activity
20192025
most citedAn Overview of Signal Processing Techniques for RIS/IRS-aided Wireless Systems

792 citations · 2.1k across the 24 of their papers we have counts for

collaborators

26 papers

cs.IT2025

A Framework for Uplink ISAC Receiver Designs: Performance Analysis and Algorithm Development

Zhiyuan Yu, Hong Ren, Cunhua Pan +3

Uplink integrated sensing and communication (ISAC) systems have recently emerged as a promising research direction, enabling simultaneous uplink signal detection and target sensing…

cs.IT2024

Addressing the Mutual Interference in Uplink ISAC Receivers: A Projection Method

Zhiyuan Yu, Hong Ren, Cunhua Pan +4

Dual function radar and communication (DFRC) is a promising research direction within integrated sensing and communication (ISAC), improving hardware and spectrum efficiency by mer…

eess.SP2024★ 1 cited

Beamforming Design for Double-Active-RIS-aided Communication Systems with Inter-Excitation

Boshi Wang, Cunhua Pan, Hong Ren +4

In this paper, we investigate a double-active-reconfigurable intelligent surface (RIS)-aided downlink wireless communication system, where a multi-antenna base station (BS) serves…

cs.IT2024★ 1 cited

Channel Estimation for mmWave MIMO-OFDM Systems in High-Mobility Scenarios: Instantaneous Model or Statistical Model?

Ruizhe Wang, Hong Ren, Cunhua Pan +3

Classical linear statistical models, like the first-order auto-regressive (AR) model, are commonly used as channel model in high-mobility scenarios. However, compared to sub-6G, th…

eess.SP2024

Reconfigurable Intelligent Surface-Aided Dual-Function Radar and Communication Systems With MU-MIMO Communication

Yasheng Jin, Hong Ren, Cunhua Pan +6

In this paper, we investigate an reconfigurable intelligent surface (RIS)-aided integrated sensing and communication (ISAC) system. Our objective is to maximize the achievable sum…

cs.IT2023★ 1 cited

A Framework for Transmission Design for Active RIS-Aided Communication with Partial CSI

Gui Zhou, Cunhua Pan, Hong Ren +4

Active reconfigurable intelligent surfaces (RISs) have recently been proposed to compensate for the severe multiplicative fading effect of conventional passive RIS-aided systems. E…

cs.IT2023★ 1 cited

Active RIS Aided ISAC Systems: Beamforming Design and Performance Analysis

Zhiyuan Yu, Hong Ren, Cunhua Pan +4

This paper considers an active reconfigurable intelligent surface (RIS)-aided integrated sensing and communication (ISAC) system. We aim to maximize radar signal-to-interference-pl…

eess.SP2022★ 2 cited

A Framework for Mutual Information-based MIMO Integrated Sensing and Communication Beamforming Design

Jin Li, Gui Zhou, Tantao Gong +1

Integrated sensing and communication (ISAC) unifies sensing and communication, and improves the efficiency of the spectrum, energy, and hardware. In this work, we investigate the I…

eess.SP2022

Error Propagation and Overhead Reduced Channel Estimation for RIS-Aided Multi-User mmWave Systems

Zhendong Peng, Cunhua Pan, Gui Zhou +1

In this paper, we propose a novel two-stage based uplink channel estimation strategy with reduced pilot overhead and error propagation for a reconfigurable intelligent surface (RIS…

cs.IT2022★ 7 cited

MSE-Based Transceiver Designs for RIS-Aided Communications With Hardware Impairments

Jingwen Zhao, Ming Chen, Cunhua Pan +3

It is challenging to precisely configure the phase shifts of the reflecting elements at the reconfigurable intelligent surface (RIS) due to inherent hardware impairments (HIs). In…

eess.SP2022★ 3 cited

Channel Estimation for RIS-Aided Multi-User mmWave Systems with Uniform Planar Arrays

Zhendong Peng, Gui Zhou, Cunhua Pan +4

In this paper, we adopt a three-stage based uplink channel estimation protocol with reduced pilot overhead for an reconfigurable intelligent surface (RIS)-aided multi-user (MU) mil…

cs.IT2022

Robust Transmission Design for RIS-assisted Secure Multiuser Communication Systems in the Presence of Hardware Impairments

