Fazal-E- Asim
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Least-Squares Khatri-Rao Factorization of a Polynomial Matrix Open
The Khatri-Rao product is extensively used in array processing, tensor decomposition, and multi-way data analysis. Many applications require a least-squares (LS) Khatri-Rao factorization. In broadband sensor array problems, polynomial matr…
A Decoupled Channel Estimation Method for Beyond Diagonal RIS Open
Beyond diagonal reconfigurable intelligent surface (BD-RIS) is a new architecture for RIS where elements are interconnected to provide more wave manipulation flexibility than traditional single connected RIS, enhancing data rate and covera…
View article: Structured Channel Estimation for RIS-Assisted THz Communications
Structured Channel Estimation for RIS-Assisted THz Communications Open
This paper proposes tensor-based channel estimation for reconfigurable intelligent surface (RIS)-assisted communication networks. We exploit the inherent geometrical structure of the Terahertz propagation channel, including the antenna arr…
Low-Complexity Joint Active and Passive Beamforming Design for IRS-Assisted MIMO Open
In this letter, we consider an intelligent reflecting surface (IRS)-assisted multiple input multiple output (MIMO) communication and we optimize the joint active and passive beamforming by exploiting the geometrical structure of the propag…