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Found 21 papers, 0 papers with code
Localization Based on MIMO Backscattering from Retro-Directive Antenna Arrays
In this paper, we propose the exploitation of backscattering from retro-directive antenna arrays (RAAs) to address these imperatives.
Holographic Imaging with XL-MIMO and RIS: Illumination and Reflection Design
This paper addresses a near-field imaging problem utilizing extremely large-scale multiple-input multiple-output (XL-MIMO) antennas and reconfigurable intelligent surfaces (RISs) already in place for wireless communications.
NLOS Localization Exploiting Frequency-selective Metasurfaces
This paper introduces a new approach to localize user devices located in non-line-of-sight (NLOS) areas using a passive, non-reconfigurable, and frequency-selective metasurface called metaprism.
Holographic MIMO Communications exploiting the Orbital Angular Momentum
This study delves into the potential of harnessing the orbital angular momentum (OAM) property of electromagnetic waves in near-field and line-of-sight scenarios by utilizing large intelligent surfaces, in the context of holographic multiple-input multiple-output (MIMO) communications.
Reconfigurable Electromagnetic Environments: A General Framework
The recent introduction of the smart radio environments (SREs) paradigm, enabled by reconfigurable intelligent surfaces (RISs), has put in evidence the need for physically-consistent models and design tools for communication systems integrating electromagnetic (EM) and signal processing theories.
Grant-free Random Access with Self-conjugating Metasurfaces
This is done in a blind way without the need for RF/ADC chains at the UE side as well as without explicit channel estimation and time-consuming beam alignment schemes.
Radio SLAM for 6G Systems at THz Frequencies: Design and Experimental Validation
Next-generation wireless networks will see the convergence of communication and sensing, also exploiting the availability of large bandwidths in the Terahertz (THz) spectrum and electrically large antenna arrays on handheld devices.
Near-field Localization with Dynamic Metasurface Antennas
We use a direct positioning estimation method based on curvature-of-arrival of the impinging wavefront to obtain the user location, and characterize the effects of DMA tuning on the estimation accuracy.
Two-Timescale Transmission Design and RIS Optimization for Integrated Localization and Communications
Reconfigurable intelligent surfaces (RISs) have tremendous potential to boost communication performance, especially when the line-of-sight (LOS) path between the user equipment (UE) and base station (BS) is blocked.
6G Wireless Communications: From Far-field Beam Steering to Near-field Beam Focusing
As a consequence, it is expected that some portion of future 6G wireless communications may take place in the radiating near-field (Fresnel) region, in addition to the far-field operation as in current wireless technologies.
Near-Field Wireless Power Transfer with Dynamic Metasurface Antennas
Radio frequency wireless power transfer (WPT) enables charging low-power mobile devices without relying on wired infrastructure.
Communication Modes with Large Intelligent Surfaces in the Near Field
This paper proposes a practical method for the definition of communication modes when antennas operate in the near-field region, by realizing ad-hoc beams exploiting the focusing capability of large antennas.
Near-field Wireless Power Transfer for 6G Internet-of-Everything Mobile Networks: Opportunities and Challenges
Radiating wireless power transfer (WPT) brings forth the possibility to cost-efficiently charge wireless devices without requiring a wiring infrastructure.
Beam Focusing for Near-Field Multi-User MIMO Communications
As the ability to achieve beam focusing is dictated by the transmit antenna, we study near-field signaling considering different antenna structures, including fully-digital architectures, hybrid phase shifter-based precoders, and the emerging dynamic metasurface antenna (DMA) architecture for massive MIMO arrays.
Near-field Tracking with Large Antenna Arrays: Fundamental Limits and Practical Algorithms
In this paper, we study a near-field tracking problem for inferring the state (i. e., the position and velocity) of a moving source with an ad-hoc observation model that accounts for the phase profile of a large receiving array.
Information Theory Systems and Control Systems and Control Information Theory
Holographic Communication using Intelligent Surfaces
Holographic communication is intended as an holistic way to manipulate with unprecedented flexibility the electromagnetic field generated or sensed by an antenna.
6G White Paper on Localization and Sensing
This white paper concludes by highlighting foundational research challenges, as well as implications and opportunities related to privacy, security, and trust.
Beamwidth Optimization and Resource Partitioning Scheme for Localization Assisted mm-wave Communications
We study a mm-wave wireless network deployed along the roads of an urban area, to support localization and communication services simultaneously for outdoor mobile users.
Reinforcement Learning for UAV Autonomous Navigation, Mapping and Target Detection
In this paper, we study a joint detection, mapping and navigation problem for a single unmanned aerial vehicle (UAV) equipped with a low complexity radar and flying in an unknown environment.
Dynamic Radar Network of UAVs: A Joint Navigation and Tracking Approach
Nowadays there is a growing research interest on the possibility of enriching small flying robots with autonomous sensing and online navigation capabilities.
Radio Positioning with EM Processing of the Spherical Wavefront
Next 5G and beyond applications have brought a tremendous interest towards array systems employing an extremely large number of antennas, so that the technology that might be in place for communication can be also exploited for positioning.
