论文标题
速率分类的多个访问及其与智能反射表面的相互作用
Rate-Splitting Multiple Access and its Interplay with Intelligent Reflecting Surfaces
论文作者
论文摘要
速率分类多个访问（RSMA）最近是一种强大的技术，用于改善多输入多输出（MIMO）系统的下行链路性能。通过灵活管理干扰，RSMA可以提供高光谱和能源效率，以及对不完美的通道状态信息（CSI）的鲁棒性。在另一个发展中，出现了智能反射表面（IRS），是一种通过软件可配置的，近乎通信的，次波长反映元素来控制无线环境的方法。本文介绍了IRS和RSMA之间协同作用的潜力。 IRS-RSMA方案可实现的三个重要改进，并由有见地的数值示例支持，并映射到5G超过5G用例以及未来的研究方向。
Rate-splitting multiple access (RSMA) has recently appeared as a powerful technique for improving the downlink performance of multiple-input multiple-output (MIMO) systems. By flexibly managing interference, RSMA can deliver high spectral and energy efficiency, as well as robustness to imperfect channel state information (CSI). In another development, an intelligent reflecting surface (IRS) has emerged as a method to control the wireless environment through software-configurable, near-passive, sub-wavelength reflecting elements. This article presents the potential of synergy between IRS and RSMA. Three important improvements achievable by IRS-RSMA schemes are identified, supported by insightful numerical examples, and mapped to beyond-5G use cases, along with future research directions.
