Robust Trajectory and Resource Allocation Design for Secure UAV-aided Communications

Xiaofang Sun; Chao Shen; Derrick Wing Kwan Ng; Zhangdui Zhong

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arXiv · 1903.07238

Robust Trajectory and Resource Allocation Design for Secure UAV-aided Communications

Xiaofang Sun·Chao Shen·Derrick Wing Kwan Ng·Zhangdui Zhong

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Abstract

This paper aims to enhance the physical layer security against potential internal eavesdroppings by exploiting the maneuverability of an unmanned aerial vehicle (UAV). We consider a scenario where two receivers with different security clearance levels require to be served by a legitimate transmitter with the aid of the UAV. We jointly design the trajectory and resource allocation to maximize the accumulated system confidential data rate. The design is formulated as a mixed-integer non-convex optimization problem which takes into account the partial position information of a potential eavesdropper. To circumvent the problem non-convexity, a series of transformations and approximations are proposed which facilitates the design of a computationally efficient suboptimal solution. Simulation results are presented to provide important system design insights and demonstrate the advantages brought by the robust joint design for enhancing the physical layer security.

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BibTeX RIS

Xiaofang Sun, Chao Shen, Derrick Wing Kwan Ng, Zhangdui Zhong. 2019-03-18. Robust Trajectory and Resource Allocation Design for Secure UAV-aided Communications. https://arxiv.org/abs/1903.07238

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