activity
20102024
most citedA Comparison of Hybrid Beamforming and Digital Beamforming with Low-Resolution ADCs for Multiple Users and Imperfect CSI

123 citations · 796 across the 52 of their papers we have counts for

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cs.IT2024

Performance Analysis of Systems with Coupled and Decoupled RISs

Dominik Semmler, Josef A. Nossek, Michael Joham +1

We analyze and compare different methods for handling the mutual coupling in RIS-aided communication systems. A new mutual coupling aware algorithm is derived where the reactance o…

cs.IT2023

Physically Consistent Models for Intelligent Reflective Surface-assisted Communications under Mutual Coupling and Element Size Constraint

Mohamed Akrout, Faouzi Bellili, Amine Mezghani +1

We investigate the benefits of mutual coupling effects between the passive elements of intelligent reconfigurable surfaces (IRSs) on maximizing the achievable rate of downlink Inte…

cs.IT2021

Sparse Linear Precoders for Mitigating Nonlinearities in Massive MIMO

Amine Mezghani, Daniel Plabst, Lee A. Swindlehurst +2

Dealing with nonlinear effects of the radio-frequency(RF) chain is a key issue in the realization of very large-scale multi-antenna (MIMO) systems. Achieving the remarkable gains p…

cs.IT2020

Position Information from Single-Bounce Reflections

Anastasios Kakkavas, Mario H. Castañeda García, Gonzalo Seco-Granados +3

In the context of positioning a target with a single-anchor, this contribution focuses on the Fisher information about the position, orientation and clock offset of the target prov…

cs.IT2020★ 31 cited

Power Allocation and Parameter Estimation for Multipath-based 5G Positioning

Anastasios Kakkavas, Henk Wymeersch, Gonzalo Seco-Granados +3

We consider a single-anchor multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) system with imperfectly synchronized transmitter (Tx) and receiv…

cs.IT2020

On the Effect of Mutual Coupling in One-Bit Spatial Sigma-Delta Massive MIMO Systems

Hessam Pirzadeh, Gonzalo Seco-Granados, A. Lee Swindlehurst +1

The one-bit spatial Sigma-Delta concept has recently been proposed as an approach for achieving low distortion and low power consumption for massive multi-input multi-output system…