无人机辅助与智能反射面支持的太赫兹通信
信号处理
2021-03-02 v2
摘要
本文利用无人机(unmanned aerial vehicles, UAVs)与智能反射面(intelligent reflective surface, IRS)来支持太赫兹(THz)通信。为此,研究了无人机轨迹、IRS相移、THz子带分配与功率控制的联合优化,以最大化所有用户的最小平均可达速率。提出了一种基于带速率约束惩罚的连续凸近似(Successive Convex Approximation with the Rate constraint penalty, CAR)的迭代算法来获取无人机轨迹,并将IRS相移表示为引入定价因子后的闭式表达式。仿真结果表明,所提方案显著提升了整个系统的速率性能。
引用
@article{arxiv.2010.14223,
title = {UAV-Assisted and Intelligent Reflecting Surfaces-Supported Terahertz Communications},
author = {Yijin Pan and Kezhi Wang and Cunhua Pan and Huiling Zhu and Jiangzhou Wang},
journal= {arXiv preprint arXiv:2010.14223},
year = {2021}
}
备注
Accepted by IEEE Wireless Communications Letters. Keywords: Intelligent reflective surface (IRS), reconfigurable intelligent surface (RIS), terahertz (THz) communications, unmanned aerial vehicles (UAVs) communications