Witold A. Krzymien

ORCID

Publication Activity (10 Years)

Years Active: 1988-2023
Publications (10 Years): 21

Top Venues

IEEE Trans. Veh. Technol.

ACSSC

CoRR

VTC Fall

Publications

Bitan Banerjee, Robert C. Elliott, Witold A. Krzymien, Hamid Farmanbar
Downlink Channel Estimation for FDD Massive MIMO Using Conditional Generative Adversarial Networks. IEEE Trans. Wirel. Commun. 22 (1) (2023)
Mahtab Ataeeshojai, Robert C. Elliott, Witold A. Krzymien, Chintha Tellambura, Ivo Maljevic
Symbiotic Backscatter Communication Underlying a Cell-Free Massive MIMO System. IEEE Internet Things J. 10 (19) (2023)
Ferhad Kasem, Karumudi Rambabu, Ashwin K. Iyer, Witold A. Krzymien
A Reduced-Complexity Load-Modulated MIMO Transmitter Readily Scalable in 5G Massive MIMO Transmitters. IEEE Trans. Circuits Syst. II Express Briefs 70 (8) (2023)
Mahtab Ataeeshojai, Robert C. Elliott, Witold A. Krzymien, Chintha Tellambura, Ivo Maljevic
Iterative Matrix Inversion Methods for Precoding in Cell-Free Massive MIMO Systems. IEEE Trans. Veh. Technol. 71 (11) (2022)
Bitan Banerjee, Robert C. Elliott, Witold A. Krzymien, Mostafa Medra
Machine Learning Assisted DL CSI Estimation for High-Mobility Multi-Antenna Users with Partial UL CSI Availability in TDD Massive MIMO Systems. GLOBECOM (Workshops) (2022)
Bitan Banerjee, Robert C. Elliott, Witold A. Krzymien, Hamid Farmanbar
Towards FDD Massive MIMO: Downlink Channel Covariance Matrix Estimation Using Conditional Generative Adversarial Networks. PIMRC (2021)
Maliheh Soleimani, Robert C. Elliott, Witold A. Krzymien, Jordan Melzer, Pedram Mousavi
Hybrid Beamforming for mmWave Massive MIMO Systems Employing DFT-Assisted User Clustering. IEEE Trans. Veh. Technol. 69 (10) (2020)
Chenmeng Wang, Robert C. Elliott, Daquan Feng, Witold A. Krzymien, Shengli Zhang, Jordan Melzer
A Framework for MEC-Enhanced Small-Cell HetNet with Massive MIMO. IEEE Wirel. Commun. 27 (4) (2020)
Mahtab Ataeeshojai, Robert C. Elliott, Witold A. Krzymien, Chintha Tellambura, Jordan Melzer
Energy-Efficient Resource Allocation in Single-RF Load-Modulated Massive MIMO HetNets. IEEE Open J. Commun. Soc. 1 (2020)
Bitan Banerjee, Robert C. Elliott, Witold A. Krzymien, Jordan Melzer
Correlated Placement of Small Cell Base Stations: A Coverage Enriched HetNet with Massive MIMO. VTC Spring (2020)
Maliheh Soleimani, Mahmood Mazrouei-Sebdani, Robert C. Elliott, Witold A. Krzymien, Jordan Melzer
Simplified User Grouping Algorithm for Massive MIMO on Sparse Beam-Space Channels. IEICE Trans. Commun. (3) (2019)
Prasanna Herath, Chintha Tellambura, Witold A. Krzymien
Coverage probability analysis of three uplink power control schemes: Stochastic geometry approach. EURASIP J. Wirel. Commun. Netw. 2018 (2018)
Chunlin Chen, Robert C. Elliott, Witold A. Krzymien
Empirical Distribution of Nearest-Transmitter Distance in Wireless Networks Modeled by Matérn Hard Core Point Processes. IEEE Trans. Veh. Technol. 67 (2) (2018)
Hakimeh Purmehdi, Robert C. Elliott, Witold A. Krzymien, Jordan Melzer
Rotating cluster mechanism for coordinated heterogeneous MIMO cellular networks. EURASIP J. Wirel. Commun. Netw. 2018 (2018)
Chunlin Chen, Robert C. Elliott, Witold A. Krzymien, Jordan Melzer
Modeling of Cellular Networks Using Stationary and Nonstationary Point Processes. IEEE Access 6 (2018)
Maliheh Soleimani, Mahmood Mazrouei-Sebdani, Robert C. Elliott, Witold A. Krzymien, Jordan Melzer
Robust precoder design for massive MIMO with peak total power constrained single-RF-chain transmitters. IET Commun. 11 (17) (2017)
