Research

Focused directions

I

Microwave Linear Analog Computer (MiLAC)

7 papers
Figure from Beamforming Design for Stem-Connected Microwave Linear Analog Computer (MiLAC)-Aided Multiuser MISO DownlinksFigure from How Many RF Chains Does a Microwave Linear Analog Computer (MiLAC) Need to Match the Fully-Digital Cramér-Rao Bound?Figure from Quantization-Aware EE Optimization and SE-EE Tradeoff for MiLAC-Aided MU-MISO Beamforming
Representative figures from the papers listed below.

  1. Energy-Efficiency Optimization for MiLAC-Aided MU-MISO Beamforming

    Yuchen Zhang, Pinjun Zheng, Tareq Y. Al-Naffouri

    IEEE SPAWC, 2026

    Scholar

  2. Stem-Connected Microwave Linear Analog Computer (MiLAC)-Aided Multiuser Beamforming via Closed-Form Susceptance Realization

    Yuchen Zhang, Zheyu Wu, Bruno Clerckx, Tareq Y. Al-Naffouri

    Under review, 2026under review

    Scholar

  3. Microwave Linear Analog Computer (MiLAC)-Aided Integrated Sensing and Communication: Transceiver Design and Beamforming Optimization

    Yuchen Zhang, Bruno Clerckx, Tareq Y. Al-Naffouri

    Under review, 2026major revision

    Scholar

  4. Beamforming Design for Stem-Connected Microwave Linear Analog Computer (MiLAC)-Aided Multiuser MISO Downlinks

    Yuchen Zhang, Zheyu Wu, Bruno Clerckx, Tareq Y. Al-Naffouri

    arXiv preprint, 2026under review

    arXivPDF

  5. How Many RF Chains Does a Microwave Linear Analog Computer (MiLAC) Need to Match the Fully-Digital Cramér-Rao Bound?

    Yuchen Zhang, Yu Ge, Bruno Clerckx, Tareq Y. Al-Naffouri

    arXiv preprint, 2026major revision

    arXivPDF

  6. Quantization-Aware EE Optimization and SE-EE Tradeoff for MiLAC-Aided MU-MISO Beamforming

    Yuchen Zhang, Pinjun Zheng, Tareq Y. Al-Naffouri

    IEEE Transactions on Signal Processing, 2026

    arXivPDFDOI

  7. MiLAC Precoding with Multi-Level Power Constraints and Circuit Awareness

    Pinjun Zheng, Yuchen Zhang

    Under review, 2026under review

    Scholar
II

Low-Earth-Orbit (LEO) Satellite Systems

13 papers
Figure from Positioning-Aided Channel Estimation for Multi-LEO Satellite Cooperative BeamformingFigure from Distributed Integrated Sensing, Localization, and Communications Over LEO Satellite ConstellationsFigure from Enabling Scalable Distributed Beamforming via Networked LEO Satellites Toward 6G
Representative figures from the papers listed below.

  1. Positioning-Aided Channel Estimation for Multi-LEO Satellite Cooperative Beamforming

    Yuchen Zhang, Pinjun Zheng, Jie Ma, Henk Wymeersch, Tareq Y. Al-Naffouri

    IEEE Transactions on Communications, 2026

    arXivPDFDOI

  2. Distributed Integrated Sensing, Localization, and Communications Over LEO Satellite Constellations

    Yuchen Zhang, Francis Soualle, Musa Furkan Keskin, Yuan Liu, Linlong Wu, José A. del Peral-Rosado, M. R. Bhavani Shankar, Gonzalo Seco-Granados, Henk Wymeersch, Tareq Y. Al-Naffouri

    IEEE Wireless Communications, 2026

    arXivPDFDOI

  3. Enabling Scalable Distributed Beamforming via Networked LEO Satellites Toward 6G

    Yuchen Zhang, Tareq Y. Al-Naffouri

    IEEE Transactions on Wireless Communications, 2026

    arXivPDFDOI

  4. Space Debris Detection via Inter-Satellite ISAC for LEO Constellations

    Yuan Liu, Yuchen Zhang, Kunwar Pritiraj Rajput, M. R. Bhavani Shankar

    IEEE SPAWC, 2026

    Scholar

  5. LEO-Based Positioning Under Orbital Errors

    Jie Ma, Pinjun Zheng, Xing Liu, Yuchen Zhang, Ali A. Nasir, Tareq Y. Al-Naffouri

    IEEE ICC, 2026

    DOI

  6. Handover-Aware Power Minimization for Networked LEO Satellite Communications: Joint Cooperative Beamforming and Scheduling

