论文标题
可重新配置的智能表面：功耗建模和实际测量验证
Reconfigurable Intelligent Surface: Power Consumption Modeling and Practical Measurement Validation
论文作者
论文摘要
可重新配置的智能表面（RIS）引起了很大的兴趣，因为它具有以成本和节能的方式重新配置无线通信环境的能力。但是，现实的功耗建模和RIS的测量验证的关注得多。因此，在这项工作中，我们对RIS的功耗进行了建模，并使用各种RIS进行测量验证以填补此空缺。首先，我们提出了RIS的实用功耗模型。 RIS硬件分为三个基本部分：FPGA控制板，驱动电路和RIS单元单元。前两个部分的功耗被建模为$ p _ {\ text {static}} $，最后一部分的功耗被建模为$ p _ {\ text {unit}} $。 $ p _ {\ text {static}} $和$ p _ {\ text {units}} $的表达在不同类型的riss中不同。其次，我们对各种RIS进行测量以验证所提出的模型。测量了五种不同的RISS，包括PIN二极管，变量二极管和RF开关类型，测量结果验证了RIS建议的功耗模型的一般性和适用性。最后，我们总结了测量结果，并讨论了实现RIS辅助无线通信系统低功耗设计的方法。
The reconfigurable intelligent surface (RIS) has received a lot of interest because of its capacity to reconfigure the wireless communication environment in a cost- and energy-efficient way. However, the realistic power consumption modeling and measurement validation of RIS has received far too little attention. Therefore, in this work, we model the power consumption of RIS and conduct measurement validations using various RISs to fill this vacancy. Firstly, we propose a practical power consumption model of RIS. The RIS hardware is divided into three basic parts: the FPGA control board, the drive circuits, and the RIS unit cells. The power consumption of the first two parts is modeled as $P_{\text {static}}$ and that of the last part is modeled as $P_{\text {units}}$. Expressions of $P_{\text {static}}$ and $P_{\text {units}}$ vary amongst different types of RISs. Secondly, we conduct measurements on various RISs to validate the proposed model. Five different RISs including the PIN diode, varactor diode, and RF switch types are measured, and measurement results validate the generality and applicability of the proposed power consumption model of RIS. Finally, we summarize the measurement results and discuss the approaches to achieve the low-power-consumption design of RIS-assisted wireless communication systems.
