Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSI
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 b...
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| Format: | Article |
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MDPI AG
2022-07-01
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| Series: | Drones |
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| Online Access: | https://www.mdpi.com/2504-446X/6/8/190 |
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| author | Saad AlJubayrin Fahd N. Al-Wesabi Hadeel Alsolai Mesfer Al Duhayyim Mohamed K. Nour Wali Ullah Khan Asad Mahmood Khaled Rabie Thokozani Shongwe |
| author_facet | Saad AlJubayrin Fahd N. Al-Wesabi Hadeel Alsolai Mesfer Al Duhayyim Mohamed K. Nour Wali Ullah Khan Asad Mahmood Khaled Rabie Thokozani Shongwe |
| author_sort | Saad AlJubayrin |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-09T09:58:45Z |
| format | Article |
| id | doaj.art-d3bf7add75f747d0a2c0bef5da12ece3 |
| institution | Directory Open Access Journal |
| issn | 2504-446X |
| language | English |
| last_indexed | 2024-03-09T09:58:45Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Drones |
| spelling | doaj.art-d3bf7add75f747d0a2c0bef5da12ece32023-12-01T23:37:33ZengMDPI AGDrones2504-446X2022-07-016819010.3390/drones6080190Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSISaad AlJubayrin0Fahd N. Al-Wesabi1Hadeel Alsolai2Mesfer Al Duhayyim3Mohamed K. Nour4Wali Ullah Khan5Asad Mahmood6Khaled Rabie7Thokozani Shongwe8Department of Computer Science, College of Computing and Information Technology, Shaqra University, Shaqraa 11911, Saudi ArabiaDepartment of Computer Science, College of Science & Art at Mahayil, King Khalid University, Abha 62529, Saudi ArabiaDepartment of Information Systems, College of Computer and Information Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi ArabiaDepartment of Computer Science, College of Sciences and Humanities-Aflaj, Prince Sattam bin Abdulaziz University, Al-Kharj 16278, Saudi ArabiaDepartment of Computer Sciences, College of Computing and Information System, Umm Al-Qura University, Mecca 24382, Saudi ArabiaInterdisciplinary Centre for Security, Reliability and Trust (SnT), University of Luxembourg, 1855 Luxembourg, LuxembourgInterdisciplinary Centre for Security, Reliability and Trust (SnT), University of Luxembourg, 1855 Luxembourg, LuxembourgDepartment of Engineering, Manchester Metropolitan University, Manchester M15 6BH, UKDepartment of Electrical and Electronic Engineering Technology, University of Johannesburg, Doornfontein, P.O. Box 17011, Johannesburg 2028, South AfricaThe 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.https://www.mdpi.com/2504-446X/6/8/190ambient backscatter communication (ABC)non-orthogonal multiple access (NOMA)Internet of Things (IoT)unmanned aerial vehicles (UAVs) |
| spellingShingle | Saad AlJubayrin Fahd N. Al-Wesabi Hadeel Alsolai Mesfer Al Duhayyim Mohamed K. Nour Wali Ullah Khan Asad Mahmood Khaled Rabie Thokozani Shongwe Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSI Drones ambient backscatter communication (ABC) non-orthogonal multiple access (NOMA) Internet of Things (IoT) unmanned aerial vehicles (UAVs) |
| title | Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSI |
| title_full | Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSI |
| title_fullStr | Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSI |
| title_full_unstemmed | Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSI |
| title_short | Energy Efficient Transmission Design for NOMA Backscatter-Aided UAV Networks with Imperfect CSI |
| title_sort | energy efficient transmission design for noma backscatter aided uav networks with imperfect csi |
| topic | ambient backscatter communication (ABC) non-orthogonal multiple access (NOMA) Internet of Things (IoT) unmanned aerial vehicles (UAVs) |
| url | https://www.mdpi.com/2504-446X/6/8/190 |
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