文献类型：期刊文献

英文题名：Stacked intelligent metasurfaces-aided full-duplex cooperative rate-splitting multiple access system

作者：Liang, Chenghan[1];Huai, Qiwei[1];Liang, Yuanyi[1];Yuan, Weina[1]

机构：[1]East China Univ Sci & Technol, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China

年份：2025

卷号：72

外文期刊名：PHYSICAL COMMUNICATION

收录：;EI(收录号：20252918818947);WOS:【SCI-EXPANDED(收录号:WOS:001561579300001)】；

语种：英文

外文关键词：Stacked intelligent metasurfaces; Rate-splitting; Cooperative communication; Full-duplex; Sum rate

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.