    Yuchen Zhang, Eva Lagunas, Symeon Chatzinotas, Tareq Y. Al-Naffouri

    arXiv preprint, 2026under review

    arXivPDF

  7. Decentralized Cooperative Beamforming for Networked LEO Satellites With Statistical CSI

    Yuchen Zhang, Eva Lagunas, Xue Xian Zheng, Symeon Chatzinotas, Tareq Y. Al-Naffouri

    IEEE Transactions on Wireless Communications, 2026

    arXivPDFDOI

  8. Semantic Communication for Multi-Satellite Massive MIMO Transmission: A Mixture of Cooperative Modes Framework

    Yafei Wang, Yuchen Zhang, Yiming Zhu, Vu Nguyen Ha, Rui Ding, Wenjin Wang, Symeon Chatzinotas, Björn Ottersten

    arXiv preprint, 2026major revision

    arXivPDF

  9. Multi-Satellite Multi-Stream Massive MIMO Semantic Communication

    Yafei Wang, Yuchen Zhang, Yiming Zhu, Vu Nguyen Ha, Rui Ding, Wenjin Wang, Symeon Chatzinotas, Björn Ottersten

    IEEE GLOBECOM Workshops, 2026accepted

    Scholar

  10. Integrated Positioning and Communication for Cooperative Multi-LEO Uplink Communications: A Dual-Timescale Kalman Filter-Aided Approach

    Ali Hanif, Yuchen Zhang, Pinjun Zheng, Tareq Y. Al-Naffouri

    arXiv preprint, 2026minor revision

    arXivPDF

  11. Positioning Using LEO Satellite Communication Signals Under Orbital Errors

    Jie Ma, Pinjun Zheng, Xing Liu, Yuchen Zhang, Ali A. Nasir, Tareq Y. Al-Naffouri

    arXiv preprint, 2026under review

    arXivPDF

  12. Integrated Positioning and Communication via LEO Satellites: A Contemporary Overview

    Jie Ma, Pinjun Zheng, Xing Liu, Yuchen Zhang, Tareq Y. Al-Naffouri

    npj Wireless Technology, 2026

    arXivPDFDOI

  13. Multi-LEO Positioning with Clock Bias and CFO

    Yuchen Zhang, Pinjun Zheng, Jie Ma, Henk Wymeersch, Tareq Y. Al-Naffouri

    IEEE ISAC, 2026accepted

    Scholar
III

Reconfigurable, Movable, and Fluid Antenna Systems

21 papers
Figure from Hybrid Codebook Design for Localization Using Electromagnetically Reconfigurable Fluid Antenna SystemFigure from A Deep Learning Framework for Joint Channel Acquisition and Communication Optimization in Movable Antenna SystemsFigure from A Survey on Reconfigurable and Movable Antennas for Wireless Communications and Sensing
Representative figures from the papers listed below.

  1. Tri-Hybrid Multi-User Precoding Using Pattern-Reconfigurable Antennas: Fundamental Models and Practical Algorithms

    Pinjun Zheng, Yuchen Zhang, Tareq Y. Al-Naffouri, Md. Jahangir Hossain, Anas Chaaban

    IEEE Transactions on Communications, 2026

    arXivPDFDOI

  2. Secure Broadcast Transmission Based on Fluid and Reconfigurable Antennas

    Jiangong Chen, Xia Lei, Kaitao Meng, Hong Niu, Yuchen Zhang

    SCIENTIA SINICA Informationis, 2026accepted

    DOI

  3. Joint Localization and Channel Estimation Framework for FA-RIS-Assisted ISAC

    Lechen Zhang, Xia Lei, Hong Niu, Teng Ma, Yuchen Zhang, Yu Ge, George K. Karagiannidis, Henk Wymeersch

    IEEE Transactions on Cognitive Communications and Networking, 2026

    DOI

  4. Holographic Intelligence Surface Assisted Integrated Sensing and Communication

    Zhuoyang Liu, Yuchen Zhang, Haiyang Zhang, Feng Xu, Yonina C. Eldar

    IEEE Transactions on Signal Processing, 2026

    arXivPDFDOI

  5. Hybrid Codebook Design for Localization Using Electromagnetically Reconfigurable Fluid Antenna System

    Alireza Fadakar, Yuchen Zhang, Hui Chen, Musa Furkan Keskin, Henk Wymeersch, Andreas F. Molisch

    IEEE Journal of Selected Topics in Signal Processing, 2026

    arXivPDFDOI

  6. A Deep Learning Framework for Joint Channel Acquisition and Communication Optimization in Movable Antenna Systems

    Ruizhi Zhang, Yuchen Zhang, Lipeng Zhu, Ying Zhang, Rui Zhang

    IEEE Transactions on Wireless Communications, 2026

    arXivPDFDOI

  7. A Survey on Reconfigurable and Movable Antennas for Wireless Communications and Sensing

    Wenyan Ma, Lipeng Zhu, Yanhua Tan, Beixiong Zheng, Yujie Zhang, Yuchen Zhang, Keke Ying, Zhen Gao, He Sun, Xiaodan Shao, Zhenyu Xiao, Dusit Niyato, Rui Zhang

