UAV relay-assisted emergency communications in IoT networks: Resource allocation and trajectory optimization

DH Tran, VD Nguyen, S Chatzinotas… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Unmanned aerial vehicle (UAV) communication has emerged as a prominent technology for
emergency communications (eg, natural disaster) in the Internet of Things (IoT) networks to …

Energy efficiency maximization in RIS-aided cell-free network with limited backhaul

QN Le, VD Nguyen, OA Dobre… - IEEE Communications …, 2021 - ieeexplore.ieee.org
Integrating the reconfigurable intelligent surface in a cell-free (RIS-CF) network is an
effective solution to improve the capacity and coverage of future wireless systems with low …

Joint user selection and transceiver design for cell-free with network-assisted full duplexing

X Xia, P Zhu, J Li, H Wu, D Wang… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
In this paper, we investigate the problem of sum rate maximization by guaranteeing the
quality of service (QoS) of both uplink and downlink in cell-free with network-assisted full …

UAV-assisted secure communications in terrestrial cognitive radio networks: Joint power control and 3D trajectory optimization

PX Nguyen, VD Nguyen, HV Nguyen… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
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 …

QoS-guaranteed resource allocation for full-duplex networks with M2M/H2H co-existence under imperfect CSI

D Yu, Y Liu, H Zhang - IEEE Transactions on Communications, 2021 - ieeexplore.ieee.org
To enhance spectrum efficiency for the future Internet-of-Things, in this paper, we investigate
the joint subcarrier and power allocation problem for a full-duplex network with machine-to …

On spectrum-efficient routing in interference-limited full-duplex multihop wireless networks

M Saad, S Abdallah - IEEE Access, 2021 - ieeexplore.ieee.org
The problem of finding the route with maximum end-to-end spectral efficiency in a multihop
wireless network has been subject to considerable interest in the recent literature. It has …

Dynamic user pairing for non-orthogonal multiple access in downlink networks

KH Nguyen, HV Nguyen, VP Bui… - 2020 IEEE Eighth …, 2021 - ieeexplore.ieee.org
This paper considers a downlink (DL) system where non-orthogonal multiple access
(NOMA) beamforming and dynamic user pairing are jointly optimized to maximize the …

UAV‐Enabled Cooperative Jamming for Physical Layer Security in Cognitive Radio Network

PX Nguyen, HV Nguyen, VD Nguyen… - Autonomous airborne …, 2021 - Wiley Online Library
This chapter proposes a new method that uses a cooperative unmanned aerial vehicle
(UAV) as a friendly jammer to enhance the security performance of cognitive radio networks …

Secure transmission design based on the geographical location of eavesdropper

T Li, Y Li, OA Dobre - … on Personal, Indoor and Mobile Radio …, 2021 - ieeexplore.ieee.org
In physical layer security, the geographical secure region as a practical security metric has
received considerable interest. This paper derives the distribution functions of signal-to …

[PDF][PDF] 5G AND BEYOND NETWORKS WITH UAV: TRAJECTORY DESIGN AND RESOURCE ALLOCATION

H Tran Dinh - 2021 - orbilu.uni.lu
Over the past few years, unmanned aerial vehicle (UAV)-enabled wireless communications
have attracted considerable attention from both academia and industry due to their high …