020

New Optimal $Z$-Complementary Code Sets Based on Generalized Paraunitary Matrices.
IEEE Trans. Signal Process., 2020

New Sets of Optimal Odd-Length Binary Z-Complementary Pairs.
IEEE Trans. Inf. Theory, 2020

Low-PMEPR Preamble Sequence Design for Dynamic Spectrum Allocation in OFDMA Systems.
IEEE Trans. Commun., 2020

A Direct and Generalized Construction of Polyphase Complementary Sets With Low PMEPR and High Code-Rate for OFDM System.
IEEE Trans. Commun., 2020

Symmetrical Z-Complementary Code Sets (SZCCSs) for Optimal Training in Generalized Spatial Modulation.
CoRR, 2020

Design of Power-Imbalanced SCMA Codebook.
CoRR, 2020

5G NR-V2X: Towards Connected and Cooperative Autonomous Driving.
CoRR, 2020

Low-Complexity Expectation Propagation Detection for Uplink MIMO-SCMA Systems.
Proceedings of the 2020 International Conference on UK-China Emerging Technologies, 2020

Cross Z-Complementary Pairs (CZCPs) for Optimal Training in Broadband Spatial Modulation Systems.
Proceedings of the IEEE International Symposium on Information Theory, 2020

Rate-Splitting for Overloaded Multigroup Multicast: Error Performance Evaluation.
Proceedings of the 2020 IEEE International Conference on Communications Workshops, 2020

2019
Low-PAPR Preamble Design for FBMC Systems.
IEEE Trans. Veh. Technol., 2019

Energy-Efficient Short Packet Communications for Uplink NOMA-Based Massive MTC Networks.
IEEE Trans. Veh. Technol., 2019

A New Construction Framework for Polyphase Complete Complementary Codes With Various Lengths.
IEEE Trans. Signal Process., 2019

Reliable State Estimation of an Unmanned Aerial Vehicle Over a Distributed Wireless IoT Network.
IEEE Trans. Reliab., 2019

Strong No-Hit-Zone Sequences for Improved Quasi-Orthogonal FHMA Systems: Sequence Design and Performance Analysis.
IEEE Trans. Commun., 2019

Optimal $Z$ -Complementary Code Set From Generalized Reed-Muller Codes.
IEEE Trans. Commun., 2019

Panchromatic image compression based on improved post-transform for space optical remote sensors.
Signal Process., 2019

Cross-Complementary Pairs for Optimal Training in Spatial Modulation over Frequency Selective Channels.
CoRR, 2019

New Optimal Z-Complementary Code Sets from Matrices of Polynomials.
CoRR, 2019

A Direct and Generalized Construction of Polyphase Complementary Set with Low PMEPR and High Code-Rate for OFDM System.
CoRR, 2019

Real-Valued Orthogonal Sequences for Iterative Channel Estimation in MIMO-FBMC Systems.
IEEE Access, 2019

Construction of New Optimal Z-Complementary Code Sets from Z-Paraunitary Matrices.
Proceedings of the Ninth International Workshop on Signal Design and its Applications in Communications, 2019

Near-Optimal Zero Correlation Zone Sequence Sets from Paraunitary Matrices.
Proceedings of the IEEE International Symposium on Information Theory, 2019

A Direct and Generalized Construction of Polyphase Complementary Set With Low PMEPR.
Proceedings of the IEEE International Symposium on Information Theory, 2019

Power-Imbalanced Low-Density Signatures (LDS) From Eisenstein Numbers.
Proceedings of the IEEE VTS Asia Pacific Wireless Communications Symposium, 2019

2018
CPM Training Waveforms With Autocorrelation Sidelobes Close to Zero.
IEEE Trans. Veh. Technol., 2018

Block Pilot Based Channel Estimation and High- Accuracy Signal Detection for GSM-OFDM Systems on High-Speed Railways.
IEEE Trans. Veh. Technol., 2018

A Multiplier-Free Generator for Polyphase Complete Complementary Codes.
IEEE Trans. Signal Process., 2018

Spectrally-Constrained Sequences: Bounds and Constructions.
IEEE Trans. Inf. Theory, 2018

A Novel Class of Complete Complementary Codes and Their Applications for APU Matrices.
IEEE Signal Process. Lett., 2018

New Sets of Even-Length Binary Z-Complementary Pairs With Asymptotic ZCZ Ratio of 3/4.
IEEE Signal Process. Lett., 2018

A Semi-Empirical Performance Study of Two-Hop DSRC Message Relaying at Road Intersections.
Inf., 2018

Low-Complexity Single-Channel Blind Separation of Co-Frequency Coded Signals.
IEEE Commun. Lett., 2018

Unified Power Allocation for Receive Spatial Modulation Based on Approximate Optimization.
IEEE Access, 2018

Practical Implementation of Multi-User Transform Domain Communication System for Control Channels in Cloud-Based Cognitive Radio Networks.
IEEE Access, 2018

TDCS-IDMA System for Cognitive Radio Networks With Cloud.
IEEE Access, 2018

Real-Valued Orthogonal Sequences for Ultra-low Overhead Channel Estimation in MIMO-FBMC Systems.
Proceedings of the Machine Learning and Intelligent Communications, 2018

