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07/25/2023
Holographic MIMO Communications: What is the benefit of closely spaced antennas?
Holographic MIMO refers to an array (possibly large) with a massive numb...
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06/08/2023
DFT-Based Channel Estimation for Holographic MIMO
Holographic MIMO (hMIMO) systems with a massive number of individually c...
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02/27/2023
Formation-of-Arrays Antenna Technology for High-Throughput Mobile Non-Terrestrial Networks
Effective integration of terrestrial and non-terrestrial segments is one...
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02/27/2023
Spherical Wavefronts Improve MU-MIMO Spectral Efficiency When Using Electrically Large Arrays
Modern MIMO communication systems are almost exclusively designed under ...
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07/02/2022
Cell-Free Massive MIMO for URLLC: A Finite-Blocklength Analysis
We present a general framework for the characterization of the packet er...
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06/23/2022
Cooperative Hybrid Networks with Active Relays and RISs for B5G: Applications, Challenges, and Research Directions
Among the recent advances and innovations in wireless technologies, reco...
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06/15/2022
Mitigating Intra-Cell Pilot Contamination in Massive MIMO: A Rate Splitting Approach
Massive MIMO (MaMIMO) has become an integral part of the 5G standard, an...
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05/23/2022
Exploiting Array Geometry for Reduced-Subspace Channel Estimation in RIS-Aided Communications
A reconfigurable intelligent surface (RIS) can be used to improve the ch...
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04/11/2022
Performance analysis of WDM in LoS communications with arbitrary orientation and position
This letter focuses on the wavenumber-division-multiplexing (WDM) scheme...
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03/15/2022
Intelligent Reconfigurable Surfaces vs. Decode-and-Forward: What is the Impact of Electromagnetic Interference?
This paper considers the use of an intelligent reconfigurable surface (I...
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12/31/2021
Centralized and Distributed Power Allocation for Max-Min Fairness in Cell-Free Massive MIMO
Cell-free Massive MIMO systems consist of a large number of geographical...
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11/03/2021
Cramér-Rao Bounds for Holographic Positioning
Multiple antennas arrays play a key role in wireless networks for commun...
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10/13/2021
A Primer on Near-Field Beamforming for Arrays and Reconfigurable Intelligent Surfaces
Wireless communication systems have almost exclusively operated in the f...
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10/05/2021
Pilot Decontamination Processing in Cell-Free Massive MIMO
This letter focuses on the pilot contamination problem in the uplink and...
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09/21/2021
Nyquist-Sampling and Degrees of Freedom of Electromagnetic Fields
A signal-space approach is presented to study the Nyquist sampling and n...
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08/10/2021
Channel Modeling and Channel Estimation for Holographic Massive MIMO with Planar Arrays
In a realistic wireless environment, the multi-antenna channel usually e...
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08/05/2021
Foundations of User-Centric Cell-Free Massive MIMO
Imagine a coverage area where each mobile device is communicating with a...
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07/22/2021
Cell-free Massive MIMO with Short Packets
In this paper, we adapt to cell-free Massive MIMO (multiple-input multip...
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06/23/2021
Wavenumber-Division Multiplexing in Line-of-Sight Holographic MIMO Communications
The ultimate performance of any wireless communication system is limited...
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06/21/2021
Electromagnetic Interference in RIS-Aided Communications
The prospects of using a reconfigurable intelligent surface (RIS) to aid...
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05/18/2021
Utility-Based Precoding Optimization Framework for Large Intelligent Surfaces
The spectral efficiency of wireless networks can be made nearly infinite...
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05/04/2021
Holographic MIMO Communications
Imagine a MIMO communication system that fully exploits the propagation ...
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04/30/2021
Cramér-Rao Bounds for Near-Field Localization
Multiple antenna arrays play a key role in wireless networks for communi...
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04/16/2021
Cell-Free Massive MIMO with Large-Scale Fading Decoding and Dynamic Cooperation Clustering
This paper considers the uplink of user-centric cell-free massive MIMO (...
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03/29/2021
Spatial Characterization of Electromagnetic Random Channels
The majority of stochastic channel models rely on the electromagnetic fa...
