154 citations · 680 across the 60 of their papers we have counts for
14 papers · 2 filters
Low-Latency Multiuser Two-Way Wireless Relaying for Spectral and Energy Efficiencies
Zhichao Sheng, Hoang Duong Tuan, Trung Q. Duong +2
The paper considers two possible approaches, which enable multiple pairs of users to exchange information via multiple multi-antenna relays within one time-slot to save the communi…
Multi-cell Massive MIMO Beamforming in Assuring QoS for Large Numbers of Users
Long D. Nguyen, Hoang D. Tuan, Trung Q. Duong +1
Massive multi-input multi-output (MIMO) uses a very large number of low-power transmit antennas to serve much smaller numbers of users. The most widely proposed type of massive MIM…
Power Allocation for Energy Efficiency and Secrecy of Interference Wireless Networks
Zhichao Sheng, Hoang Duong Tuan, Ali Arshad Nasir +2
Considering a multi-user interference network with an eavesdropper, this paper aims at the power allocation to optimize the worst secrecy throughput among the network links or the…
Enhancing PHY Security of Cooperative Cognitive Radio Multicast Communications
Van-Dinh Nguyen, Trung Q. Duong, Oh-Soon Shin +2
In this paper, we propose a cooperative approach to improve the security of both primary and secondary systems in cognitive radio multicast communications. During their access to t…
On the Design of Secure Full-Duplex Multiuser Systems under User Grouping Method
Van-Dinh Nguyen, Hieu V. Nguyen, Octavia A. Dobre +1
Consider a full-duplex (FD) multiuser system where an FD base station (BS) is designed to simultaneously serve both downlink users and uplink users in the presence of half-duplex e…
Precoder Design for Signal Superposition in MIMO-NOMA Multicell Networks
Van-Dinh Nguyen, Hoang Duong Tuan, Trung Q. Duong +2
The throughput of users with poor channel conditions, such as those at a cell edge, is a bottleneck in wireless systems. A major part of the power budget must be allocated to serve…
Joint Fractional Time Allocation and Beamforming for Downlink Multiuser MISO Systems
Van-Dinh Nguyen, Hoang Duong Tuan, Trung Q. Duong +2
It is well-known that the traditional transmit beamforming at a base station (BS) to manage interference in serving multiple users is effective only when the number of users is les…
Energy Efficiency in Cell-Free Massive MIMO with Zero-Forcing Precoding Design
L. D. Nguyen, T. Q. Duong, H. Q. Ngo +1
We consider the downlink of a cell-free massive multiple-input multiple-output (MIMO) network where numerous distributed access points (APs) serve a smaller number of users under t…
How to Scale Up the Spectral Efficiency of Multi-way Massive MIMO Relaying?
Chung Duc Ho, Hien Quoc Ngo, Michail Matthaiou +1
This paper considers a decode-and-forward (DF) multi-way massive multiple-input multiple-output (MIMO) relay system where many users exchange their data with the aid of a relay sta…
Robust Beamforming for Secrecy Rate in Cooperative Cognitive Radio Multicast Communications
Van-Dinh Nguyen, Trung Q. Duong, Oh-Soon Shin +2
In this paper, we propose a cooperative approach to improve the security of both primary and secondary systems in cognitive radio multicast communications. During their access to t…
On the Total Energy Efficiency of Cell-Free Massive MIMO
Hien Quoc Ngo, Le-Nam Tran, Trung Q. Duong +2
We consider the cell-free massive multiple-input multiple-output (MIMO) downlink, where a very large number of distributed multiple-antenna access points (APs) serve many single-an…
Joint Power Allocation and Beamforming for Energy-Efficient Two-Way Multi-Relay Communications
Zhichao Sheng, Hoang D. Tuan, Trung Q. Duong +1
This paper considers the joint design of user power allocation and relay beamforming in relaying communications, in which multiple pairs of single-antenna users exchange informatio…
MIMO Beamforming for Secure and Energy-Efficient Wireless Communication
Nguyen T. Nghia, Hoang D. Tuan, Trung Q. Duong +1
Considering a multiple-user multiple-input multiple-output (MIMO) channel with an eavesdropper, this letter develops a beamformer design to optimize the energy efficiency in terms…
On the Performance of Zero-Forcing Processing in Multi-Way Massive MIMO Relay Networks
Chung Duc Ho, Hien Quoc Ngo, Michail Matthaiou +1
We consider a multi-way massive multiple-input multiple-output relay network with zero-forcing processing at the relay. By taking into account the time-division duplex protocol wit…