论文标题
5G频道模型对智能反射表面的性能和解码传递的影响
The Impact of 5G Channel Models on the Performance of Intelligent Reflecting Surfaces and Decode-and-Forward Relaying
论文作者
论文摘要
智能反射表面（IRS）是具有可配置散射属性的离散元素的数组。它有能力将无线电波到预期的接收器到达，这使其成为第五代（5G）通信的候选技术。最近的一项研究揭穿了IRS可以替代继电器的观念，因为甚至需要大量IRS元素才能接近简单的单端解析和前向（DF）继电器的性能。该研究将4G通道模型引入了一个理论框架，以获得模拟结果，基于在这些框架之间进行了两个方案之间的比较。在本文中，我们考虑了5G频道模型，反思修订后的结果，并认为IRS和DF继电器可以互相补充，并且可以在5G和5G架构之外占有一席之地。
An intelligent reflecting surface (IRS) is an array of discrete elements with configurable scattering properties. It has the capability to beamform arriving radio waves to an intended receiver, making it an attractive candidate technology for fifth-generation (5G) communications. A recent study debunked the notion that IRSs can replace relays because a large number of IRS elements is required even to approach the performance of simple single-antenna decode-and-forward (DF) relays. The study introduced 4G channel models into a theoretical framework to obtain simulation results, based on which comparisons between the two schemes were carried out. In this paper, we consider 5G channel models, reflect on the revised results, and argue that IRSs and DF relays can complement each other's strengths and can both have a place in 5G and beyond 5G architectures.
