无人机全双工双向中继的资源及轨迹优化设计  

Resource and Trajectory Optimal Design for Unmanned Aerial Vehicles Full Duplex Two-Way Relay

作　　者：周理辉 肖霖[1] 吴法辉 杨鼎成[1] 王雅鹏 ZHOU Lihui;XIAO Lin;WU Fahui;YANG Dingcheng;WANG Yapeng(School of Information Engineering,Nanchang University,Nanchang 330031,China;School of Applied Sciences,Macao Polytechnic Institute,Macao 999078,China)

机构地区：[1]南昌大学信息工程学院,南昌330031 [2]澳门理工大学应用科学学院,中国澳门999078

出　　处：《北京邮电大学学报》2023年第1期77-83,共7页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(62061027)。

摘　　要：无人机具有按需部署、高移动性和灵活性的优点,基于无人机的全双工双向中继网络能够进一步提升中继的覆盖范围,增强通信性能。为此,考虑利用无人机辅助多对地面用户进行双向中继通信,通过对无人机的轨迹、用户调度和功率分配的联合优化,实现用户对之间的平均最小可达速率最大化,提出了基于块坐标下降和连续凸近似的迭代求解算法。仿真结果表明,所提算法有效地提高了系统性能。Unmanned aerial vehicles have the advantages of on-demand deployment,high mobility and flexibility.The unmanned aerial vehicles-based full-duplex two-way relay network can further improve the coverage of the relay and enhance the communication performance.Therefore,the unmanned aerial vehicles assisted multi-pair ground users are considered to carry out two-way relay communication,and the average minimum reachable rate between user pairs is maximized by jointly optimizing unmanned aerial vehicles'trajectory,user scheduling and power distribution.An iterative solution algorithm is proposed based on block coordinate descent and continuous convex approximation.Simulation results show that the proposed algorithm can effectively improve the system performance.

关 键 词：无人机通信 全双工双向中继 用户调度 轨迹优化 

分 类 号：TN925[电子电信—通信与信息系统]