Search Results for author:
Found 18 papers, 1 papers with code
Rotatable Antenna-Enabled Secure Wireless Communication
Rotatable antenna (RA) is a promising technology that exploits new spatial degrees of freedom (DoFs) to improve wireless communication and sensing performance.
Rotatable Antennas for Integrated Sensing and Communications
In this letter, we propose to deploy rotatable antennas (RAs) at the base station (BS) to enhance both communication and sensing (C&S) performances, by exploiting a new spatial degree-of-freedom (DoF) offered by array rotation.
Intelligent Reflecting Surface-Aided Electromagnetic Stealth over Extended Regions
Compared to traditional electromagnetic stealth (ES) materials, which are effective only within specific frequencies and orientations, intelligent reflecting surface (IRS) technology introduces a novel paradigm for achieving dynamic and adaptive ES by adapting its reflection pattern in real time to neutralize radar probing signals echoed back from the target.
Linear Model of RIS-Aided High-Mobility Communication System
Reconfigurable intelligent surface (RIS)-aided vehicle-to-everything (V2X) communication has emerged as a crucial solution for providing reliable data services to vehicles on the road.
A Demo of Radar Sensing Aided Rotatable Antenna for Wireless Communication System
Rotatable antenna (RA) represents a novel antenna architecture that enhances wireless communication system performance by independently or collectively adjusting each antenna's boresight/orientation.
Rotatable Antenna Enabled Wireless Communication System with Visual Recognition: A Prototype Implementation
In this demonstration, we present a prototype of the RA-enabled wireless communication system with a visual recognition module to evaluate the performance gains provided by the RA in practical environments.
Joint Size and Placement Optimization for IRS-Aided Communications with Active and Passive Elements
We first derive the optimized number of active and passive elements for BHU, BAPU, and BPAU schemes, respectively.
Channel Estimation for XL-IRS Assisted Wireless Systems with Double-sided Visibility Regions
To address this issue, we propose in this paper an efficient three-step XL-IRS channel estimation method.
Intelligent Reflecting Surface-Enabled Anti-Detection for Secure Sensing and Communications
The ever-increasing reliance on wireless communication and sensing has led to growing concerns over the vulnerability of sensitive information to unauthorized detection and interception.
A New Intelligent Reflecting Surface-Aided Electromagnetic Stealth Strategy
Electromagnetic wave absorbing material (EWAM) plays an essential role in manufacturing stealth aircraft, which can achieve the electromagnetic stealth (ES) by reducing the strength of the signal reflected back to the radar system.
Intelligent Reflecting Surface-Aided Electromagnetic Stealth Against Radar Detection
While traditional electromagnetic stealth materials/metasurfaces can render a target virtually invisible to some extent, they lack flexibility and adaptability, and can only operate within a limited frequency and angle/direction range, making it challenging to ensure the expected stealth performance.
Near-Field Beam Management for Extremely Large-Scale Array Communications
Extremely large-scale arrays (XL-arrays) have emerged as a promising technology to achieve super-high spectral efficiency and spatial resolution in future wireless systems.
Mixed Near- and Far-Field Communications for Extremely Large-Scale Array: An Interference Perspective
For this scenario, we first obtain a closed-form expression for the inter-user interference at the near-field user caused by the far-field beam by using Fresnel functions, based on which the effects of the number of BS antennas, far-field user (FU) angle, near-field user (NU) angle and distance are analyzed.
Efficient DOA Estimation Method for Reconfigurable Intelligent Surfaces Aided UAV Swarm
Specifically, considering the position perturbation of UAVs, a new atomic norm-based DOA estimation method is proposed, where an atomic norm is defined with the parameter of the position perturbation.
Efficient Channel Estimation for Double-IRS Aided Multi-User MIMO System
To achieve the more significant passive beamforming gain in the double-intelligent reflecting surface (IRS) aided system over the conventional single-IRS counterpart, channel state information (CSI) is indispensable in practice but also more challenging to acquire, due to the presence of not only the single- but also double-reflection links that are intricately coupled and also entail more channel coefficients for estimation.
Information Theory Information Theory
Double-IRS Assisted Multi-User MIMO: Cooperative Passive Beamforming Design
Intelligent reflecting surface (IRS) has emerged as an enabling technology to achieve smart and reconfigurable wireless communication environment cost-effectively.
Information Theory Emerging Technologies Information Theory
Intelligent Reflecting Surface Aided Wireless Communications: A Tutorial
Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal prorogation in wireless networks.
Intelligent Reflecting Surface Assisted Multi-User OFDMA: Channel Estimation and Training Design
To achieve the full passive beamforming gains of intelligent reflecting surface (IRS), accurate channel state information (CSI) is indispensable but practically challenging to acquire, due to the excessive amount of channel parameters to be estimated which increases with the number of IRS reflecting elements as well as that of IRS-served users.
Information Theory Information Theory