Zhangjie Peng, Ruisong Weng, Cunhua Pan +3

This paper investigates reconfigurable intelligent surface (RIS)-assisted secure multiuser communication systems subject to hardware impairments (HIs). We jointly optimize the beam…

eess.SP2021★ 792 cited

An Overview of Signal Processing Techniques for RIS/IRS-aided Wireless Systems

Cunhua Pan, Gui Zhou, Kangda Zhi +8

In the past as well as present wireless communication systems, the wireless propagation environment is regarded as an uncontrollable black box that impairs the received signal qual…

cs.IT2021

Robust Transmission Design for RIS-Aided Communications with Both Transceiver Hardware Impairments and Imperfect CSI

Zhangjie Peng, Zhiwei Chen, Cunhua Pan +2

Reconfigurable intelligent surface (RIS) or intelligent reflecting surface (IRS) has recently been envisioned as one of the most promising technologies in the future sixth-generati…

cs.IT2021★ 4 cited

Is RIS-Aided Massive MIMO Promising with ZF Detectors and Imperfect CSI?

Kangda Zhi, Cunhua Pan, Gui Zhou +3

This paper provides a theoretical framework for understanding the performance of reconfigurable intelligent surface (RIS)-aided massive multiple-input multiple-output (MIMO) with z…

cs.IT2021

Channel Estimation with Reconfigurable Intelligent Surfaces -- A General Framework

A. Lee Swindlehurst, Gui Zhou, Rang Liu +2

Optimally extracting the advantages available from reconfigurable intelligent surfaces (RISs) in wireless communications systems requires estimation of the channels to and from the…

eess.SP2021★ 326 cited

Channel Estimation for RIS-Aided Multiuser Millimeter-Wave Systems

Gui Zhou, Cunhua Pan, Hong Ren +2

Channel estimation in the RIS-aided massive multiuser multiple-input single-output (MU-MISO) wireless communication systems is challenging due to the passive feature of RIS and the…

cs.IT2020★ 4 cited

Secure Wireless Communication in RIS-Aided MISO Systems with Hardware Impairments

Gui Zhou, Cunhua Pan, Hong Ren +2

In practice, residual transceiver hardware impairments inevitably lead to distortion noise which causes the performance loss. In this paper, we study the robust transmission design…

cs.IT2020★ 4 cited

Fairness-Oriented Multiple RISs-Aided MmWave Transmission: Stochastic Optimization Methods

Gui Zhou, Cunhua Pan, Hong Ren +2

In millimeter wave (mmWave) systems, it is challenging to ensure the reliable connectivity of communications due to its sensitivity to the presence of blockages. In order to improv…

eess.SP2020

Outage Constrained Robust Transmission Design for IRS-aided Secure Communications with Direct Communication Links

Sheng Hong, Cunhua Pan, Gui Zhou +2

In this paper, we investigate the robust outage constrained transmission design for an intelligent reflecting surface (IRS) aided secure communication system. We assume that a sing…

eess.SP2020★ 6 cited

Stochastic Learning-Based Robust Beamforming Design for RIS-Aided Millimeter-Wave Systems in the Presence of Random Blockages

Gui Zhou, Cunhua Pan, Hong Ren +3

A fundamental challenge for millimeter wave (mmWave) communications lies in its sensitivity to the presence of blockages, which impact the connectivity of the communication links a…

eess.SP2020★ 8 cited

User Cooperation for IRS-aided Secure SWIPT MIMO Systems

Gui Zhou, Cunhua Pan, Hong Ren +3

In this paper, intelligent reflecting surface (IRS) is proposed to enhance the physical layer security in the Rician fading channel where the angular direction of the eavesdropper…

eess.SP2020★ 590 cited

A Framework of Robust Transmission Design for IRS-aided MISO Communications with Imperfect Cascaded Channels

Gui Zhou, Cunhua Pan, Hong Ren +2

Intelligent reflection surface (IRS) has recently been recognized as a promising technique to enhance the performance of wireless systems due to its ability of reconfiguring the si…

cs.IT2020★ 4 cited

Rate-Splitting Multiple Access for Multi-antenna Downlink Communication Systems: Spectral and Energy Efficiency Tradeoff

Gui Zhou, Yijie Mao, Bruno Clerckx

Rate-splitting (RS) has recently been recognized as a promising physical-layer technique for multi-antenna broadcast channels (BC). Due to its ability to partially decode the inter…