论文标题
IRS辅助无线网络的被动横梁成形
Passive Beamforming for IRS Aided Wireless Networks
论文作者
论文摘要
在这封信中，我们在智能反射表面（IRS）辅助多用户无线网络中设计被动横梁。考虑了两种不同的情况，即多播和多用户下行链路传输。在两种情况下，我们优化了IRS的无源波束形成向量，以最大化用户的最小信噪比。基于乘数算法的交替方向方法，低复杂性方法的设计旨在迭代解决已建立的问题。在所提出方法的每次迭代中，解决方案都处于封闭形式，因此计算复杂性很低。提出了数值结果以显示所提出的方法的效率。
In this letter, we design passive beamforming in an intelligent reflecting surface (IRS) assisted multiple-user wireless network. Two different scenarios are considered, namely, multicasting and multi-user downlink transmission. We optimize the passive beamforming vector of the IRS to maximize the smallest signal-to-noise ratio of the users in both scenarios. Based on the alternating direction method of multipliers algorithm, a low complexity method is designed to iteratively solve the established problem. In each iteration of the proposed method, the solution is in closed form, and thus the computation complexity is low. Numerical results are presented to show the efficiency of the proposed method.
