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Found 18 papers, 0 papers with code
Extended Automatic Repeat Request For Integrated Sensing And Communication Networks
6G wireless networks will integrate communication, computing, localization, and sensing capabilities while meeting the needs of high reliability and trustworthiness.
Joint User Detection and Localization in Near-Field Using Reconfigurable Intelligent Surfaces
This letter studies the problem of jointly detecting active user equipments (UEs) and estimating their location in the near field, wherein the base station (BS) is unaware of the number of active (or inactive) UEs and their positions.
Combating Inter-Operator Pilot Contamination in Reconfigurable Intelligent Surfaces Assisted Multi-Operator Networks
In this paper, we study a new kind of pilot contamination appearing in multi-operator reconfigurable intelligent surfaces (RIS) assisted networks, where multiple operators provide services to their respective served users.
Interference mitigation with block diagonalization for IRS-aided MU-MIMO communications
This work investigates interference mitigation techniques in multi-user multiple input multiple output (MU-MIMO) Intelligent Reflecting Surface (IRS)-aided networks, focusing on the base station end.
Impact of Pilot Contamination Between Operators With Interfering Reconfigurable Intelligent Surfaces
In this paper, we study the impact of pilot contamination in a system where two operators serve their respective users with the assistance of two wide-band reconfigurable intelligent surfaces (RIS), each belonging to a single operator.
Tensor-Based Channel Estimation and Data-Aided Tracking in IRS-Assisted MIMO Systems
This letter proposes a model for symbol detection in the uplink of IRS-assisted networks in the presence of channel aging.
Two-Dimensional Channel Parameter Estimation for IRS-Assisted Networks
The tradeoffs between performance and complexity offered by the proposed methods are discussed and numerically assessed.
Tensor-Based High-Resolution Channel Estimation for RIS-Assisted Communications
This letter proposes a high-resolution channel estimation for reconfigurable intelligent surface (RIS)-assisted communication networks.
Antenna Array Calibration Via Gaussian Process Models
Antenna array calibration is necessary to maintain the high fidelity of beam patterns across a wide range of advanced antenna systems and to ensure channel reciprocity in time division duplexing schemes.
A Distributed Game-Theoretic Solution for Power Management in the Uplink of Cell-Free Systems
This paper investigates cell-free massive multiple input multiple output systems with a particular focus on uplink power allocation.
Cell-Free Data Power Control Via Scalable Multi-Objective Bayesian Optimisation
Cell-free multi-user multiple input multiple output networks are a promising alternative to classical cellular architectures, since they have the potential to provide uniform service quality and high resource utilisation over the entire coverage area of the network.
Tensor-Based Channel Estimation for RIS-Assisted Networks Operating Under Imperfections
Furthermore, the identifiability and computational complexity of the proposed algorithm are analyzed, and we study the effect of different imperfections on the channel estimation quality.
Optimizing Pilot Spacing in MU-MIMO Systems Operating Over Aging Channels
Our key insight is that to maximize the achievable SINR and the spectral efficiency of MU-MIMO systems, proper pilot spacing must be applied to control the impact of the aging channel and to tune the trade-off between pilot and data symbols.
On Estimating the Autoregressive Coefficients of Time-Varying Fading Channels
We propose a method for autoregressive parameter estimation for the single input multiple output (SIMO) channel.
On the Achievable SINR in MU-MIMO Systems Operating in Time-Varying Rayleigh Fading
Minimizing the symbol error in the uplink of multi-user multiple input multiple output systems is important, because the symbol error affects the achieved signal-to-interference-plus-noise ratio (SINR) and thereby the spectral efficiency of the system.
AI-Aided Integrated Terrestrial and Non-Terrestrial 6G Solutions for Sustainable Maritime Networking
The maritime industry is experiencing a technological revolution that affects shipbuilding, operation of both seagoing and inland vessels, cargo management, and working practices in harbors.
Simultaneous Wireless Information and Power Transfer for Federated Learning
We investigate the trade-off between the number of communication rounds and communication round time while harvesting energy to compensate the energy expenditure.
User Coordination for Fast Beam Training in FDD Multi-User Massive MIMO
Massive multiple-input multiple-output (mMIMO) communications are one of the enabling technologies of 5G and beyond networks.
