无线网络中智能超表面部署研究

Research of Reconfigurable Intelligent Surface Deployment for Wireless Communication Networks

智能超表面(Reconfigurable Intelligent Surface,RIS)作为面向未来的改变传播环境的技术,在无线通信系统中起着重要的作用,可通过改变无线信道环境,来改变信号的传播特性,从而能够按需提供无线网络的覆盖和容量。相比传统无线通信的被动适应无线信道,转化为未来无线通信的自适应可重构无线信道。在智能超表面现有工作基础上,研究了智能超表面技术的波束设计、部署特征、部署性能等关键技术。针对上述方向,进一步剖析了其未来应用特性,并从覆盖效率等方面进行了定义。最后通过仿真来定量地分析面板部署的性能和方案,从而充分发挥其在未来无线网络中的覆盖和容量增强优势。

As a future technology to change the propagation environment,Reconfigurable Intelligent Surface(RIS)technology plays an important role in wireless communication system.It can change the propagation characteristics of signals by changing the wireless channel environment,so as to provide the coverage and capacity of wireless network on demand.Compared with traditional wireless communication,the passive adaptive wireless channel is transformed into an adaptive reconfigurable wireless channel for future wireless communication.Based on existing research work of RIS,key technologies such as beam design,deployment characteristics and deployment performance of RIS technology are studied.In view of the above directions,its future application characteristics are further analyzed,and its coverage efficiency is defined.Finally,the performance and scheme of panel deployment are quantitatively analyzed through simulations,so as to give full play to its advantages of coverage and capacity enhancement in future wireless networks.