Maliheh Soleimani, Robert C. Elliott, Witold A. Krzymien, Jordan Melzer, Pedram Mousavi
Hybrid beamforming and DFT-based channel estimation for millimeter wave MIMO systems. PIMRC (2017)
Mahmood Mazrouei-Sebdani, Witold A. Krzymien, Jordan Melzer
Massive MIMO With Nonlinear Precoding: Large-System Analysis. IEEE Trans. Veh. Technol. 65 (4) (2016)
Prasanna Herath, Witold A. Krzymien, Chintha Tellambura
Coverage and Rate Analysis for Limited Information Cell Association in Stochastic-Layout Cellular Networks. IEEE Trans. Veh. Technol. 65 (9) (2016)
Maliheh Soleimani, Mahmood Mazrouei-Sebdani, Witold A. Krzymien, Jordan Melzer
A path selection algorithm for sparse massive MIMO channels. ACSSC (2016)
Hakimeh Purmehdi, Robert C. Elliott, Witold A. Krzymien
Reduced-Complexity User Scheduling Algorithms for Coordinated Heterogeneous MIMO Networks. IEEE Trans. Veh. Technol. 65 (8) (2016)
Godfrey O. Okeke, Witold A. Krzymien, Yindi Jing, Jordan Melzer
A Novel Low-Complexity Joint User-Relay Selection and Association for Multi-User Multi-Relay MIMO Uplink. IEEE Wirel. Commun. Lett. 4 (3) (2015)
Prasanna Herath, Chintha Tellambura, Witold A. Krzymien
Stochastic Geometry Modeling of Cellular Uplink Power Control under Composite Rayleigh-Lognormal Fading. VTC Fall (2015)
Hakimeh Purmehdi, Robert C. Elliott, Witold A. Krzymien, Jordan Melzer
Rotating clustering with simulated annealing user scheduling for coordinated heterogeneous MIMO cellular networks. ICC (2014)
Hakimeh Purmehdi, Robert C. Elliott, Witold A. Krzymien, Jordan Melzer
Effect of cluster rotation speed in coordinated heterogeneous MIMO cellular networks with proportionally fair user scheduling. ACSSC (2014)
Prasanna Herath, Witold A. Krzymien, Chintha Tellambura
A Novel Base Stations-Mobile Stations Association Policy for Cellular Networks. VTC Fall (2014)
Shreeram Sigdel, Witold A. Krzymien
Low Complexity User Scheduling, Ordering and Transmit Covariance Matrix Optimization Algorithms for Successive Zero-Forcing Precoding. Wirel. Pers. Commun. 75 (4) (2014)
Chunlin Chen, Robert C. Elliott, Witold A. Krzymien
Downlink coverage analysis of n-tier heterogeneous cellular networks based on clustered stochastic geometry. ACSSC (2013)
Mohsen Eslami, Robert C. Elliott, Witold A. Krzymien, Mazin Al-Shalash
Location-assisted clustering and scheduling for coordinated homogeneous and heterogeneous cellular networks. Trans. Emerg. Telecommun. Technol. 24 (1) (2013)
Marcin M. Misiewicz, Robert C. Elliott, Kevin R. Jacobson, Witold A. Krzymien
Eigenmode Scheduling via Simulated Annealing for Multiuser MIMO Downlink with Successive Zero-Forcing Precoding. ISWCS (2013)
Mahmood Mazrouei-Sebdani, Witold A. Krzymien
On MMSE Vector-Perturbation Precoding for MIMO Broadcast Channels With Per-Antenna-Group Power Constraints. IEEE Trans. Signal Process. 61 (15) (2013)
Godfrey O. Okeke, Witold A. Krzymien, Yindi Jing
Distributed beamforming in multi-cell cooperative MIMO Cellular Networks with non-regenerative relays: An LTE-Advanced framework. GLOBECOM (2013)
Saeed Kaviani, Osvaldo Simeone, Witold A. Krzymien, Shlomo Shamai
Linear Precoding and Equalization for Network MIMO with Partial Cooperation CoRR (2013)
Saeed Kaviani, Witold A. Krzymien
Robust Joint Precoder and Equalizer Design in MIMO Communication Systems CoRR (2013)
Mahmood Mazrouei-Sebdani, Witold A. Krzymien
Massive MIMO with clustered pilot contamination precoding. ACSSC (2013)
Saeed Kaviani, Witold A. Krzymien
Optimal Multiuser Zero-Forcing with Per-Antenna Power Constraints for Network MIMO Coordination CoRR (2013)
