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NeuroRIS: Neuromorphic-Inspired Metasurfaces
Reconfigurable intelligent surfaces (RISs) operate similarly to electromagnetic (EM) mirrors and remarkably go beyond Snell law to generate an applicable EM environment allowing for flexible adaptation and fostering sustainability in terms of economic deployment and energy efficiency.
Holographic RIS Empowered THz Communications with Hardware Imperfections under Adverse Weather Conditions
This paper focuses on providing a theoretical framework for the evaluation of the performance of holographic reconfigurable intelligent surface (HRIS) empowered terahertz (THz) wireless systems under fog conditions.
Training Terahertz Wireless Systems to Battle I/Q Imbalance
Two training approaches are implemented, namely: i) conventional that requires a considerable amount of data for training, and ii) a reinforcement learning based one, which demands a shorter dataset in comparison to the former.
Can graph neural network-based detection mitigate the impact of hardware imperfections?
We focus on a high-frequency, high-directional wireless system where IQI affects both the transmitter (TX) and the receiver (RX).
Localization as a key enabler of 6G wireless systems: A comprehensive survey and an outlook
Finally, insights that arise from the presented analysis are summarized and used to highlight the most important future directions for localization in 6G wireless systems.
Throughput analysis of RIS-assisted UAV wireless systems under disorientation and misalignment
Reconfigurable intelligent surface (RIS)-assisted unmanned areal vehicles (UAV) communications have been identified as a key enabler of a number of next-generation applications.
Artificial Intelligence Empowered Multiple Access for Ultra Reliable and Low Latency THz Wireless Networks
In more detail, a fast and centralized joint user association, radio resource allocation, and blockage avoidance by means of a novel metaheuristic-machine learning framework is documented, that maximizes the THz networks performance, while minimizing the association latency by approximately three orders of magnitude.
Performance Analysis of Multi-Reconfigurable Intelligent Surface-Empowered THz Wireless Systems
In this paper, we introduce a theoretical framework for analyzing the performance of multi-reconfigurable intelligence surface (RIS) empowered terahertz (THz) wireless systems subject to turbulence and stochastic beam misalignment.
Outage performance analysis of RIS-assisted UAV wireless systems under disorientation and misalignment
In this paper, we analyze the performance of a reconfigurable intelligent surface (RIS)-assisted unmanned aerial vehicle (UAV) wireless system that is affected by mixture-gamma small-scale fading, stochastic disorientation, and misalignment, as well as transceivers hardware imperfections.
Channel modeling for in-body optical wireless communications
Moreover, we formulate a model for the calculation of the absorption coefficient of any generic biological tissue.
Cascaded Composite Turbulence and Misalignment: Statistical Characterization and Applications to Reconfigurable Intelligent Surface-Empowered Wireless Systems
Building upon the derived analytical expressions, we present novel closed-form formulas that quantify the joint impact of turbulence and misalignment on the outage performance for two scenarios of high interest namely cascaded multi-RIS-empowered free space optics (FSO) and terahertz (THz) wireless systems.
Pathloss modeling for in-body optical wireless communications
Optical wireless communications (OWCs) have been recognized as a candidate enabler of next generation in-body nano-scale networks and implants.
Pathloss modeling of reconfigurable intelligent surface assisted THz wireless systems
This paper presents an analytical pathloss model for reconfigurable intelligent surface (RIS) assisted terahertz (THz) wireless systems.
Performance Evaluation of Reconfigurable Intelligent Surface Assisted D-band Wireless Communication
The system performance is evaluated in terms of pathgain and capacity considering the RIS design parameters, the TX/RX-RIS distance and the elevation angles from the center of the RIS to the transceivers.
Ergodic capacity analysis of reconfigurable intelligent surface assisted wireless systems
This paper presents the analytic framework for evaluating the ergodic capacity (EC) of the reconfigurable intelligent surface (RIS) assisted systems.
Machine Learning in Nano-Scale Biomedical Engineering
Next, we discuss the state of the art ML methodologies that are used to countermeasure the aforementioned challenges.
Outage Probability Analysis of THz Relaying Systems
This paper focuses on quantifying the outage performance of terahertz (THz) relaying systems.
Metasurface-Coated Devices: A New Paradigm for Energy-Efficient and Secure 6G Communications
The passive metasurface-coated devices can achieve ultra-high EE and EH besides the signal detection, combined with an enhanced secrecy rate at the legitimate user and/or improved spying capabilities of the eavesdroppers under ULP transmission.
All-Optical Cochlear Implants
In the present work, we introduce a novel cochlear implant (CI) architecture, namely all-optical CI (AOCI), which directly converts acoustic to optical signals capable of stimulating the cochlear neurons.
A Low-Overhead Hierarchical Beam-tracking Algorithm for THz Wireless Systems
In this paper, a novel hierarchical beamtracking approach, which is suitable for terahertz (THz) wireless systems, is presented.
