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Throughput improvement for multi-hop UAV relaying
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Fan, Jingyao, Cui, Miao, Zhang, Guangchi and Chen, Yunfei (2019) Throughput improvement for multi-hop UAV relaying. IEEE Access, 7 . pp. 147732-147742. doi:10.1109/ACCESS.2019.2946353 ISSN 2169-3536.
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Official URL: https://doi.org/10.1109/ACCESS.2019.2946353
Abstract
Unmanned aerial vehicle (UAV) relaying is one of the main technologies for UAV communications. It uses UAVs as relays in the sky to provide reliable wireless connection between remote users. In this paper, we consider a multi-hop UAV relaying system. To improve the spectrum efficiency of the system, we maximize the average end-to-end throughput from the source to the destination by jointly optimizing the bandwidth allocated to each hop, the transmit power for the source and relays, and the trajectories of the UAVs, subject to constraints on the total spectrum bandwidth, the average and peak transmit power, the UAV mobility and collision avoidance, and the information-causality of multi-hop relaying. The formulated optimization is non-convex. We propose an efficient algorithm to approximate and solve it, using the alternating optimization and successive convex optimization methods. Numerical results show that the proposed optimization significantly outperforms other benchmark schemes, verifying the effectiveness of our scheme.
| Item Type: | Journal Article | ||||||||||||||||||
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| Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics | ||||||||||||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Wireless communication systems, Drone aircraft -- Control systems, Drone aircraft in remote sensing, Data compression (Telecommunication), Multiuser detection (Telecommunication) | ||||||||||||||||||
| Journal or Publication Title: | IEEE Access | ||||||||||||||||||
| Publisher: | IEEE | ||||||||||||||||||
| ISSN: | 2169-3536 | ||||||||||||||||||
| Official Date: | 9 October 2019 | ||||||||||||||||||
| Dates: |
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| Volume: | 7 | ||||||||||||||||||
| Page Range: | pp. 147732-147742 | ||||||||||||||||||
| DOI: | 10.1109/ACCESS.2019.2946353 | ||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||
| Reuse Statement (publisher, data, author rights): | © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | ||||||||||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||||||||
| Date of first compliant deposit: | 9 October 2019 | ||||||||||||||||||
| Date of first compliant Open Access: | 9 October 2019 | ||||||||||||||||||
| RIOXX Funder/Project Grant: |
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