Saeed Kaviani, Witold A. Krzymien
Robust joint precoder and equalizer design in MIMO communication systems. WCNC (2012)
Saeed Kaviani, Osvaldo Simeone, Witold A. Krzymien, Shlomo Shamai
Linear Precoding and Equalization for Network MIMO With Partial Cooperation. IEEE Trans. Veh. Technol. 61 (5) (2012)
Hakimeh Purmehdi, Robert C. Elliott, Witold A. Krzymien
Simulated annealing user scheduling for coordinated heterogeneous MIMO networks. ACSCC (2012)
Mahmood Mazrouei-Sebdani, Witold A. Krzymien
On MMSE vector-perturbation precoding for MIMO broadcast channels with per-antenna-group power constraints. ICC (2012)
Mahmood Mazrouei-Sebdani, Witold A. Krzymien
Sum Rate of p-Sphere Encoding for MIMO Broadcast Channels with Reduced Peak Power. VTC Spring (2012)
Siva D. Muruganathan, Witold A. Krzymien, Abu B. Sesay
A Null-Subcarrier-Aided Reference Symbol Mapping Scheme for 3GPP LTE Downlink in High-Mobility Scenarios. IEEE Trans. Veh. Technol. 61 (2) (2012)
Shreeram Sigdel, Witold A. Krzymien, Mazin Al-Shalash
Greedy and progressive user scheduling for CoMP wireless networks. ICC (2012)
Robert C. Elliott, Shreeram Sigdel, Witold A. Krzymien
Low complexity greedy, genetic and hybrid user scheduling algorithms for multiuser MIMO systems with successive zero-forcing. Trans. Emerg. Telecommun. Technol. 23 (7) (2012)
Godfrey O. Okeke, Witold A. Krzymien, Yindi Jing
Beamforming in Non-Regenerative MIMO Broadcast Relay Networks. IEEE Trans. Signal Process. 60 (12) (2012)
Mahmood Mazrouei-Sebdani, Witold A. Krzymien
Vector Perturbation Precoding for Network MIMO: Sum Rate, Fair User Scheduling, and Impact of Backhaul Delay. IEEE Trans. Veh. Technol. 61 (9) (2012)
Godfrey O. Okeke, Yindi Jing, Witold A. Krzymien
Beamforming in MIMO broadcast relay networks with multiple antenna users. ACSCC (2011)
Robert C. Elliott, Witold A. Krzymien
Improved and weighted sum rate maximization for successive zero-forcing in multiuser MIMO systems. EURASIP J. Wirel. Commun. Netw. 2011 (2011)
Mahmood Mazrouei-Sebdani, Witold A. Krzymien
Vector perturbation precoding and user scheduling for network MIMO. WCNC (2011)
Kevin R. Jacobson, Witold A. Krzymien
Multihop relaying and multiple antenna techniques: performance trade-offs in cellular systems. EURASIP J. Wirel. Commun. Netw. 2011 (2011)
Mohsen Eslami, Witold A. Krzymien
Net Throughput Maximization of Per-Chunk User Scheduling for MIMO-OFDM Downlink. IEEE Trans. Veh. Technol. 60 (9) (2011)
Robert C. Elliott, Witold A. Krzymien
Correction to "Downlink Scheduling via Genetic Algorithms for Multiuser Single-Carrier and Multicarrier MIMO Systems With Dirty Paper Coding" [Sep 09 3247-3262]. IEEE Trans. Veh. Technol. 60 (4) (2011)
Saeed Kaviani, Witold A. Krzymien
Optimal Multiuser Zero Forcing with Per-Antenna Power Constraints for Network MIMO Coordination. EURASIP J. Wirel. Commun. Netw. 2011 (2011)
Saeed Kaviani, Osvaldo Simeone, Witold A. Krzymien, Shlomo Shamai
Linear MMSE Precoding and Equalization for Network MIMO with Partial Cooperation. GLOBECOM (2011)
Robert C. Elliott, Witold A. Krzymien
On the Convergence of Genetic Scheduling Algorithms for Downlink Transmission in Multi-User MIMO Systems. Wirel. Pers. Commun. 58 (3) (2011)
Shreeram Sigdel, Witold A. Krzymien
User Scheduling for Network MIMO Systems with Successive Zero-Forcing Precoding. VTC Fall (2010)
Chunlong Bai, Witold A. Krzymien, Ivan J. Fair
Hybrid-arq for layered space time MIMO systems with channel state information only at the receiver. IET Commun. 4 (14) (2010)
Shreeram Sigdel, Witold A. Krzymien
