406 citations · 638 across the 50 of their papers we have counts for
20 papers · 1 filter
On Target Detection in the Presence of Clutter in Joint Communication and Sensing Cellular Networks
Julia Vinogradova, Gabor Fodor
Recent works on joint communication and sensing (JCAS) cellular networks have proposed to use time division mode (TDM) and concurrent mode (CM), as alternative methods for sharing…
Off-the-grid Blind Deconvolution and Demixing
Saeed Razavikia, Sajad Daei, Mikael Skoglund +2
We consider the problem of gridless blind deconvolution and demixing (GB2D) in scenarios where multiple users communicate messages through multiple unknown channels, and a single b…
Full-Duplex Wireless for 6G: Progress Brings New Opportunities and Challenges
Besma Smida, Ashutosh Sabharwal, Gabor Fodor +3
The use of in-band full-duplex (FD) enables nodes to simultaneously transmit and receive on the same frequency band, which challenges the traditional assumption in wireless network…
Mixed Coherent and Non-Coherent Transmission for Multi-CPU Cell-Free Systems
Roberto P. Antonioli, Iran M. Braga, Gabor Fodor +2
Existing works on cell-free systems consider either coherent or non-coherent downlink data transmission and a network deployment with a single central processing unit (CPU). While…
Channel Estimation in RIS-Assisted MIMO Systems Operating Under Imperfections
Paulo R. B. Gomes, Gilderlan T. de Araújo, Bruno Sokal +3
Reconfigurable intelligent surface is a potential technology component of future wireless networks due to its capability of shaping the wireless environment. The promising MIMO sys…
Semi-Blind Joint Channel and Symbol Estimation for IRS-Assisted MIMO Systems
Gilderlan Tavares de Araújo, André Lima Férrer de Almeida, Rémy Boyer +1
Intelligent reflecting surface (IRS) is a promising technology for the 6th generation of wireless systems, realizing the smart radio environment concept. In this paper, we present…
Vehicular Positioning and Tracking in Multipath Non-Line-of-Sight Channels
Zhicheng Ye, Julia Vinogradova, Gábor Fodor +1
We consider the downlink transmission in a single cell multiple-input multiple-output system, in which the user equipment correspond to a vehicle moving along a given trajectory. T…
Semi-Blind Joint Channel and Symbol Estimation in IRS-Assisted Multi-User MIMO Networks
Gilderlan Tavares de Araújo, Paulo Ricardo Brboza Gomes, André Lima Férrer de Almeida +2
Intelligent reflecting surface (IRS) is a promising technology for beyond 5th Generation of the wireless communications. In fully passive IRS-assisted systems, channel estimation i…
Fast Channel Estimation in the Transformed Spatial Domain for Analog Millimeter Wave Systems
Sandra Roger, Maximo Cobos, Carmen Botella-Mascarell +1
Fast channel estimation in millimeter-wave (mmWave) systems is a fundamental enabler of high-gain beamforming, which boosts coverage and capacity. The channel estimation stage typi…
A Hybrid Model-based and Data-driven Approach to Spectrum Sharing in mmWave Cellular Networks
Hossein S. Ghadikolaei, Hadi Ghauch, Gabor Fodor +2
Inter-operator spectrum sharing in millimeter-wave bands has the potential of substantially increasing the spectrum utilization and providing a larger bandwidth to individual user…
On the Energy Efficiency of MIMO Hybrid Beamforming for Millimeter Wave Systems with Nonlinear Power Amplifiers
Nima N. Moghadam, Gábor Fodor, Mats Bengtsson +1
Multiple-input multiple-output (MIMO) millimeter wave (mmWave) systems are vulnerable to hardware impairments due to operating at high frequencies and employing a large number of r…
How to Split UL/DL Antennas in Full-Duplex Cellular Networks
José Mairton B. da Silva, Hadi Ghauch, Gábor Fodor +1
To further improve the potential of full-duplex communications, networks may employ multiple antennas at the base station or user equipment. To this end, networks that employ curre…
On the Spectral Efficiency and Fairness in Full-Duplex Cellular Networks
Jose Mairton B. da Silva, Gabor Fodor, Carlo Fischione
To increase the spectral efficiency of wireless networks without requiring full-duplex capability of user devices, a potential solution is the recently proposed three-node full-dup…
Pilot Precoding and Combining in Multiuser MIMO Networks
Nima N. Moghadam, Hossein Shokri-Ghadikolaei, Gabor Fodor +2
Although the benefits of precoding and combining of data signals are widely recognized, the potential of these techniques for pilot transmission is not fully understood. This is pa…
Location-Aided Pilot Contamination Avoidance for Massive MIMO Systems
L. Srikar Muppirisetty, Themistoklis Charalambous, Johnny Karout +2
Pilot contamination, defined as the interference during the channel estimation process due to reusing the same pilot sequences in neighboring cells, can severely degrade the perfor…
Distributed Spectral Efficiency Maximization in Full-Duplex Cellular Networks
Jose Mairton B. da Silva, Yuzhe Xu, Gabor Fodor +1
Three-node full-duplex is a promising new transmission mode between a full-duplex capable wireless node and two other wireless nodes that use half-duplex transmission and reception…
Spectrum Pooling in MmWave Networks: Opportunities, Challenges, and Enablers
Federico Boccardi, Hossein Shokri-Ghadikolaei, Gabor Fodor +5
Motivated by the intrinsic characteristics of mmWave technologies, we discuss the possibility of an authorization regime that allows spectrum sharing between multiple operators, al…
Millimeter Wave Cellular Networks: A MAC Layer Perspective
Hossein Shokri-Ghadikolaei, Carlo Fischione, Gabor Fodor +2
The millimeter wave (mmWave) frequency band is seen as a key enabler of multi-gigabit wireless access in future cellular networks. In order to overcome the propagation challenges,…
Design Challenges of Millimeter Wave Communications: A MAC Layer Perspective
Hossein Shokri-Ghadikolaei, Carlo Fischione, Gabor Fodor +1
As the spectrum is becoming more scarce due to exponential demand of formidable data quantities, the new millimiterwave (mmW) band is considered as an enabling player of 5G communi…
Benchmarking Practical RRM Algorithms for D2D Communications in LTE Advanced
Gabor Fodor, Marco Belleschi, Demia D. Penda +3
Device-to-device (D2D) communication integrated into cellular networks is a means to take advantage of the proximity of devices and allow for reusing cellular resources and thereby…