L
Li Wei
Researcher at Singapore University of Technology and Design
Publications - 18
Citations - 891
Li Wei is an academic researcher from Singapore University of Technology and Design. The author has contributed to research in topics: Communication channel & Computer science. The author has an hindex of 7, co-authored 12 publications receiving 271 citations.
Papers
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Journal ArticleDOI
Channel Estimation for RIS-Empowered Multi-User MISO Wireless Communications
TL;DR: A channel estimation framework based on the parallel factor decomposition to unfold the resulting cascaded channel model is proposed and it is demonstrated that the sum rate using the estimated channels always reach that of perfect channels under various settings, thus, verifying the effectiveness and robustness of the proposed estimation algorithms.
Journal ArticleDOI
Multi-Hop RIS-Empowered Terahertz Communications: A DRL-Based Hybrid Beamforming Design
Chongwen Huang,Zhaohui Yang,George C. Alexandropoulos,Kai Xiong,Li Wei,Chau Yuen,Zhaoyang Zhang,Merouane Debbah +7 more
TL;DR: In this paper, the authors proposed a hybrid beamforming scheme for the multi-hop RIS-assisted communication networks to improve the coverage range at the TeraHertz-band frequencies.
Posted Content
Channel Estimation for RIS-Empowered Multi-User MISO Wireless Communications
Li Wei,Chongwen Huang,George C. Alexandropoulos,Chau Yuen,Zhaoyang Zhang,Merouane Debbah,Fellow +6 more
TL;DR: In this article, a channel estimation framework based on the PARAllel FACtor (PARAFAC) decomposition is proposed to unfold the resulting cascaded channel model for the downlink of a RIS-empowered multi-user MISO downlink communication systems.
Proceedings ArticleDOI
Parallel Factor Decomposition Channel Estimation in RIS-Assisted Multi-User MISO Communication
TL;DR: In this paper, the authors focus on the downlink of a RIS-assisted multi-user MISO communication system and present a method based on the PARAllel FACtor (PARAFAC) decomposition to unfold the resulting cascaded channel model.
Posted Content
Parallel Factor Decomposition Channel Estimation in RIS-Assisted Multi-User MISO Communication
TL;DR: This paper focuses on the downlink of a RIS-assisted multi-user Multiple Input Single Output (MISO) communication system and presents a method based on the PARAllel FACtor (PARAFAC) decomposition to unfold the resulting cascaded channel model.