10 citations · 11 across the 12 of their papers we have counts for
12 papers
Deep Unfolding for SIM-Assisted Multiband MU-MISO Downlink Systems
Muhammad Ibrahim, Amine Mezghani, Ekram Hossain
To improve the efficiency of scarce radio-frequency (RF) resources in next-generation wireless systems, an intelligent transceiver architecture based on stacked intelligent metasur…
Are Stacked Intelligent Metasurfaces (SIMs) Better than Single-layer Reconfigurable Intelligent Surfaces (RISs) for Wideband Multi-user MIMO Communication Systems?
Muhammad Ibrahim, Amine Mezghani, Ekram Hossain
Cascaded or stacked intelligent metasurfaces (SIMs) have emerged as a promising technology to overcome the physical limitations of single-layer reconfigurable intelligent surfaces…
Multi-Objective Optimization for Joint Communication and Sensing in Multi-user MIMO Systems: Characterizing the Pareto Boundary
Thakshila Perera, Amine Mezghani, Ekram Hossain
This paper investigates the Pareto boundary performance of a joint communication and sensing (JCAS) system that addresses both sensing and communication functions at the same time.…
Joint Communication and Sensing in RIS-Assisted MIMO System Under Mutual Coupling
Dilki Wijekoon, Amine Mezghani, Ekram Hossain
This paper considers a downlink Reconfigurable Intelligent Surface (RIS)-assisted Joint Communication and Sensing (JCAS) system within a physically-consistent setting, accounting f…
Dual-Function Beam Pattern Design for Multi-Target ISAC Systems: A Decoupled Approach
Wilson de Souza Junior, Taufik Abrao, Amine Mezghani +1
We investigate the beampattern design problem for mono-static multi-user (MU) multi-point-target integrated sensing and communication (ISAC) systems, where a dual-function multiple…
Manifold-Based Optimizations for RIS-Aided Massive MIMO Systems
Wilson de Souza Junior, David William Marques Guerra, José Carlos Marinello +2
Manifold optimization (MO) is a powerful mathematical framework that can be applied to optimize functions over complex geometric structures, which is particularly useful in advance…
Physically-consistent Multi-band Massive MIMO Systems: A Radio Resource Management Model
Nuwan Balasuriya, Amine Mezghani, Ekram Hossain
Massive multiple-input multiple-output (mMIMO) antenna systems and inter-band carrier aggregation (CA)-enabled multi-band communication are two key technologies to achieve very hig…
Physically-Consistent Modeling and Optimization of Non-local RIS-Assisted Multi-User MIMO Communication Systems
Dilki Wijekoon, Amine Mezghani, George C. Alexandropoulos +1
Mutual Coupling (MC) emerges as an inherent feature in Reconfigurable Intelligent Surfaces (RISs), particularly, when they are fabricated with sub-wavelength inter-element spacing.…
Resource Management in RIS-Assisted Rate Splitting Multiple Access for Next Generation (xG) Wireless Communications: Models, State-of-the-Art, and Future Directions
Ibrahim Aboumahmoud, Ekram Hossain, \\Amine Mezghani
Next generation wireless networks require more stringent performance levels. New technologies such as Reconfigurable intelligent surfaces (RISs) and rate-splitting multiple access…
Electromagnetically-Consistent Modeling and Optimization of Mutual Coupling in RIS-Assisted Multi-User MIMO Communication Systems
Dilki Wijekoon, Amine Mezghani, George C. Alexandropoulos +1
Mutual Coupling (MC) is an unavoidable feature in Reconfigurable Intelligent Surfaces (RISs) with sub-wavelength inter-element spacing. Its inherent presence naturally leads to non…
Optimal Placement of Transmissive RIS in the Near Field for Capacity Maximization in THz Communications
Nithish Sharvirala, Amine Mezghani, Ekram Hossain
This study centers on Line-of-Sight (LoS) MIMO communication enabled by a Transmissive Reconfigurable Intelligent Surface (RIS) operating in the Terahertz (THz) frequency bands. Th…
Reconfigurable Intelligent Surfaces-Enabled Intra-Cell Pilot Reuse in Massive MIMO Systems
Jose Carlos Marinello Filho, Taufik Abrao, Ekram Hossain +1
Channel state information (CSI) estimation is a critical issue in the design of modern massive multiple-input multiple-output (mMIMO) networks. With the increasing number of users,…