ARIS-RSMA Enhanced ISAC System: Joint Rate Splitting and Beamforming Design
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Abstract (arXiv)
This letter proposes an active reconfigurable intelligent surface (ARIS) assisted rate-splitting multiple access (RSMA) integrated sensing and communication (ISAC) system to overcome the fairness bottleneck in multi-target sensing under obstructed line-of-sight environments. Beamforming at the transceiver and ARIS, along with rate splitting, are optimized to maximize the minimum multi-target echo signal-to-interference-plus-noise ratio under multi-user rate and power constraints. The intricate non-convex problem is decoupled into three subproblems and solved iteratively by majorization-minimization (MM) and sequential rank-one constraint relaxation (SROCR) algorithms. Simulations show our scheme outperforms nonorthogonal multiple access, space-division multiple access, and passive RIS baselines, approaching sensing-only upper bounds.
Key facts. No citing papers in the map yet (data through 14 Oct 2026). Builds on 6 of its 13 references that are in the map. First posted on arXiv 6 Feb 2026.
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6 of 13 references.
References · 6
- 2021Rate-Splitting Multiple Access for Multi-Antenna Joint Radar and Communicationscited by 3
- 2024Enhancing Robustness and Security in ISAC Network Design: Leveraging Transmissive Reconfigurable Intelligent Surface with RSMAcited by 2
- 2023Joint Transceiver Beamforming and Reflecting Design for Active RIS-Aided ISAC Systemscited by 1
- 2023Optimal Beamforming for MIMO DFRC Systems with Transmit Covariance Constraintscited by 1
- 2023Rate-Splitting Multiple Access for Simultaneous Multi-User Communication and Multi-Target Sensingcited by 1
- 2024Robust Secure ISAC: How RSMA and Active RIS Manage Eavesdropper's Spatial Uncertaintycited by 1
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