Sum-rate maximization for UAV-enabled two-way relay systems
In this paper, an Unmanned Aerial Vehicle (UAV)-enabled two-way relay system with Physical-layer Network Coding (PNC) protocol is considered. A rotary-wing UAV is applied as a mobile relay to assist two ground terminals for information interaction. Our goal is to maximize the sum-rate of the two-way...
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| Vydáno v: | Digital communications and networks Ročník 8; číslo 6; s. 1105 - 1114 |
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| Hlavní autoři: | , , , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
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Elsevier B.V
01.12.2022
Information Engineering School,Nanchang University,Nanchang,330031,China KeAi Communications Co., Ltd |
| Témata: | |
| ISSN: | 2352-8648, 2352-8648 |
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| Abstract | In this paper, an Unmanned Aerial Vehicle (UAV)-enabled two-way relay system with Physical-layer Network Coding (PNC) protocol is considered. A rotary-wing UAV is applied as a mobile relay to assist two ground terminals for information interaction. Our goal is to maximize the sum-rate of the two-way relay system subject to mobility constraints, propulsion power consumption constraints, and transmit power constraints. The formulated problem is not easy to solve directly because it is a mixed integer non-convex optimization problem. Therefore, we decompose it into three sub-problems, and use the mutation arithmetic of the Genetic Algorithm (GA) and Successive Convex Approximation (SCA) to dispose. Besides, a high-efficiency iterative algorithm is proposed to obtain a locally optimal solution by jointly optimizing the time slot pairing, the transmit power allocation, and the UAV trajectory design. Numerical results demonstrate that the proposed design achieves significant gains over the benchmark designs. |
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| AbstractList | In this paper, an Unmanned Aerial Vehicle (UAV)-enabled two-way relay system with Physical-layer Network Coding (PNC) protocol is considered. A rotary-wing UAV is applied as a mobile relay to assist two ground terminals for information interaction. Our goal is to maximize the sum-rate of the two-way relay system subject to mobility constraints, propulsion power consumption constraints, and transmit power constraints. The formulated problem is not easy to solve directly because it is a mixed integer non-convex optimization problem. Therefore, we decompose it into three sub-problems, and use the mutation arithmetic of the Genetic Algorithm (GA) and Successive Convex Approximation (SCA) to dispose. Besides, a high-efficiency iterative algorithm is proposed to obtain a locally optimal solution by jointly optimizing the time slot pairing, the transmit power allocation, and the UAV trajectory design. Numerical results demonstrate that the proposed design achieves significant gains over the benchmark designs. In this paper,an Unmanned Aerial Vehicle(UAV)-enabled two-way relay system with Physical-layer Network Coding(PNC)protocol is considered.A rotary-wing UAV is applied as a mobile relay to assist two ground ter-minals for information interaction.Our goal is to maximize the sum-rate of the two-way relay system subject to mobility constraints,propulsion power consumption constraints,and transmit power constraints.The formulated problem is not easy to solve directly because it is a mixed integer non-convex optimization problem.Therefore,we decompose it into three sub-problems,and use the mutation arithmetic of the Genetic Algorithm(GA)and Successive Convex Approximation(SCA)to dispose.Besides,a high-efficiency iterative algorithm is proposed to obtain a locally optimal solution by jointly optimizing the time slot pairing,the transmit power allocation,and the UAV trajectory design.Numerical results demonstrate that the proposed design achieves significant gains over the benchmark designs. |
| Author | Lu, Keju Xiao, Lin Liang, Yipeng Yang, Dingcheng Wu, Fahui |
| AuthorAffiliation | Information Engineering School,Nanchang University,Nanchang,330031,China |
| AuthorAffiliation_xml | – name: Information Engineering School,Nanchang University,Nanchang,330031,China |
| Author_xml | – sequence: 1 givenname: Keju orcidid: 0000-0001-8775-4590 surname: Lu fullname: Lu, Keju – sequence: 2 givenname: Fahui surname: Wu fullname: Wu, Fahui – sequence: 3 givenname: Lin surname: Xiao fullname: Xiao, Lin – sequence: 4 givenname: Yipeng orcidid: 0000-0002-5938-3611 surname: Liang fullname: Liang, Yipeng – sequence: 5 givenname: Dingcheng surname: Yang fullname: Yang, Dingcheng email: yangdingcheng@ncu.edu.cn |
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| Copyright | 2022 Chongqing University of Posts and Telecommunications Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| Keywords | UAV communication Time slot pairing Two-way relay Trajectory design |
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| Snippet | In this paper, an Unmanned Aerial Vehicle (UAV)-enabled two-way relay system with Physical-layer Network Coding (PNC) protocol is considered. A rotary-wing UAV... In this paper,an Unmanned Aerial Vehicle(UAV)-enabled two-way relay system with Physical-layer Network Coding(PNC)protocol is considered.A rotary-wing UAV is... |
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| SubjectTerms | Time slot pairing Trajectory design Two-way relay UAV communication |
| Title | Sum-rate maximization for UAV-enabled two-way relay systems |
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