Antenna and User Subset Selection in Downlink Multiuser Orthogonal Space-Division Multiplexing. Wirel. Pers. Commun. 52 (1) (2010)
Yu Fu, Witold A. Krzymien, Chintha Tellambura
Covariance precoding schemes for MIMO OFDM over transmit-antenna and path-correlated channels. Eur. Trans. Telecommun. 21 (7) (2010)
Bartosz Mielczarek, Witold A. Krzymien
Comparison of Partial CSI Encoding Methods in Multi-User MIMO Systems. Wirel. Pers. Commun. 52 (1) (2010)
Mohsen Eslami, Witold A. Krzymien
Efficient Transmission Schemes for Multiuser MIMO Downlink with Linear Receivers and Partial Channel State Information. EURASIP J. Wirel. Commun. Netw. 2010 (2010)
Mohsen Eslami, Witold A. Krzymien
An efficient low-complexity detector for spatially multiplexed MC-CDM. IEEE Trans. Signal Process. 58 (8) (2010)
Siva D. Muruganathan, Abu B. Sesay, Witold A. Krzymien
Analytical query response time evaluation for a two-level clustering hierarchy based wireless sensor network routing protocol. IEEE Commun. Lett. 14 (5) (2010)
Zhengang Chen, Tyler L. Brandon, Duncan G. Elliott, Stephen Bates, Witold A. Krzymien, Bruce F. Cockburn
Jointly Designed Architecture-Aware LDPC Convolutional Codes and High-Throughput Parallel Encoders/Decoders. IEEE Trans. Circuits Syst. I Regul. Pap. (4) (2010)
Siva D. Muruganathan, Witold A. Krzymien, Abu B. Sesay
Null Sub-Carrier Aided Reference Symbol Mapping for Improved Channel Estimation in 3GPP LTE Downlink. VTC Spring (2010)
Arash Talebi, Witold A. Krzymien
Cooperative MIMO multiple-relay system with optimised beamforming and power allocation. IET Commun. 4 (14) (2010)
Saeed Kaviani, Witold A. Krzymien
Multicell Scheduling in Network MIMO. GLOBECOM (2010)
Shreeram Sigdel, Witold A. Krzymien
Simplified Fair Scheduling and Antenna Selection Algorithms for Multiuser MIMO Orthogonal Space-Division Multiplexing Downlink. IEEE Trans. Veh. Technol. 58 (3) (2009)
Bartosz Mielczarek, Witold A. Krzymien
Adaptive CSI Prediction in Linear Multi-User MIMO Systems. VTC Fall (2009)
Shreeram Sigdel, Robert C. Elliott, Witold A. Krzymien, Mazin Al-Shalash
Greedy and Genetic User Scheduling Algorithms for Multiuser MIMO Systems with Block Diagonalization. VTC Fall (2009)
Saeed Kaviani, Witold A. Krzymien
On the Optimality of Multiuser Zero-Forcing Precoding in MIMO Broadcast Channels. VTC Spring (2009)
Mohsen Eslami, Witold A. Krzymien
Limited-Feedback Multiuser MIMO-OFDM Downlink with Spatial Multiplexing and Per-Chunk/Per-Antenna User Scheduling. MCSS (2009)
Arash Talebi, Witold A. Krzymien
Multiple-antenna multiple-relay system with precoding for multiuser transmission. IWCMC (2009)
Kevin R. Jacobson, Witold A. Krzymien
System Design and Throughput Analysis for Multihop Relaying in Cellular Systems. IEEE Trans. Veh. Technol. 58 (8) (2009)
Boon Chin Lim, Witold A. Krzymien, Christian Schlegel
Efficient Sum Rate Maximization and Resource Allocation in Block-Diagonalized Space-Division Multiplexing. IEEE Trans. Veh. Technol. 58 (1) (2009)
Shreeram Sigdel, Witold A. Krzymien
Simplified user scheduling and mode selection algorithm for multiuser MIMO systems with limited-feedback CSIT linear precoding. IWCMC (2009)
Yu Fu, Witold A. Krzymien, Chintha Tellambura
Precoding for Orthogonal Space-Time Block-Coded OFDM Downlink: Mean or Covariance Feedback? IEEE Trans. Veh. Technol. 58 (7) (2009)
Shreeram Sigdel, Witold A. Krzymien
Efficient User Selection and Ordering Algorithms for Successive Zero-Forcing Precoding for Multiuser MIMO Downlink. VTC Spring (2009)
Ge Li, Ivan J. Fair, Witold A. Krzymien
