论文标题
IRS辅助通信的Stackelberg游戏方法用于资源分配
A Stackelberg Game Approach to Resource Allocation for IRS-aided Communications
论文作者
论文摘要
众所周知，通过以低成本的被动反射方式反射发射机的入射信号，可以有效地改善智能反射表面（IRS）辅助蜂窝网络的能力。但是，在实际的网络操作中，基站（BS）和IRS可能属于不同的运营商，因此，国税局不愿意在不付款的情况下帮助BS。因此，本文研究了IRS辅助的多源多输入和单输出（MISO）下行链路通信系统的基于价格的反思资源（元素）分配策略，其中所有频段上的所有传输都在同一频段上进行。假设IRS由多个模块组成，每个模块都与智能控制器连接，因此，模块的状态（活动/空闲）可以由其控制器操作，并且可以通过光纤链接相互通信所有控制器。提出了一种基于Stackelberg游戏的交替方向方法（ADMM），以共同优化主动模块的BS和无源光束成形的发射光束。提出了数值示例以验证所提出的算法。结果表明，所提出的方案在BS和IRS的实用程序中都是有效的。
It is known that the capacity of the intelligent reflecting surface (IRS) aided cellular network can be effectively improved by reflecting the incident signals from the transmitter in a low-cost passive reflecting way. Nevertheless, in the actual network operation, the base station (BS) and IRS may belong to different operators, consequently, the IRS is reluctant to help the BS without any payment. Therefore, this paper investigates price-based reflection resource (elements) allocation strategies for an IRS-aided multiuser multiple-input and single-output (MISO) downlink communication systems, in which all transmissions over the same frequency band. Assuming that the IRS is composed with multiple modules, each of which is attached with a smart controller, thus, the states (active/idle) of module can be operated by its controller, and all controllers can be communicated with each other via fiber links. A Stackelberg game-based alternating direction method of multipliers (ADMM) is proposed to jointly optimize the transmit beamforming at the BS and the passive beamforming of the active modules. Numerical examples are presented to verify the proposed algorithm. It is shown that the proposed scheme is effective in the utilities of both the BS and IRS.
