Article (Périodiques scientifiques)
Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSI
AlJubayrin, Saad; Al-Wesabi, Fahd N.; Alsolai, Hadeel et al.
2022In Drones
Peer reviewed vérifié par ORBi
 

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Mots-clés :
UAV; ambient backscatter communications; Non-orthogonal multiple access
Résumé :
[en] The recent combination of ambient backscatter communication (ABC) with non-orthogonal multiple access (NOMA) has shown great potential for connecting large-scale Internet of Things (IoT) in future unmanned aerial vehicle (UAV) networks. The basic idea of ABC is to provide battery-free transmission by harvesting the energy of existing RF signals of WiFi, TV towers, and cellular base stations/UAV. ABC uses smart sensor tags to modulate and reflect data among wireless devices. On the other side, NOMA makes possible the communication of more than one IoT on the same frequency. In this work, we provide an energy efficient transmission design ABC-aided UAV network using NOMA. This work aims to optimize the power consumption of a UAV system while ensuring the minimum data rate of IoT. Specifically, the transmit power of UAVs and the reflection coefficient of the ABC system are simultaneously optimized under the assumption of imperfect channel state information (CSI). Due to co-channel interference among UAVs, imperfect CSI, and NOMA interference, the joint optimization problem is formulated as non-convex, which involves high complexity and makes it hard to obtain the optimal solution. Thus, it is first transformed and then solved by a sub-gradient method with low complexity. In addition, a conventional NOMA UAV framework is also studied for comparison without involving ABC. Numerical results demonstrate the benefits of using ABC in a NOMA UAV network compared to the conventional UAV framework.
Disciplines :
Ingénierie électrique & électronique
Auteur, co-auteur :
AlJubayrin, Saad
Al-Wesabi, Fahd N.
Alsolai, Hadeel
Al Duhayyim, Mesfer
K. Nour, Mohamed
KHAN, Wali Ullah  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
MAHMOOD, Asad  ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > SigCom
Rabie, Khaled
Shongwe, Thokozani
Co-auteurs externes :
yes
Langue du document :
Anglais
Titre :
Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSI
Titre traduit :
[en] Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSI
Date de publication/diffusion :
28 juillet 2022
Titre du périodique :
Drones
eISSN :
2504-446X
Maison d'édition :
MDPI AG, Suisse
Peer reviewed :
Peer reviewed vérifié par ORBi
Focus Area :
Security, Reliability and Trust
Disponible sur ORBilu :
depuis le 25 janvier 2023

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