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02/01/2021
Reconfigurable Intelligent Surfaces: A Signal Processing Perspective With Wireless Applications
A reconfigurable intelligent surface (RIS) is a two-dimensional surface ...
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12/14/2020
Holographic MIMO Communications Under Spatially-Stationary Scattering
Holographic MIMO is a spatially-constrained MIMO system with a massive n...
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11/27/2020
Near- and Far-Field Communications with Large Intelligent Surfaces
This paper studies the uplink spectral efficiency (SE) achieved by two s...
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09/22/2020
URLLC with Massive MIMO: Analysis and Design at Finite Blocklength
The fast adoption of Massive MIMO for high-throughput communications was...
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09/10/2020
Rayleigh Fading Modeling and Channel Hardening for Reconfigurable Intelligent Surfaces
A realistic performance assessment of any wireless technology requires t...
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07/09/2020
Outage Analysis of Downlink URLLC in Massive MIMO systems with Power Allocation
Massive MIMO is seen as a main enabler for low latency communications, t...
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03/13/2020
A Rate Splitting Strategy for Mitigating Intra-Cell Pilot Contamination in Massive MIMO
The spectral efficiency (SE) of Massive MIMO (MaMIMO) systems is affecte...
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03/03/2020
Code-domain NOMA in Massive MIMO: When is it Needed?
In overloaded Massive MIMO (mMIMO) systems, wherein the number K of user...
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02/12/2020
Power Scaling Laws and Near-Field Behaviors of Massive MIMO and Intelligent Reflecting Surfaces
Large arrays might be the solution to the capacity problems in wireless ...
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11/18/2019
Degrees of Freedom of Holographic MIMO Channels
This paper focuses on physically large spatially-continuous apertures, c...
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11/12/2019
Spatial Characterization of Holographic MIMO Channels
Imagine beings surrounded by continuous apertures that can emit and rece...
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08/08/2019
Demystifying the Power Scaling Law of Intelligent Reflecting Surfaces and Metasurfaces
Intelligent reflecting surfaces (IRSs) have recently attracted the atten...
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08/08/2019
Scalable Cell-Free Massive MIMO Systems
Imagine a coverage area with many wireless access points that cooperate ...
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07/03/2019
What is the Benefit of Code-domain NOMA in Massive MIMO?
In overloaded Massive MIMO systems, wherein the number K of user equipme...
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06/26/2019
A New Look at Cell-Free Massive MIMO: Making It Practical With Dynamic Cooperation
This paper takes a new look at Cell-free Massive MIMO (multiple-input mu...
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06/14/2019
Massive MIMO Radar for Target Detection
Since the seminal paper by Marzetta from 2010, the Massive MIMO paradigm...
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05/31/2019
Spectral Efficiency Analysis in Dense Massive MIMO Networks
This work considers the uplink of a Massive MIMO network wherein the bas...
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04/08/2019
Scaling up MIMO radar for target detection
This work focuses on target detection in a colocated MIMO radar system. ...
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04/06/2019
Towards Massive MIMO 2.0: Understanding spatial correlation, interference suppression, and pilot contamination
Since the seminal paper by Marzetta from 2010, Massive MIMO has changed ...
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03/25/2019
Making Cell-Free Massive MIMO Competitive With MMSE Processing and Centralized Implementation
Cell-free Massive MIMO is considered as a promising technology for satis...
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03/23/2019
Large-System Analysis of Massive MIMO with Optimal M-MMSE Processing
We consider the uplink of a Massive MIMO network with L cells, each comp...
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02/11/2019
Massive MIMO is a Reality - What is Next? Five Promising Research Directions for Antenna Arrays
Massive MIMO (multiple-input multiple-output) is no longer a "wild" or "...
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12/17/2018
User Association and Load Balancing for Massive MIMO through Deep Learning
This work investigates the use of deep learning to perform user cell ass...
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12/10/2018
Deep Learning Power Allocation in Massive MIMO
This work advocates the use of deep learning to perform max-min and max-...
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11/28/2018
