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UAV relaying assisted secure transmission with caching
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Cheng, Fen, Gui, Guan, Zhao, Nan, Chen, Yunfei, Tang, Jie and Sari, Hikmet (2019) UAV relaying assisted secure transmission with caching. IEEE Transactions on Communications, 67 (5). pp. 3140-3153. doi:10.1109/TCOMM.2019.2895088 ISSN 0090-6778.
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WRAP-UAV-relaying-assisted-secure-transmission-caching-Chen-2019.pdf - Accepted Version - Requires a PDF viewer. Download (4Mb) | Preview |
Official URL: https://doi.org/10.1109/TCOMM.2019.2895088
Abstract
Unmanned aerial vehicle (UAV) can be utilized as a relay to connect nodes with long distance, which can achieve significant throughput gain owing to its mobility and line-of-sight (LoS) channel with ground nodes. However, such LoS channels make UAV transmission easy to eavesdrop. In this paper, we propose a novel scheme to guarantee the security of UAV-relayed wireless networks with caching via jointly optimizing the UAV trajectory and time scheduling. For every two users that have cached the required file for the other, the UAV broadcasts the files together to these two users and the eavesdropping can be disrupted. For the users without caching, we maximize their minimum average secrecy rate by jointly optimizing the trajectory and scheduling, with the secrecy rate of the caching users satisfied. The corresponding optimization problem is difficult to solve due to its non-convexity, and we propose an iterative algorithm via successive convex optimization to solve it approximatively. Furthermore, we also consider a benchmark scheme in which we maximize the minimum average secrecy rate among all users by jointly optimizing the UAV trajectory and time scheduling when no user has the caching ability. Simulation results are provided to show the effectiveness and efficiency of our proposed scheme.
Item Type: | Journal Article | |||||||||||||||
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Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | |||||||||||||||
Library of Congress Subject Headings (LCSH): | Wireless communication systems, Drone aircraft | |||||||||||||||
Journal or Publication Title: | IEEE Transactions on Communications | |||||||||||||||
Publisher: | IEEE | |||||||||||||||
ISSN: | 0090-6778 | |||||||||||||||
Official Date: | May 2019 | |||||||||||||||
Dates: |
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Volume: | 67 | |||||||||||||||
Number: | 5 | |||||||||||||||
Page Range: | pp. 3140-3153 | |||||||||||||||
DOI: | 10.1109/TCOMM.2019.2895088 | |||||||||||||||
Status: | Peer Reviewed | |||||||||||||||
Publication Status: | Published | |||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
Date of first compliant deposit: | 12 February 2019 | |||||||||||||||
Date of first compliant Open Access: | 12 February 2019 | |||||||||||||||
RIOXX Funder/Project Grant: |
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