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Two-Timescale Transmission Design for RIS-Aided Cell-Free Massive MIMO Systems


Oct 19, 2022
Jianxin Dai, Jin Ge, Kangda Zhi, Cunhua Pan, Zaichen Zhang, Jiangzhou Wang, Xiaohu You

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Toward Secure and Private Over-the-Air Federated Learning


Oct 14, 2022
Na Yan, Kezhi Wang, Kangda Zhi, Cunhua Pan, Kok Keong Chai, H. Vincent Poor

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


Dec 15, 2021
Cunhua Pan, Gui Zhou, Kangda Zhi, Sheng Hong, Tuo Wu, Yijin Pan, Hong Ren, Marco Di Renzo, A. Lee Swindlehurst, Rui Zhang, Angela Yingjun Zhang

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* Invited overview paper for the special issue of RIS/IRS in IEEE JSTSP. Keywords: Reconfigurable intelligent surface (RIS), intelligent reflecting surface (IRS), channel estimation, transmission design, radio localization 

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Active RIS Versus Passive RIS: Which Is Superior with the Same Power Budget?


Dec 14, 2021
Kangda Zhi, Cunhua Pan, Hong Ren, Kok Keong Chai, Maged Elkashlan

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* Submit to IEEE Journal. Keywords: Reconfigurable intelligent surface (RIS), intelligent reflecting surface (IRS), Active RIS 

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


Nov 02, 2021
Kangda Zhi, Cunhua Pan, Gui Zhou, Hong Ren, Maged Elkashlan, Robert Schober

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* Submitted to IEEE journal. Keywords: Reconfigurable Intelligent Surface, Intelligent Reflecting Surface, Massive MIMO, Channel estimation, zero-forcing 

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Two-Timescale Design for Reconfigurable Intelligent Surface-Aided Massive MIMO Systems with Imperfect CSI


Aug 18, 2021
Kangda Zhi, Cunhua Pan, Hong Ren, Kezhi Wang, Maged Elkashlan, Marco Di Renzo, Robert Schober, H. Vincent Poor, Jiangzhou Wang, Lajos Hanzo

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* 71 pages, submitted to IEEE TIT. Keywords: Reconfigurable Intelligent Surface, Intelligent Reflecting Surface, Massive MIMO, Channel estimation, etc 

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Ergodic Rate Analysis of Reconfigurable Intelligent Surface-Aided Massive MIMO Systems with ZF Detectors


Jul 16, 2021
Kangda Zhi, Cunhua Pan, Hong Ren, Kezhi Wang

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* Submitted to IEEE journal. Keywords: Reconfigurable intelligent surface (RIS), intelligent reflecting surface (IRS), massive MIMO 

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Reconfigurable Intelligent Surface-Aided MISO Systems with Statistical CSI: Channel Estimation, Analysis and Optimization


Jul 12, 2021
Kangda Zhi, Cunhua Pan, Hong Ren, Kezhi Wang, Maged Elkashlan

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* Accepted by IEEE SPAWC 2021. Keywords: Intelligent Reflecting Surface, Reconfigurable Intelligent Surface 

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Reconfigurable Intelligent Surface aided Massive MIMO Systems with Low-Resolution DACs


Mar 16, 2021
Jianxin Dai, Yuanyuan Wang, Cunhua Pan, Kangda Zhi, Hong Ren, Kezhi Wang

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* Keywords: Intelligent Reflecting Surface (IRS), Reconfigurable Intelligent Surface (RIS), massive MIMO, low-resolution ADC 

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