    IEEE Communications Surveys & Tutorials, 2026

    arXivPDFDOI

  8. Movable Antenna-Aided Hybrid Beamforming for Multi-User Communications

    Yichi Zhang, Yuchen Zhang, Lipeng Zhu, Sa Xiao, Wanbin Tang, Yonina C. Eldar, Rui Zhang

    IEEE Transactions on Vehicular Technology, 2025

    arXivPDFDOI

  9. User Localization via Active Sensing with Electromagnetically Reconfigurable Antennas

    Ruizhi Zhang, Yuchen Zhang, Ying Zhang

    IEEE SAM, 2026

    arXivPDF

  10. 6DMA-aided Multiple Access Point Coordination: Two-timescale Decentralized Beamforming and Antenna Movement Optimization

    Yichi Zhang, Yuchen Zhang, Lipeng Zhu, Jianquan Wang, Wanbin Tang, Rui Zhang

    IEEE ICC Workshops, 2026

    DOI

  11. Near-field Localization via Reconfigurable Antennas

    Alireza Fadakar, Yuchen Zhang, Hui Chen, Musa Furkan Keskin, Henk Wymeersch, Andreas F. Molisch

    IEEE ICC, 2026

    arXivPDFDOI

  12. Integrated Sensing and Communication with Tri-Hybrid Beamforming Across Electromagnetically Reconfigurable Antennas

    Jiangong Chen, Xia Lei, Yuchen Zhang, Kaitao Meng, Christos Masouros

    IEEE ICC, 2026

    arXivPDFDOI

  13. Learning-Based Joint Channel Acquisition and Communication Optimization for Movable Antennas

    Ruizhi Zhang, Yuchen Zhang, Lipeng Zhu, Ying Zhang, Rui Zhang

    IEEE ICC, 2026

    DOI

  14. Sum-Rate Maximization for DMA-Based Wideband Near-Field Systems With Lorentzian Responses

    Ruizhi Zhang, Haiyang Zhang, Yuchen Zhang, Hang Ruan, Honglei Chen, Yonina C. Eldar

    IEEE ICASSP, 2026

    DOI

  15. Tri-Hybrid Multi-User Precoding Based on Electromagnetically Reconfigurable Antennas

    Pinjun Zheng, Yuchen Zhang, Tareq Y. Al-Naffouri, Md. Jahangir Hossain, Anas Chaaban

    IEEE GLOBECOM Workshops, 2025

    arXivPDFDOI

  16. 6D Movable Antenna-Aided Hybrid Beamforming for Multi-User Communications

    Yichi Zhang, Yuchen Zhang, Sa Xiao, Wanbin Tang, Yonina C. Eldar

    IEEE GLOBECOM Workshops, 2024

    arXivPDFDOI

  17. Multi-User Localization via Active Sensing with Electromagnetically Reconfigurable Antennas

    Ruizhi Zhang, Yuchen Zhang, Ying Zhang, Henk Wymeersch

    Under review, 2026under review

    Scholar

  18. Tri-Hybrid Beamforming Design for ISAC Systems with Reconfigurable Antennas

    Jiangong Chen, Xia Lei, Yuchen Zhang, Kaitao Meng, Christos Masouros

    arXiv preprint, 2026major revision

    arXivPDF

  19. Reconfigurable Antennas for Next-Generation Wireless Communications: Technologies, Prototypes, Architectures, and Signal Processing

    Pinjun Zheng, Ruiqi Wang, Yuchen Zhang, Md. Jahangir Hossain, Anas Chaaban, Atif Shamim, Tareq Y. Al-Naffouri

    IEEE Antennas and Propagation Magazine, 2026accepted

    arXivPDF

  20. 6D Movable Antenna Enhanced Cell-free MIMO: Two-timescale Decentralized Beamforming and Antenna Movement Optimization

    Yichi Zhang, Yuchen Zhang, Wenyan Ma, Lipeng Zhu, Jianquan Wang, Wanbin Tang, Rui Zhang

    arXiv preprint, 2026major revision

    arXivPDF

  21. 6DMA-Aided Hybrid Beamforming with Joint Antenna Position and Orientation Optimization

    Yichi Zhang, Yuchen Zhang, Lipeng Zhu, Sa Xiao, Wanbin Tang, Yonina C. Eldar, Rui Zhang

    arXiv preprint, 2026under review

    arXivPDF