535 citations · 928 across the 36 of their papers we have counts for
37 papers
Statistical Channel Model for FSO Systems Assisted by a UAV-Mounted IRS
Ferdaous Tarhouni, Vasilis K. Papanikolaou, Laura Cottatellucci +2
Integrating optical intelligent reflecting surfaces (IRSs) into aerial platforms, such as unmanned aerial vehicles (UAVs), has been proposed to relax the line-of-sight (LoS) constr…
On the Identifiability of Semi-Blind Estimation in Cell-Free Massive MIMO Networks
Christian Forsch, Laura Cottatellucci
Semi-blind joint channel estimation and data detection (JCD) is a promising approach to mitigate pilot contamination in cell-free massive multiple-input multiple-output (CF-MaMIMO)…
Expectation Propagation for Distributed Inference in Grant-Free Cell-Free Massive MIMO
Christian Forsch, Laura Cottatellucci
Grant-free cell-free massive multiple-input multiple-output (GF-CF-MaMIMO) systems are anticipated to be a key enabling technology for next-generation Internet-of-Things (IoT) netw…
Distributed Iterative ML and Message Passing for Grant-Free Cell-Free Massive MIMO Systems
Zilu Zhao, Christian Forsch, Laura Cottatellucci +1
Cell-Free (CF) Massive Multiple-Input Multiple-Output (MaMIMO) is considered one of the leading candidates for enabling next-generation wireless communication. With the growing int…
Bayesian Learning for Pilot Decontamination in Cell-Free Massive MIMO
Christian Forsch, Zilu Zhao, Dirk Slock +1
Pilot contamination (PC) arises when the pilot sequences assigned to user equipments (UEs) are not mutually orthogonal, eventually due to their reuse. In this work, we propose a no…
Wireless Information and Energy Transfer in the Era of 6G Communications
Constantinos Psomas, Konstantinos Ntougias, Nikita Shanin +8
Wireless information and energy transfer (WIET) represents an emerging paradigm which employs controllable transmission of radio-frequency signals for the dual purpose of data comm…
Distributed Joint User Activity Detection, Channel Estimation, and Data Detection via Expectation Propagation in Cell-Free Massive MIMO
Christian Forsch, Alexander Karataev, Laura Cottatellucci
We consider the uplink of a grant-free cell-free massive multiple-input multiple-output (GF-CF-MaMIMO) system. We propose an algorithm for distributed joint activity detection, cha…
Bilinear Expectation Propagation for Distributed Semi-Blind Joint Channel Estimation and Data Detection in Cell-Free Massive MIMO
Alexander Karataev, Christian Forsch, Laura Cottatellucci
We consider a cell-free massive multiple-input multiple-output (CF-MaMIMO) communication system in the uplink transmission and propose a novel algorithm for blind or semi-blind joi…
Joint Transmit Signal and Beamforming Design for Integrated Sensing and Power Transfer Systems
Kenneth MacSporran Mayer, Nikita Shanin, Zhenlong You +5
Integrating different functionalities, conventionally implemented as dedicated systems, into a single platform allows utilising the available resources more efficiently. We conside…
Accurate EH Modelling and Achievable Information Rate for SLIPT Systems with Multi-Junction Photovoltaic Receivers
Nikita Shanin, Hedieh Ajam, Vasilis K. Papanikolaou +2
In this paper, we study optical simultaneous lightwave information and power transfer (SLIPT) systems employing photovoltaic optical receivers (RXs). To be able to efficiently harv…
Information Rate-Harvested Power Tradeoff in THz SWIPT Systems Employing Resonant Tunnelling Diode-based EH Circuits
Nikita Shanin, Simone Clochiatti, Kenneth M. Mayer +3
In this paper, we study THz simultaneous wireless information and power transfer (SWIPT) systems. Since coherent information detection is challenging at THz frequencies and Schottk…
Optimal Transmit Antenna Deployment and Power Allocation for Wireless Power Supply in an Indoor Space
Kenneth M. Mayer, Laura Cottatellucci, Robert Schober
