Title: Rate-Splitting Multiple Access for 6G Networks: Ten Promising Scenarios and Applications Show Chinese title

Title: 速率分割多址接入用于6G网络：十个有前景的场景和应用

Abstract: In the upcoming 6G era, multiple access (MA) will play an essential role in achieving high throughput performances required in a wide range of wireless applications. Since MA and interference management are closely related issues, the conventional MA techniques are limited in that they cannot provide near-optimal performance in universal interference regimes. Recently, rate-splitting multiple access (RSMA) has been gaining much attention. RSMA splits an individual message into two parts: a common part, decodable by every user, and a private part, decodable only by the intended user. Each user first decodes the common message and then decodes its private message by applying successive interference cancellation (SIC). By doing so, RSMA not only embraces the existing MA techniques as special cases but also provides significant performance gains by efficiently mitigating inter-user interference in a broad range of interference regimes. In this article, we first present the theoretical foundation of RSMA. Subsequently, we put forth four key benefits of RSMA: spectral efficiency, robustness, scalability, and flexibility. Upon this, we describe how RSMA can enable ten promising scenarios and applications along with future research directions to pave the way for 6G. Show Chinese abstract

Abstract: 在即将到来的6G时代，多址接入（MA）将在实现各种无线应用所需的高吞吐量性能方面发挥关键作用。 由于MA和干扰管理是密切相关的问题，传统MA技术存在局限性，即它们无法在普遍的干扰环境中提供接近最优的性能。 最近，速率分割多址接入（RSMA）引起了广泛关注。 RSMA将单个消息分为两部分：公共部分，每个用户都可以解码，以及私人部分，只有目标用户才能解码。 每个用户首先解码公共消息，然后通过连续干扰消除（SIC）解码其私人消息。 通过这样做，RSMA不仅将现有的MA技术作为特殊情况涵盖其中，而且通过在广泛干扰环境中有效缓解用户间干扰，提供了显著的性能提升。 在本文中，我们首先介绍RSMA的理论基础。 随后，我们提出RSMA的四个主要优势：频谱效率、鲁棒性、可扩展性和灵活性。 在此基础上，我们描述RSMA如何支持十个有前景的场景和应用，并指出未来的研究方向，为6G铺平道路。