Abstract
This letter investigates the physical layer security issue in unmanned aerial vehicle (UAV) communication networks. Specifically, two UAVs transmit confidential messages to their specified ground destinations by sharing the same spectrum, while a ground eavesdropper attempts to wiretap the confidential messages. In the considered scenario, although mutual interferences arising from spectrum sharing may lower the spectral efficiency, the overhearing effect may also be alleviated as these two UAVs inherently act as cooperative jammers for each other. Motivated by this, a cooperation strategy is designed to combat eavesdropping, so that the system secrecy rate can be maximized. To this end, an iterative algorithm is proposed to jointly optimize the trajectory and transmit power of both UAVs. Simulations demonstrate that our proposed scheme can achieve significant secrecy rate gain in comparison with the benchmarks.
| Original language | English (US) |
|---|---|
| Article number | 8902014 |
| Pages (from-to) | 326-330 |
| Number of pages | 5 |
| Journal | IEEE Wireless Communications Letters |
| Volume | 9 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2020 |
| Externally published | Yes |
Bibliographical note
Funding Information:This work was supported in part by NSF under Grant CPS-1932413 and Grant ECCS-1935915, in part by the National Science and Technology Major Program of the Ministry of Science and Technology under Grant 2018ZX03001031, in part by the Key Program of Beijing Municipal Natural Science Foundation under Grant L172030, in part by the Key Project of State Key Lab of Networking and Switching Technology under Grant NST20170205, in part by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China under Grant 2012BAF14B01, in part by the National Key Research and Development Project under Grant 2017YFE0119300, in part by the National Natural Science Foundation of China under Grant 61901302, in part by the open research fund of National Mobile Communications Research Laboratory, Southeast University under Grant 2020D01, and in part by the China Scholarship Council under Grant 201806470003.
Funding Information:
Manuscript received September 1, 2019; revised November 1, 2019; accepted November 8, 2019. Date of publication November 15, 2019; date of current version March 9, 2020. This work was supported in part by NSF under Grant CPS-1932413 and Grant ECCS-1935915, in part by the National Science and Technology Major Program of the Ministry of Science and Technology under Grant 2018ZX03001031, in part by the Key Program of Beijing Municipal Natural Science Foundation under Grant L172030, in part by the Key Project of State Key Lab of Networking and Switching Technology under Grant NST20170205, in part by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China under Grant 2012BAF14B01, in part by the National Key Research and Development Project under Grant 2017YFE0119300, in part by the National Natural Science Foundation of China under Grant 61901302, in part by the open research fund of National Mobile Communications Research Laboratory, Southeast University under Grant 2020D01, and in part by the China Scholarship Council under Grant 201806470003. The associate editor coordinating the review of this article and approving it for publication was J. Xu. (Corresponding author: Jianhua Zhang.) Y. Li is with the Key Laboratory of Universal Wireless Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China, and also with the Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 80523 USA (e-mail: [email protected]).
Publisher Copyright:
© 2019 IEEE.
Keywords
- Physical layer security
- UAV communications
- cooperative jamming
- spectrum sharing