38 citations · 101 across the 35 of their papers we have counts for
37 papers
Deep-Unfolded Accelerated Projected Gradient for Energy-Efficient Cell-Free Massive MIMO
Phuong Nam Tran, Nhan Thanh Nguyen, Hien Quoc Ngo +1
This paper investigates energy efficiency (EE) maximization for the downlink of cell-free massive multiple-input multiple-output systems under quality-of-service and per-access poi…
Deep-Unfolded Wideband ISAC Beamforming for DMA Under Frequency-Selective Lorentzian Model
Abdolrasoul Sakhaei Gharagezlou, Pouya Mobaraki, Mehdi Monemi +4
Integrated sensing and communications (ISAC), empowered by dynamic metasurface antennas (DMAs), has emerged as a promising paradigm for next-generation wireless networks. However,…
Resource Allocation and AoI-Aware Detection for ISAC with Stacked Intelligent Metasurfaces
Elaheh Ataeebojd, Nhan Thanh Nguyen, Seonghoon Yoo +4
Stacked intelligent metasurfaces (SIMs) provide wave-domain degrees of freedom that can empower integrated sensing and communication (ISAC) through flexible beampattern synthesis a…
Low-Complexity Cramér-Rao Lower Bound and Sum Rate Optimization in ISAC Systems
Tianyu Fang, Nhan Thanh Nguyen, Markku Juntti
While Cramér-Rao lower bound is an important metric in sensing functions in integrated sensing and communications (ISAC) designs, its optimization usually involves a computationall…
Deep Unfolding-Empowered MmWave Massive MIMO Joint Communications and Sensing
Nhan Thanh Nguyen, Ly V. Nguyen, Nir Shlezinger +3
In this paper, we propose a low-complexity and fast hybrid beamforming design for joint communications and sensing (JCAS) based on deep unfolding. We first derive closed-form expre…
Multi-Static Cell-Free Massive MIMO ISAC: Performance Analysis and Power Allocation
Nhan Thanh Nguyen, Tianyu Fang, Hien Quoc Ngo +1
In this work, we consider a cell-free massive multiple-input multiple-output (MIMO) integarted sensing and communications (ISAC) system with maximum-ratio transmission schemes comb…
Model-Based Machine Learning for Max-Min Fairness Beamforming Design in JCAS Systems
Mengyuan Ma, Tianyu Fang, Nir Shlezinger +3
Joint communications and sensing (JCAS) is expected to be a crucial technology for future wireless systems. This paper investigates beamforming design for a multi-user multi-target…
Digital and Hybrid Precoding Designs in Massive MIMO with Low-Resolution ADCs
Mengyuan Ma, Nhan Thanh Nguyen, Italo Atzeni +2
Low-resolution analog-to-digital converters (ADCs) have emerged as an efficient solution for massive multiple-input multiple-output (MIMO) systems to reap high data rates with reas…
Beamforming Design for Max-Min Fairness Performance Balancing in ISAC Systems
Tianyu Fang, Nhan Thanh Nguyen, Markku Juntti
Integrated sensing and communications (ISAC) is envisioned as a key technology for future wireless communications. In this paper, we consider a downlink monostatic ISAC system wher…
Hybrid Receiver Design for Massive MIMO-OFDM with Low-Resolution ADCs and Oversampling
Mengyuan Ma, Nhan Thanh Nguyen, Italo Atzeni +1
Low-resolution analog-to-digital converters (ADCs) and hybrid beamforming have emerged as efficient solutions to reduce power consumption with satisfactory spectral efficiency (SE)…
Joint Communications and Sensing Hybrid Beamforming Design via Deep Unfolding
Nhan Thanh Nguyen, Ly V. Nguyen, Nir Shlezinger +3
Joint communications and sensing (JCAS) is envisioned as a key feature in future wireless communications networks. In massive MIMO-JCAS systems, hybrid beamforming (HBF) is typical…
Deep Unfolding Enabled Constant Modulus Waveform Design for Joint Communications and Sensing
Prashanth Krishnananthalingam, Nhan Thanh Nguyen, Markku Juntti
Joint communications and sensing (JCAS) systems have recently emerged as a promising technology to utilize the scarce spectrum in wireless networks and to reuse the same hardware t…
