Joint Trajectory and Communication Design for Secure UAV Networks
Joint Trajectory and Communication Design for Secure UAV Networks
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DOI：
10.1109/lcomm.2019.2898404
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发表时间：
2019-02
期刊：
影响因子：
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通讯作者：
Zhiyang Li;Ming Chen;Cunhua Pan;Nuo Huang;Zhaohui Yang;A. Nallanathan
中科院分区：
文献类型：
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作者：
Zhiyang Li;Ming Chen;Cunhua Pan;Nuo Huang;Zhaohui Yang;A. Nallanathan
这封信研究了窃听信道下无人机（UAV）飞行轨迹、下行链路传输功率和地面终端（GT）关联的联合优化问题。具体来说，我们考虑这样一种场景：无人机为一组 GT 提供服务，并最大化最小保密率以确保 GT 之间的公平性。为了解决非凸优化问题，我们开发了一种基于逐次凸逼近和交替方法的迭代算法。仿真结果表明，该算法是有效的，与传统飞行方案相比能够显着提高最低保密率。
This letter investigates a joint optimization problem of unmanned aerial vehicle (UAV) flight trajectory, downlink transmission power, and ground terminals (GTs) association under wiretap channels. Specifically, we consider a scenario where a UAV serves a group of GTs and maximizes the minimum secrecy rate to ensure the fairness among GTs. To solve the nonconvex optimization problem, we develop an iterative algorithm based on the successive convex approximation and alternating methods. The simulation results demonstrate that the proposed algorithm is effective and can significantly improve the minimum secrecy rate compared with the traditional flight scheme.