DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kang, Joonhyuk | - |
dc.contributor.advisor | 강준혁 | - |
dc.contributor.author | Roh, Yujung | - |
dc.date.accessioned | 2021-05-13T19:34:36Z | - |
dc.date.available | 2021-05-13T19:34:36Z | - |
dc.date.issued | 2020 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=911422&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/284792 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 전기및전자공학부, 2020.2,[iii, 30 p. :] | - |
dc.description.abstract | An unmanned aerial vehicle (UAV)-aided network is becoming a promising application for the future wireless communication in both military and civilian fields, due to its advantages over traditional ground communication of the flexible deployment and dominant line-of-sight (LoS) channel. On the other hand, due to broadcast and LoS nature, there are challenges in that it is vulnerable in security, so many studies are being conducted to compensate for this. In this paper, we consider the UAV is operated as a cooperative jammer to enhance the physical layer security of the ground legitimated nodes in the presence of an eavesdropper (Eve). Furthermore, we assume that the UAV has imperfect information on the locations of the ground legitimated nodes and Eve due to GPS jamming and covert operation of Eve, respectively. We also further studied the extended situation where Eve is not single but multiple operation. With these uncertainties of the nodes' locations, we formulate a robust joint optimization problem of the UAV's jamming power and trajectory to maximize the average secrecy rate. To handle the non-convexity of the optimization problem, we propose an iterative suboptimal algorithm based on the block coordinate descent method. Simulation results present that the proposed algorithm has outstanding performance in terms of physical layer security compared to other benchmark methods. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | UAV-aided communications▼aphysical layer security▼acooperative UAV jammer▼apower allocation▼atrajectory design | - |
dc.subject | UAV 통신▼a물리 계층 보안▼a협력 UAV 재머▼a전력 할당▼a비행궤도 설계 | - |
dc.title | Cooperative UAV jammer for enhancing physical layer security | - |
dc.title.alternative | 무선통신 물리 계층 보안 강화를 위한 협업 UAV 재머 : 최적의 재밍 전력과 비행궤도 설계 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :전기및전자공학부, | - |
dc.contributor.alternativeauthor | 노유정 | - |
dc.title.subtitle | robust design for jamming power and trajectory | - |
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