11 citations · 20 across the 8 of their papers we have counts for
9 papers
Simultaneous Direct and Indirect Channel Estimation for RIS-Assisted MIMO Communications
Daniel V. C. de Oliveira, Daniel C. Alcantara, Fazal. E Asim +2
This paper introduces an enhanced channel estimation method for reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) communications. Considering…
Decoupled Delay-Doppler and Angle Estimation in BD-RIS Sensing via Nested Tucker Decomposition
Kenneth Benício, André L. F. de Almeida, Fazal-E-Asim +4
We study single-target localization in a group-connected beyond-diagonal reconfigurable intelligent surface (BD-RIS)-assisted monostatic network with K element groups. We propose a…
PARAFAC-Based Time-Varying Channel Estimation for IRS-Aided Communications
Kenneth B. A. Benício, André L. F. de Almeida, Bruno Sokal +3
This paper proposes a tensor-based parametric channel estimation technique for IRS-assisted communication systems with time-varying channel parameters. We exploit the multidimensio…
A Decoupled Channel Estimation Method for Beyond Diagonal RIS
Bruno Sokal, Fazal-E-Asim, André L. F. de Almeida +2
Beyond diagonal reconfigurable intelligent surface (BD-RIS) is a new architecture for RIS where elements are interconnected to provide more wave manipulation flexibility than tradi…
Interference mitigation with block diagonalization for IRS-aided MU-MIMO communications
Wilker de O. Feitosa, Igor M. Guerreiro, Fco. Rodrigo P. Cavalcanti +5
This work investigates interference mitigation techniques in multi-user multiple input multiple output (MU-MIMO) Intelligent Reflecting Surface (IRS)-aided networks, focusing on th…
Tensor-based modeling/estimation of static channels in IRS-assisted MIMO systems
Kenneth B. A. Benício, André L. F. de Almeida, Bruno Sokal +3
This paper proposes a tensor-based parametric modeling and estimation framework in multiple-input multiple-output (MIMO) systems assisted by intelligent reflecting surfaces (IRSs).…
Tensor-Based Channel Estimation and Data-Aided Tracking in IRS-Assisted MIMO Systems
Kenneth B. A. Benicio, André L. F. de Almeida, Bruno Sokal +3
This letter proposes a model for symbol detection in the uplink of IRS-assisted networks in the presence of channel aging. During the first stage, we model the received pilot signa…
Two-Dimensional Channel Parameter Estimation for IRS-Assisted Networks
Fazal-E-Asim, André L. F. de Almeida, Bruno Sokal +2
This paper proposes a pilot decoupling-based two-dimensional channel parameter estimation method for intelligent reflecting surface (IRS)-assisted networks. We exploit the combined…
Structured Channel Estimation for RIS-Assisted THz Communications
Fazal-E-Asim, Bruno Sokal, André L. F. de Almeida +2
This paper proposes tensor-based channel estimation for reconfigurable intelligent surface (RIS)-assisted communication networks. We exploit the inherent geometrical structure of t…