87 citations · 147 across the 24 of their papers we have counts for
17 papers · 1 filter
Tensor-based Channel Tracking for RIS-Empowered Multi-User MIMO Wireless Systems
Jide Yuan, George C. Alexandropoulos, Eleftherios Kofidis +2
The accurate estimation of Channel State Information (CSI) is of crucial importance for the successful operation of Multiple-Input Multiple-Output (MIMO) communication systems, esp…
Decentralized Design of Fast Iterative Receivers for Massive and Extreme-Large MIMO Systems
Victor Croisfelt, Taufik Abrão, Abolfazl Amiri +2
Despite the extensive use of a centralized approach to design receivers at the base station for massive multiple-input multiple-output (M-MIMO) systems, their actual implementation…
Wireless Environment as a Service Enabled by Reconfigurable Intelligent Surfaces: The RISE-6G Perspective
Emilio Calvanese Strinati, George C. Alexandropoulos, Vincenzo Sciancalepore +15
The design of 6th Generation (6G) wireless networks points towards flexible connect-and-compute technologies capable to support innovative services and use cases. Targeting the 203…
Frequency-Mixing Intelligent Reflecting Surfaces for Nonlinear Wireless Propagation
Jide Yuan, Elisabeth De Carvalho, Robin Jess Williams +2
We introduce the concept of frequency-mixing intelligent reflecting surface (FMx-IRS), where the elements of the surface continuously change the phases of the incident signals. In…
Intelligent Reflecting Surface Operation under Predictable Receiver Mobility: A Continuous Time Propagation Model
Bho Matthiesen, Emil Björnson, Elisabeth De Carvalho +1
The operation of an intelligent reflecting surface (IRS) under predictable receiver mobility is investigated. We develop a continuous time system model for multipath channels and d…
A Communication Model for Large Intelligent Surfaces
Robin Jess Williams, Elisabeth De Carvalho, Thomas L. Marzetta
The purpose of this paper is to introduce a communication model for Large Intelligent Surfaces (LIS). A LIS is modelled as a collection of tiny closely spaced antenna elements. Due…