30 citations · 37 across the 9 of their papers we have counts for
7 papers · 1 filter
Joint UAV Placement and IRS Phase Shift Optimization in Downlink Networks
Hung Nguyen-Kha, Hieu V. Nguyen, Mai T. P. Le +1
This study investigates the integration of an intelligent reflecting surface (IRS) into an unmanned aerial vehicle (UAV) platform to utilize the advantages of these leading technol…
A Novel Heap-based Pilot Assignment for Full Duplex Cell-Free Massive MIMO with Zero-Forcing
Hieu V. Nguyen, Van-Dinh Nguyen, Octavia A. Dobre +4
This paper investigates the combined benefits of full-duplex (FD) and cell-free massive multiple-input multipleoutput (CF-mMIMO), where a large number of distributed access points…
Dynamic User Pairing for Non-Orthogonal Multiple Access in Downlink Networks
Kha-Hung Nguyen, Hieu V. Nguyen, Van-Phuc Bui +1
This paper considers a downlink (DL) system where non-orthogonal multiple access (NOMA) beamforming and dynamic user pairing are jointly optimized to maximize the minimum throughpu…
UAV-Assisted Secure Communications in Terrestrial Cognitive Radio Networks: Joint Power Control and 3D Trajectory Optimization
Phu X. Nguyen, Van-Dinh Nguyen, Hieu V. Nguyen +1
This paper considers secure communications for an underlay cognitive radio network (CRN) in the presence of an external eavesdropper (Eve). The secrecy performance of CRNs is usual…
On the Spectral and Energy Efficiencies of Full-Duplex Cell-Free Massive MIMO
Hieu V. Nguyen, Van-Dinh Nguyen, Octavia A. Dobre +4
In-band full-duplex (FD) operation is practically more suited for short-range communications such as WiFi and small-cell networks, due to its current practical limitations on the s…
Joint Power Control and User Association for NOMA-Based Full-Duplex Systems
Hieu V. Nguyen, Van-Dinh Nguyen, Octavia A. Dobre +3
This paper investigates the coexistence of non-orthogonal multiple access (NOMA) and full-duplex (FD) to improve both spectral efficiency (SE) and user fairness. In such a scenario…
Joint Antenna Array Mode Selection and User Assignment for Full-Duplex MU-MISO Systems
Hieu V. Nguyen, Van-Dinh Nguyen, Octavia A. Dobre +2
This paper considers a full-duplex (FD) multiuser multiple-input single-output system where a base station simultaneously serves both uplink (UL) and downlink (DL) users on the sam…