Article (Scientific journals)
Performance optimization for hybrid TS/PS SWIPT UAV in cooperative NOMA IoT networks
Vo, Van Nhan; Dang, Viet-Hung; Tran, Hung et al.
2024In Alexandria Engineering Journal, 107, p. 559 - 567
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Keywords :
Bat algorithm optimization; Cooperative NOMA; Hybrid TS/PS; Outage probability; UAV; Aerial vehicle; Algorithms optimizations; Bat algorithms; Cooperative non-orthogonal multiple access; Hybrid time switching/power splitting; Multiple access; Non-orthogonal; Power splitting; Switching power; Time switching; Unmanned aerial vehicle; Engineering (all)
Abstract :
[en] This study examines a cooperative non-orthogonal multiple access (NOMA) network utilizing an energy-constrained unmanned aerial vehicle (UAV) relay (UAVR) to expand coverage and improve network throughput. In order to provide energy to the UAVR, we consider the hybrid simultaneous wireless information and power transmission (SWIPT) method, which allows the UAVR to harvest energy from the source (i.e., sink node) signal. Herein, a hybrid time switching (TS)-based and power splitting (PS)-based relaying scheme is applied to improve the UAVR's energy harvesting (EH) efficiency and the system performance. Given this context, we derive the closed-form expression of the outage probability (OP) for the sensors to evaluate the network performance. Based on the achieved analytical results, we apply the bat algorithm optimization (BAO) method to determine the optimal working point (as a fraction of received power and power allocation coefficients, and the 3-D positions of the UAVR) for the system such that the OP is minimized. The numerical analysis indicates that BAO is effective in both exploring and exploiting solutions, making it a suitable choice for similar non-convex optimization problems in continuous search spaces for cooperative NOMA IoT networks.
Disciplines :
Computer science
Author, co-author :
Vo, Van Nhan;  Faculty of Information Technology, Duy Tan University, Da Nang, Viet Nam ; Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam
Dang, Viet-Hung;  Faculty of Information Technology, Duy Tan University, Da Nang, Viet Nam ; Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam
Tran, Hung ;  DATCOM Lab, Faculty of Data Science and Artificial Intelligence, College of Technology, National Economics University, Hanoi, Viet Nam
Tran, Duc-Dung;  Interdisciplinary Center for Security, Reliability and Trust (SnT), University of Luxembourg, Esch-sur-Alzette, Luxembourg
CHATZINOTAS, Symeon  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Quoc, Hai Le;  Department of Information Technology, Quang Tri College, Quang Tri, Viet Nam
So-In, Chakchai ;  Applied Network Technology (ANT), College of Computing, Khon Kaen University, Khon Kaen, Thailand
Truong, Van-Truong ;  Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam ; Faculty of Electrical and Electronic Engineering, Duy Tan University, Da Nang, Viet Nam
Ho, Tu Dac ;  Faculty of Information Technology and Electrical Engineering, NTNU- Norwegian University of Science and Technology, Trondheim, Norway ; Faculty of Engineering Science and Technology, UiT- The Arctic University of Norway, Narvik, Norway
External co-authors :
yes
Language :
English
Title :
Performance optimization for hybrid TS/PS SWIPT UAV in cooperative NOMA IoT networks
Publication date :
November 2024
Journal title :
Alexandria Engineering Journal
ISSN :
1110-0168
Publisher :
Elsevier B.V.
Volume :
107
Pages :
559 - 567
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This work was supported by grants from the Norwegian University of Science and Technology (NTNU) and Duy Tan University.
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