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Found 17 papers, 2 papers with code
CRB Minimization for RIS-aided mmWave Integrated Sensing and Communications
In this paper, reconfigurable intelligent surface (RIS) is employed in a millimeter wave (mmWave) integrated sensing and communications (ISAC) system.
Mutual Information-Based Integrated Sensing and Communications: A WMMSE Framework
In this letter, a weighted minimum mean square error (WMMSE) empowered integrated sensing and communication (ISAC) system is investigated.
Enhancing Near-Field Sensing and Communications with Sparse Arrays: Potentials, Challenges, and Emerging Trends
Nevertheless, XL-arrays introduce deviations in electromagnetic propagation compared to traditional arrays, fundamentally challenging the assumption with the planar-wave model.
Performance Bounds for Near-Field Localization with Widely-Spaced Multi-Subarray mmWave/THz MIMO
By employing the Riemann sum, closed-form CRB expressions are derived for the spherical wavefront-based WSMS (SW-WSMS).
Hybrid NOMA assisted Integrated Sensing and Communication via RIS
Furthermore, the trade-off between sensing and communication is analyzed and demonstrated in the simulation results.
Energy-Efficient Cell-Free Network Assisted by Hybrid RISs
The proposed hybrid RISs schemes can achieve 92% of the sum rate but 188% of EE of active RISs schemes.
Bayesian Optimization-Based Beam Alignment for MmWave MIMO Communication Systems
In this work, we investigate the issue of mmWave BA and present a novel beam alignment scheme on the basis of a machine learning strategy, Bayesian optimization (BO).
Channel Estimation for Reconfigurable Intelligent Surface-Assisted Cell-Free Communications
Recent research has focused on reconfigurable intelligent surface (RIS)-assisted cell-free systems with the goal of enhancing coverage and lowering the cost of cell-free networks.
Fast Compressive Channel Estimation for MmWave MIMO Hybrid Beamforming Systems
Given the high degree of computational complexity of the channel estimation technique based on the conventional one-dimensional (1-D) compressive sensing (CS) framework employed in the hybrid beamforming architecture, this study proposes two low-complexity channel estimation strategies.
Low-complexity Sparse Array Synthesis Based on Off-grid Compressive Sensing
A novel sparse array synthesis method for non-uniform planar arrays is proposed, which belongs to compressive sensing (CS)-based systhesis.
Age Minimization in Outdoor and Indoor Communications with Relay-aided Dual RIS
In this paper, we investigate an outdoor and indoor wireless communication network with the assistance of a novel relay-aided double-sided reconfigurable intelligent surface (RIS).
An Off-grid Compressive Sensing Strategy for the Subarray Synthesis of Non-uniform Linear Arrays
Finally, our simulation results reveal that it is of paramount significance to optimize antenna elements positions for the subarray synthesis performance on the one hand and demonstrate the excellent performances of proposed schemes in comparison with other competitive state-of-the-art subarray synthesis methods on the other hand.
Optimizing the Age of Information in RIS-aided SWIPT Networks
In this letter, a reconfigurable intelligent surface (RIS)-assisted simultaneous wireless information and power transfer (SWIPT) network is investigated.
Sum-Rate Maximization in Distributed Intelligent Reflecting Surfaces-Aided mmWave Communications
The solution to transmit beamforming at the BS and the phase shifts at the IRS are derived by using the successive convex approximation (SCA)-based algorithm, and a greedy algorithm is proposed to design the IRS switch vector.
Secrecy Rate Maximization for Reconfigurable Intelligent Surface Aided Millimeter Wave System with Low-resolution DAC
In this letter, we investigate the secrecy rate of an reconfigurable intelligent surface (RIS)-aided millimeter-wave (mmWave) system with hardware limitations.
Reconfigurable Intelligent Surfaces Aided mmWave NOMA: Joint Power Allocation,Phase Shifts, and Hybrid Beamforming Optimization
Then, we solve the power allocation problem under fixed phase shifts of the RIS and hybrid beamforming.
Secure Beamforming for Multiple Intelligent Reflecting Surfaces Aided mmWave Systems
In this system, the secrecy rate is maximized by controlling the on-off status of each IRS as well as optimizing the phase shift matrix of the IRSs.