Density Evolution for Nonbinary LDPC Codes Under Gaussian Approximation. IEEE Trans. Inf. Theory 55 (3) (2009)
Kevin R. Jacobson, Witold A. Krzymien
Cooperative vs multihop relaying in cellular systems. PIMRC (2009)
Mohsen Eslami, Witold A. Krzymien
Performance of spatially multiplexed MC-CDM with zero-forcing unified successive interference cancellation detection. IET Commun. 3 (8) (2009)
Robert C. Elliott, Witold A. Krzymien
Downlink Scheduling via Genetic Algorithms for Multiuser Single-Carrier and Multicarrier MIMO Systems With Dirty Paper Coding. IEEE Trans. Veh. Technol. 58 (7) (2009)
Mohsen Eslami, Witold A. Krzymien
Downlink Limited Feedback Transmission Schemes for Asymmetric MIMO Channels. VTC Fall (2008)
Saeed Kaviani, Witold A. Krzymien
Sum Rate Maximization of MIMO Broadcast Channels with Coordination of Base Stations. WCNC (2008)
Yu Fu, Chintha Tellambura, Witold A. Krzymien
Limited-Feedback Precoding for Closed-Loop Multiuser MIMO OFDM Systems with Frequency Offsets. IEEE Trans. Wirel. Commun. 7 (11-1) (2008)
Boon Chin Lim, Witold A. Krzymien, Christian Schlegel
Simultaneous Feedback Reduction and Sum Rate Maximization in Block-Diagonalized Space-Division Multiplexing. VTC Spring (2008)
Saeed Kaviani, Witold A. Krzymien
User Selection for Multiple-Antenna Broadcast Channel with Zero-Forcing Beamforming. GLOBECOM (2008)
Jia Liu, Witold A. Krzymien
A Novel Nonlinear Joint Transmitter-Receiver Processing Algorithm for the Downlink of Multiuser MIMO Systems. IEEE Trans. Veh. Technol. 57 (4) (2008)
Arash Talebi, Witold A. Krzymien
Multiple-Antenna Multiple-Relay Cooperative Communication System with Beamforming. VTC Spring (2008)
Chunlong Bai, Bartosz Mielczarek, Ivan J. Fair, Witold A. Krzymien
Sub-Block Recovery Scheme for Iterative Decoding of Turbo Codes with the Sub-Block Structure. IEICE Trans. Commun. (5) (2008)
Bartosz Mielczarek, Witold A. Krzymien
Adaptive Hybrid ARQ Systems With BCJR Decoding. IEEE Trans. Veh. Technol. 57 (3) (2008)
Maged Elkashlan, Zhuo Chen, Iain B. Collings, Witold A. Krzymien
Selection based resource allocation for decentralized multi-user communications. Phys. Commun. 1 (3) (2008)
Mohsen Eslami, Witold A. Krzymien
Scheduling for MIMO Broadcast Channels with Linear Receivers and Partial Channel State Information. VTC Spring (2008)
Maged Elkashlan, Iain B. Collings, Zhuo Chen, Witold A. Krzymien
Decentralized Dynamic Allocation of Subchannels in Multiple Access Networks. IEEE Commun. Lett. 12 (10) (2008)
Kevin R. Jacobson, Witold A. Krzymien
Multi-Hop Relaying and MIMO Techniques in Cellular Systems - Throughput Achievable on Rayleigh/Ricean Channels. GLOBECOM (2008)
Yu Fu, Witold A. Krzymien, Chintha Tellambura
A Technique for Multiuser and Intercarrier Interference Reduction in Multiple-Antenna Multiuser OFDM Downlink. IEEE Trans. Wirel. Commun. 6 (10) (2007)
Robert C. Elliott, Witold A. Krzymien
Downlink Scheduling for Multiple Antenna Multi-Carrier Systems with Dirty Paper Coding Via Genetic Algorithms. MCSS (2007)
Bartosz Mielczarek, Witold A. Krzymien
Influence of CSI Feedback Errors on Capacity of Linear Multi-User MIMO Systems. VTC Spring (2007)
Yu Fu, Chintha Tellambura, Witold A. Krzymien
Precoding for Multiuser Orthogonal Space-Time Block-Coded OFDM Downlink over Spatially-Correlated Channels. WCNC (2007)
Yu Fu, Chintha Tellambura, Witold A. Krzymien
Transmitter Precoding for ICI Reduction in Closed-Loop MIMO OFDM Systems. IEEE Trans. Veh. Technol. 56 (1) (2007)

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Publication Activity (10 Years)

Top Topics

Top Venues

Witold A. Krzymien