Joint Communications and Sensing Design for Multi-Carrier MIMO Systems
Nhan Thanh Nguyen, Nir Shlezinger, Khac-Hoang Ngo +2
In conventional joint communications and sensing (JCAS) designs for multi-carrier multiple-input multiple-output (MIMO) systems, the dual-functional waveforms are often optimized f…
Analysis of Oversampling in Uplink Massive MIMO-OFDM with Low-Resolution ADCs
Mengyuan Ma, Nhan Thanh Nguyen, Italo Atzeni +1
Low-resolution analog-to-digital converters (ADCs) have emerged as an efficient solution for massive multiple-input multiple-output (MIMO) systems to reap high data rates with reas…
Fairness Enhancement of UAV Systems with Hybrid Active-Passive RIS
Nhan Thanh Nguyen, Van-Dinh Nguyen, Hieu Van Nguyen +4
We consider unmanned aerial vehicle (UAV)-enabled wireless systems where downlink communications between a multi-antenna UAV and multiple users are assisted by a hybrid active-pass…
AI-Empowered Hybrid MIMO Beamforming
Nir Shlezinger, Mengyuan Ma, Ortal Lavi +3
Hybrid multiple-input multiple-output (MIMO) is an attractive technology for realizing extreme massive MIMO systems envisioned for future wireless communications in a scalable and…
Deep Unfolding Hybrid Beamforming Designs for THz Massive MIMO Systems
Nhan Thanh Nguyen, Mengyuan Ma, Nir Shlezinger +3
Hybrid beamforming (HBF) is a key enabler for wideband terahertz (THz) massive multiple-input multiple-output (mMIMO) communications systems. A core challenge with designing HBF sy…
Network-Aided Intelligent Traffic Steering in 6G O-RAN: A Multi-Layer Optimization Framework
Van-Dinh Nguyen, Thang X. Vu, Nhan Thanh Nguyen +6
To enable an intelligent, programmable and multi-vendor radio access network (RAN) for 6G networks, considerable efforts have been made in standardization and development of open R…
Switch-based Hybrid Beamforming Transceiver Design for Wideband Communications with Beam Squint
Mengyuan Ma, Nhan Thanh Nguyen, Markku Juntti
Hybrid beamforming (HBF) transceiver architectures based on frequency-independent phase shifters (PS-HBF) are sensitive to the phases and physical directions with limited capabilit…
Secrecy Capacity Maximization for a Hybrid Relay-RIS Scheme in mmWave MIMO Networks
Edson Nobuyuki Egashira, Diana Pamela Moya Osorio, Nhan Thanh Nguyen +1
The hybrid relay-reflecting intelligent surface (HR-RIS) has been recently introduced as an efficient solution to overcome the double path loss and limited beamforming diversity of…
Leveraging Deep Neural Networks for Massive MIMO Data Detection
Ly V. Nguyen, Nhan T. Nguyen, Nghi H. Tran +3
Massive multiple-input multiple-output (MIMO) is a key technology for emerging next-generation wireless systems. Utilizing large antenna arrays at base-stations, massive MIMO enabl…
Hybrid Active-Passive Reconfigurable Intelligent Surface-Assisted Multi-User MISO Systems
Nhan Thanh Nguyen, Van-Dinh Nguyen, Qingqing Wu +3
We consider a multi-user multiple-input single-output (MISO) communications system which is assisted by a hybrid active-passive reconfigurable intelligent surface (RIS). Unlike con…
Switch-based Hybrid Beamforming for Wideband Multi-carrier Communications
Mengyuan Ma, Nhan Thanh Nguyen, Markku Juntti
Switch-based hybrid beamforming (SW-HBF) architectures are promising for realizing massive multiple-input multiple-output (MIMO) communications systems because of their low cost an…
Low-Latency and Secure Computation Offloading Assisted by Hybrid Relay-Reflecting Intelligent Surface
Khac-Hoang Ngo, Nhan Thanh Nguyen, Thinh Quang Dinh +2
Recently, the hybrid relay-reflecting intelligent surface (HRRIS) has been introduced as a spectral- and energy-efficient architecture to assist wireless communication systems. In…