As Internet of Things (IoT) devices proliferate, sustainable methods for powering them are becoming indispensable. The wireless provision of power enables battery-free operation an…
EH Modelling and Achievable Rate for FSO SWIPT Systems with Non-linear Photovoltaic Receivers
Nikita Shanin, Hedieh Ajam, Vasilis K. Papanikolaou +3
In this paper, we study optical simultaneous wireless information and power transfer (SWIPT) systems, where a photovoltaic optical receiver (RX) is illuminated by ambient light and…
Resonant Tunneling Diode-Based THz SWIPT for Microscopic 6G IoT Devices
Nikita Shanin, Simone Clochiatti, Kenneth M. Mayer +3
In this paper, we study terahertz (THz) simultaneous wireless information and power transfer (SWIPT) for future micro-scale 6G Internet-of-Things (IoT) networks. Since Schottky dio…
Optimal Antenna Placement for Two-Antenna Near-Field Wireless Power Transfer
Kenneth MacSporran Mayer, Laura Cottatellucci, Robert Schober
Current trends in communication system design precipitate a change in the operating regime from the traditional far-field to the radiating near-field (Fresnel) region. We investiga…
Optimal Energy Signal Design for Multi-user MISO WPCNs With Non-linear Energy Harvesting Circuits
Nikita Shanin, Amelie Hagelauer, Laura Cottatellucci +1
In this work, we study a multi-user wireless powered communication network (WPCN), where a multi-antenna base station (BS) sends an energy signal to multiple single-antenna users e…
Cache-Aided Massive MIMO with Linear Precoding in Multi-cell Systems
Lin Xiang, Xiao Wei, Laura Cottatellucci +2
In this paper, we propose a novel joint caching and massive multiple-input multiple-output (MIMO) transmission scheme, referred to as \emph{cache-aided massive MIMO}, for multi-cel…
Optimal Resource Allocation and Beamforming for Two-User MISO WPCNs for a Non-linear Circuit-Based EH Model
Nikita Shanin, Moritz Garkisch, Amelie Hagelauer +2
We study two-user multiple-input single-output (MISO) wireless powered communication networks (WPCNs), where the user devices are equipped with non-linear energy harvesting (EH) ci…
Enforcing Statistical Orthogonality in Massive MIMO Systems via Covariance Shaping
Placido Mursia, Italo Atzeni, Laura Cottatellucci +1
This paper tackles the problem of downlink data transmission in massive multiple-input multiple-output (MIMO) systems where user equipments (UEs) exhibit high spatial correlation a…
Optimal Transmit Strategy for Multi-user MIMO WPT Systems With Non-linear Energy Harvesters
Nikita Shanin, Laura Cottatellucci, Robert Schober
In this paper, we study multi-user multi-antenna wireless power transfer (WPT) systems, where each antenna at the energy harvesting (EH) nodes is connected to a dedicated non-linea…
Optimal Transmit Strategy for MIMO WPT Systems With Non-linear Energy Harvesting
Nikita Shanin, Laura Cottatellucci, Robert Schober
In this paper, we study multiple-input multiple-output (MIMO) wireless power transfer (WPT) systems, where the energy harvester (EH) node is equipped with multiple nonlinear recten…
Harvested Power Region of Two-user MISO WPT Systems With Non-linear EH Nodes
Nikita Shanin, Laura Cottatellucci, Robert Schober
In this paper, we determine the harvested power region of a two-user multiple-input single-output (MISO) wireless power transfer (WPT) system for a non-linear model of the rectenna…
Markov Decision Process Based Design of SWIPT Systems: Non-linear EH Circuits, Memory, and Impedance Mismatch
Nikita Shanin, Laura Cottatellucci, Robert Schober
In this paper, we study simultaneous wireless information and power transfer (SWIPT) systems employing practical non-linear energy harvester (EH) circuits. Since the voltage across…
Rate-Power Region of SWIPT Systems Employing Nonlinear Energy Harvester Circuits with Memory
Nikita Shanin, Laura Cottatellucci, Robert Schober
In this paper, we study the rate-power region of a simultaneous wireless information and power transfer (SWIPT) system where a transmitter (TX) broadcasts a common signal to an inf…