Stacked intelligent metasurfaces-aided full-duplex cooperative rate-splitting multiple access system

被引：0

作者：

Liang, Chenghan ^{[1
]}

Huai, Qiwei ^{[1
]}

Liang, Yuanyi ^{[1
]}

Yuan, Weina ^{[1
]}

机构：

[1] School of Information Science and Engineering, East China University of Science and Technology, Shanghai

来源：

Physical Communication | 2025年 / 72卷

关键词：

Cooperative communication; Full-duplex; Rate-splitting; Stacked intelligent metasurfaces; Sum rate;

D O I：

10.1016/j.phycom.2025.102765

中图分类号：

学科分类号：

摘要：

The powerful interference management and multiple access capabilities of rate-splitting multiple access (RSMA) have been considered as a key technology for potential applications in 6G networks. On the other hand, stacked intelligent metasurfaces (SIM), as a hardware platform capable of supporting wave-domain beamforming, is known for its ability to suppress multi-user interference while reducing hardware costs. In this context, a SIM-assisted full-duplex cooperative RSMA (FD C-RSMA) system was proposed, focusing on the joint optimization of resource allocation and beamforming for the downlink. Given the non-convex nature of the optimization problem, it was decomposed into two subproblems, and an alternating optimization strategy based on successive convex approximation and projected gradient ascent was customized. Simulation results indicate that the SIM-assisted FD C-RSMA scheme outperforms the baseline schemes in terms of system sum rate. © 2025

引用

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