主动 RIS 辅助 RSMA 系统中 HARQ 性能的深入分析

IF 4.6 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Wireless Communications Letters Pub Date : 2024-08-21 DOI:10.1109/LWC.2024.3445503

Yike Zheng;Jie Tang;Beixiong Zheng;Maksim Davydov;Kai-Kit Wong

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引用次数: 0

摘要

利用可重构智能表面（RIS）技术构建智能无线电环境是开发以超高速、最小延迟和广泛连接为特征的第六代（6G）通信网络的先决条件。因此，为了进一步增强无线通信系统的覆盖范围和鲁棒性，我们研究了一种主动 RIS 辅助速率分割多路存取（RSMA）系统。具体来说，我们通过推导采用混合自动重复请求（HARQ）传输协议的用户的中断概率（OP）分析表达式，研究了相关参数对系统性能的影响。数值结果表明1) 实施 HARQ 传输协议可以提高信号质量，改善系统可靠性。2) 可重构元素数量的增加也能显著提高所考虑系统的稳定性能。

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In-Depth Analysis of HARQ Performance in Active RIS-Assisted RSMA Systems

Utilizing reconfigurable intelligent surface (RIS) technology to construct intelligent radio environments is a prerequisite for developing the sixth-generation (6G) communication networks characterized by ultra-high speed, minimal latency, and extensive connectivity. Therefore, to further enhance the coverage and robustness of wireless communication systems, we investigate an active RIS-assisted rate-splitting multiple access (RSMA) system. Specifically, we examine the effect of relevant parameters on system performance by deriving the analytical expressions of the outage probability (OP) for users employing hybrid automatic repeat request (HARQ) transmission protocol. The numerical results indicate that: 1) Implementing the HARQ transmission protocol can boost signal quality and improve system reliability. 2) The increase in the number of reconfigurable elements also significantly enhances the stability performance of the considered system.

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来源期刊

IEEE Wireless Communications Letters Engineering-Electrical and Electronic Engineering

CiteScore

12.30

自引率

6.30%

发文量

481

期刊介绍： IEEE Wireless Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of wireless communications. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of wireless communication systems.