On the Performance of Single-Channel Source Separation of Two Co-Frequency PSK Signals with Carrier Frequency Offsets.
Proceedings of the 2018 IEEE Military Communications Conference, 2018

Pilot design for channel estimation in Doubly Selective Channel.
Proceedings of the IEEE International Conference on Communication Systems, 2018

Practical Implementation of MIMO-FBMC System.
Proceedings of the Communications, Signal Processing, and Systems, 2018

Development and Performance Evaluation of TDCS Multiple Access System.
Proceedings of the Communications, Signal Processing, and Systems, 2018

2017
An Improved Hybrid Turbo Equalizer for Single Carrier Transmission with Impulsive Noise and ISI.
IEEE Trans. Veh. Technol., 2017

Asymptotically Locally Optimal Weight Vector Design for a Tighter Correlation Lower Bound of Quasi-Complementary Sequence Sets.
IEEE Trans. Signal Process., 2017

Two-Valued Periodic Complementary Sequences.
IEEE Signal Process. Lett., 2017

Adaptive SM-MIMO for mmWave Communications With Reduced RF Chains.
IEEE J. Sel. Areas Commun., 2017

Training Sequence Design for Efficient Channel Estimation in MIMO-FBMC Systems.
IEEE Access, 2017

Single-channel blind separation of co-frequency PSK signals with unknown carrier frequency offsets.
Proceedings of the 2017 IEEE Military Communications Conference, 2017

Doppler resilient Z-complementary waveforms from ESP sequences.
Proceedings of the Eighth International Workshop on Signal Design and Its Applications in Communications, 2017

Sequence design for optimized ambiguity function and PAPR under arbitrary spectrum hole constraint.
Proceedings of the Eighth International Workshop on Signal Design and Its Applications in Communications, 2017

New optimal binary Z-complementary pairs of odd lengths.
Proceedings of the Eighth International Workshop on Signal Design and Its Applications in Communications, 2017

A frequency-domain approach to tightening the generalized levenshtein bound.
Proceedings of the 2017 IEEE International Symposium on Information Theory, 2017

A novel multiplier-free generator for complete complementary codes.
Proceedings of the 23rd Asia-Pacific Conference on Communications, 2017

2016
16-QAM Almost-Complementary Sequences With Low PMEPR.
IEEE Trans. Commun., 2016

Optimal Binary Periodic Almost-Complementary Pairs.
IEEE Signal Process. Lett., 2016

Multi-CRC Polar Codes and Their Applications.
IEEE Commun. Lett., 2016

Sharp Sufficient Conditions for Stable Recovery of Block Sparse Signals by Block Orthogonal Matching Pursuit.
CoRR, 2016

Single-Carrier SM-MIMO: A Promising Design for Broadband Large-Scale Antenna Systems.
IEEE Commun. Surv. Tutorials, 2016

2015
Fractional-Delay-Resilient Receiver Design for Interference-Free MC-CDMA Communications Based on Complete Complementary Codes.
IEEE Trans. Wirel. Commun., 2015

ICI-Resilient Cognitive Radio Sequences for Transform Domain Communication Systems.
Proceedings of the IEEE 82nd Vehicular Technology Conference, 2015

Optimal spectrally-constrained sequences.
Proceedings of the IEEE International Symposium on Information Theory, 2015

2014
A New Weight Vector for a Tighter Levenshtein Bound on Aperiodic Correlation.
IEEE Trans. Inf. Theory, 2014

Optimal Odd-Length Binary Z-Complementary Pairs.
IEEE Trans. Inf. Theory, 2014

A Tighter Correlation Lower Bound for Quasi-Complementary Sequence Sets.
IEEE Trans. Inf. Theory, 2014

New Complete Complementary Codes for Peak-to-Mean Power Control in Multi-Carrier CDMA.
IEEE Trans. Commun., 2014

On Even-Period Binary Z-Complementary Pairs with Large ZCZs.
IEEE Signal Process. Lett., 2014

Sequence Design for Cognitive CDMA Communications under Arbitrary Spectrum Hole Constraint.
IEEE J. Sel. Areas Commun., 2014

A new construction of zero correlation zone sequences from generalized reed-muller codes.
Proceedings of the 2014 IEEE Information Theory Workshop, 2014

2013
Constructions of Optimal and Near-Optimal Quasi-Complementary Sequence Sets from Singer Difference Sets.
IEEE Wirel. Commun. Lett., 2013

New Constructions of General QAM Golay Complementary Sequences.
IEEE Trans. Inf. Theory, 2013

64-QAM complementary sets for high-rate OFDM transmissions.
Proceedings of the Sixth International Workshop on Signal Design and Its Applications in Communications, 2013

Quadratic weight vector for tighter aperiodic Levenshtein bound.
Proceedings of the 2013 IEEE International Symposium on Information Theory, 2013

On optimal binary Z-complementary pair of odd period.
Proceedings of the 2013 IEEE International Symposium on Information Theory, 2013

2012
Meeting the Levenshtein bound with equality by weighted-correlation complementary set.
Proceedings of the 2012 IEEE International Symposium on Information Theory, 2012

2011
Correlation and Set Size Bounds of Complementary Sequences with Low Correlation Zone.
IEEE Trans. Commun., 2011

Improved lower bound for quasi-complementary sequence set.
Proceedings of the 2011 IEEE International Symposium on Information Theory Proceedings, 2011


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